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Eleven patients in the surdardized in this multicenter trial and included medgery group also received physical therapy encore vacuum pump erectile dysfunction purchase discount suhagra line. One paications how is erectile dysfunction causes 50 mg suhagra mastercard, steroids erectile dysfunction treatment vacuum device purchase suhagra toronto, bed rest erectile dysfunction pills cheap purchase suhagra 50 mg without prescription, exercise impotence and high blood pressure order 50 mg suhagra visa, traction erectile dysfunction treatment hypnosis buy suhagra 100mg cheap, bractient in the physical therapy group and fve in the ing, injections, chiropractic care, acupuncture and collar group had surgery with Cloward technique. Of the 246 patients with Strength measurements were all performed by one radiculopathy, 160 were nonrandomized to medical physical therapist with standard protocol. Of the therapy was done for 15 visits and was not standard246 patients, only 155 reported data at fnal followized. Both groups improved Of the 81 patients included in the study, 27 were assignifcantly, with greater improvement seen in the signed to cervical bracing, 27 to physical therapy and surgical group. T ree patients asprovement and functional improvement were seen signed to the surgical group refused the procedure in both groups, with greater improvement reported and were handled in intent to treat analysis. Eleven patients in the surgery was still signifcant pain in about 26% of surgical pagroup also received physical therapy. The number returning to work did not difer in the physical therapy group and fve in the collar before and after intervention in either group despite group had surgery with Cloward technique. The authors concluded that surmental well being such as emotional state, level of gery appears to have more success than medical/inanxiety, depression, sleep and coping behavior. Surgery this, a substantial percentage of patients continue reduced the pain faster, but no diference was seen to have severe pain, neurologic symptoms and no after 12 months. PaIn critique, this was a nonrandomized study which tients who still had pain after treatment were more did not utilize validated outcome measures. There socially withdrawn and ceased to express their emowas a high attrition rate to follow-up and the length tions. Both medical/interventional anxiety score was especially high in patients before and surgical treatment protocols were nonstandardand after treatment. The group treated with surgery showed more ment results in improved outcomes when compared anxiety and depression if pain continued, implying with medical/interventional treatment on short higher expectations and more disappointment if it term follow-up. In generfactors (eg, job dissatisfaction) should be considal, coping strategies changed. Active coping (cogniered when addressing surgical or medical/intertive reappraisal and problem solving) was common ventional treatment for patients with cervical before treatment, but disappeared after treatment, radiculopathy from degenerative disorders. It appeared that with intervention, I (Insuffcient Evidence) especially surgery, healthy active coping strategies tended to be replaced by passive coping strategies Persson et al47 conducted a prospective randomized as patients allowed themselves to become more decontrolled trial comparing coping strategies, pain pendent on the intervention. This also implied that and emotional relationships of patients with cervithe ability for active coping was present before inthis clinical guideline should not be construed as including all proper methods of care or excluding other acceptable methods of care reasonably directed to obtaining the same results. Comparison of adverse events between the Bryan artifcial cervical disc and antetially connected to pain. The authors concluded that servative treatment of cervical spondylotic radiculopathy cognitive and behavioral therapy is important to and myelopathy. Design of Lamifuse: a randomised, multi-centre controlled trial comsmall and duration of follow-up was short. Due to paring laminectomy without or with dorsal fusion for these limitations, this potential Level I study procervical myeloradiculopathy. Medical/interventional and terior discectomy without fusion for treatment of cervical radiculopathy and myelopathy. Epidural steroids in the management of chronic spinal pain and raFuture Directions for Research diculopathy. Anterior cermedical/interventional and surgical treatment in vical interbody fusion with hydroxyapatite graft and plate the management of cervical radiculopathy from desystem. Treatment of neck for the treatment of cervical radiculopathy from depain Injections and surgical interventions: Results of the generative disorders would yield invaluable inforbone and joint decade 2000-2010 task force on neck pain mation regarding the relative outcomes of these two and its associated disorders. Microsurgical cervical nerve root decompression via an anterolateral approach: Recommendation #2: Clinical outcome of patients treated for spondylotic radicFuture studies evaluating the efects of emotional, ulopathy. Anterior cervical fusion with interbody understanding of how these factors afect outcomes cage containing beta-tricalcium phosphate augmented with plate fxation: a prospective randomized study with this clinical guideline should not be construed as including all proper methods of care or excluding other acceptable methods of care reasonably directed to obtaining the same results. A long-term outcome study of 170 surgically tients implanted with the Bryan cervical disc prosthesis. Anterior cervical fusion with tantalum Cloward anterior fusion for degenerative cervical spinal implant: a prospective randomized controlled study. Cofollow-up results in patients with cervical disk disease chrane Database Syst Rev. Oct 2008;48(10):440-446; carbon fber cage or a tricortical iliac crest autograft afdiscussion 446. A randomized prospective study of an anteperience with a minimum of 5 years clinical and radiorior cervical interbody fusion device with a minimum of graphic follow-up Clinical article. Cervical disc arthroplasty: a controlled ransurgically treated cervical spondylotic radiculopathy and domized prospective study with intermediate follow-up myelopathy. Health outcome assesstive randomized multicenter clinical evaluation of an anment before and after anterior cervical discectomy and futerior cervical fusion cage. Posterior with pmma interbody fusion for cervical disc disease: longforaminotomy or anterior discectomy with polymethyl term results in 249 patients. Feb 1 2001;26(3):249methacrylate interbody stabilization for cervical soft disc 255. May 15 2006;31(11):1207-1214; discussion 1215Cervicothoracic radiculopathy treated using posterior cer1206. Cervical with radiculopathy: an outcome study of conservaforaminotomy: an efective treatment for cervical spontively or surgically treated patients. Cervical cage fusion with 5 diferent implants: bral disc replacement for cervical degenerative disease-250 cases. Jun 2002;144(6):539this clinical guideline should not be construed as including all proper methods of care or excluding other acceptable methods of care reasonably directed to obtaining the same results. Clinical and radiographic analysis of cervical center study with independent clinical review. Mar disc arthroplasty compared with allograft fusion: a ran15 1999;24(6):591-597. Dec 15 2007;32(26):2933prospective, randomized, controlled multicenter Food 2940; discussion 2941-2932. Social ing Pro-Disc C versus fusion: a prospective randomised and economic outcome after posterior microforaminoand controlled radiographic and clinical study. Apr 2009;151(4):303physical function in patients with chronic radicular neck 309. Rephysiotherapy or neck collar-a blinded, prospective ransults of anterior discectomy without fusion for treatment domized study. Two-level contiguous cerdiculopathy: pain, muscle weakness and sensory loss in vical disc disease treated with peek cages packed with depatients with cervical radiculopathy treated with surgery, mineralized bone matrix: results of 3-year follow-up. May 20 fusion versus discectomy with fusion and instrumenta2007;32(12):1337-1344. Twelve month fusion results based on cedures at adjacent levels that were equivalent for fexion and extension radiographs were reported as both groups over two years. Fusion rate was faster in the cage group as well level reoperation and two had adjacent level operawith 86% achieving fusion at six months compared tions. Fusion rates and symptomatic adjacent Savolainen et al19 reported results of a prospective segment disease were also similar between the two randomized controlled trial comparing clinical regroups. Of the 91 patients included in the study, follow-up data were Oktenoglu et al16 described a prospective randomreported for 88 patients. There was some subsidIn critique, neither patients nor reviewers were ence of the graft over the frst year. Randomization was accomplished by e validity of the conclusion is uncertain due to coin fip and the sample size was small. In general, clinical results consecutively assigned patients included in the improved to one year then plateaued. All had signifcant and similar improvements in pain was worse in the foraminotomy group. At two years, months, according to the non validated grading fusion rate on radiograph was 67%, 93%, and 100% scheme implemented, all three groups were about respectively. Long-term follow-up was accomplished via of these surgeries are suitable for cervical radiculphone interview at 53 months for the foraminotomy opathy due to nerve root compression. Within the limits of their study design In critique, neither the patients nor reviewers were and patient capture, pain improvement remained masked to treatment group, and the sample size was high for all groups. Of the patients comes for treatment of cervical radiculopathy due available at fnal follow-up, 100% were satisfed to single level degenerative disease are similar when and would have the surgery again. The vaIn critique, neither patients nor reviewers were lidity of the conclusions may be compromised by a masked to the treatment group and the randomvery small sample size. Approximately 40% of patients were lost to interbody graft for fusion is suggested to follow-up. No validated outcome the pre operative condition in general, with slight measures were utilized, the sample size was small subsidence and minimal loss of kyphosis in a small and length of follow-up was short. While not the primary outalignment when comparing pre and post operative come measure, radiographic sagittal alignment was lordosis. Any of these surof conclusions are weakened by small sample size geries are suitable for cervical radiculopathy due to and short follow-up. Of the 45 paIn critique, neither the patients nor reviewers were tients included in the study, 15 were randomly asmasked to treatment group, and the sample size was signed to each treatment group. Anterior cervical discectomy to single level degenerative disease are similar when without interbody fusion. The varior cervical discectomy: an analysis on clinical long-term lidity of the conclusions may be compromised by a results in 153 cases. Anterior cervical discectomy with or without fusion with ray Future Directions for Research titanium cage: a prospective randomized clinical study. Anterior Microed for cervical radiculopathy due to single level desurgical Approach for Degenerative Cervical Disk Disease. Extended anterior cerviimportant information about the relative value of cal decompression without fusion: a long-term follow-up study. Changes in the cervical foraminal area after anterior References discectomy with and without a graft. Anterior cervical oneand two-level cervical disc disease: the controversy microdiscectomy with or without fusion. Clinical and functional outcomes of anterior cervicervical disc disease: a prospective randomized study in cal discectomy without fusion. Clinical long-term results of ansults of anterior discectomy without fusion for treatment terior discectomy without fusion for treatment of cervical of cervical radiculopathy and myelopathy. The longthis clinical guideline should not be construed as including all proper methods of care or excluding other acceptable methods of care reasonably directed to obtaining the same results. Anterior cervical discectomy defned inferior graft quality as ventral graft dislowith and without fusion. Results, complications, and longcation greater than 2mm and/or loss of disc height term follow-up. To graft or not to graft: rationalizplate group had signifcantly better results (p=. A prospective analysis of three operative techoutcome for patients treated for cervical radiculopaniques. Discectomy versus discectomy with fusion versus discectomy with fusion and instrumentaIn critique, patients were not masked to treatment tion: a prospective randomized study. The Clinical long-term results of anterior discectomy withauthors did not indicate that the patients were conout interbody fusion for cervical disc disease. There was a signifcantly higher rate ment in cervical spine range of motion postoperaof poor outcomes in the uninstrumented group and tively, but there was no signifcant diference bethis lead to higher rate of second surgery. The authors may lower the likelihood of a poor outcome and defned inferior graft quality as ventral graft disloneed for reoperation. Based upon these criteria, the Zoega et al16 reported results of a prospective ranplate group had signifcantly better results (p=. There was In critique, patients were not masked to treatment a statistically signifcant increase in the frequency group and no validated outcome measures were of postoperative kyphosis in the nonplated group at utilized to assess this small sample of patients. At two years statistical authors did not indicate that the patients were consignifcance was lost (p=>06). No validated outcome measures were utilized in this small sample of paMobbs et al8 described a retrospective comparatients. Of the 27pacohorts, one with single level disease, and one with tients included in the study, 15 were assigned to the multilevel disease. There was a statistically signifcant increase in the frequency References of postoperative kyphosis in the nonplated group at 1. Anterior cervical discectomy for oneand two-level cervical disc disease: the controversy one year follow-up (p=. At two years statistical surrounding the question of whether to fuse, plate, or signifcance was lost (p=>06). The level anterior cervical discectomy and fusion: the efect of authors concluded that the plate maintains alignplate fxation. Anterior cerment, but provides no advantage for healing or for vical plate stabilization in oneand two-level degeneraclinical outcomes. Anterior cervical fusion: measures were utilized in this small sample of paoutcome analysis of patients fused with and without anterior cervical plates. Radiographic analysis of fusion progression following one-level cervical fusion with or without plate fxation. The work group identifed the following suggestion this clinical guideline should not be construed as including all proper methods of care or excluding other acceptable methods of care reasonably directed to obtaining the same results. Jan 2007;60(1 Supp1 1):S112Herkowitz et al7 reported results of a prospective 117. Of the 33 radiculopathy patients inone-level anterior cervical discectomy and fusion?

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When different systems are used for assessing asthma symptom control impotence 24-year-old purchase 100 mg suhagra with mastercard, the results correlate broadly with each other erectile dysfunction purchase suhagra 50mg, but are not identical erectile dysfunction gene therapy 50 mg suhagra sale. Respiratory symptoms may be non-specific so erectile dysfunction protocol book download buy suhagra 100 mg mastercard, when assessing changes in symptom control erectile dysfunction caused by neuropathy buy cheap suhagra 100 mg on line, it is important to clarify that symptoms are due to asthma erectile dysfunction what age does it start generic suhagra 100mg line. Asthma symptom control tools for children 6?11 years of age In children, as in adults, assessment of asthma symptom control is based on symptoms, limitation of activities and use of rescue medication. Many children with poorly controlled asthma avoid strenuous exercise so their asthma may appear to be well controlled. Children vary considerably in the degree of airflow limitation observed before they complain of dyspnea or use their reliever therapy, and marked reduction in lung function is often seen before it is recognized by the parents. Asthma symptom control Level of asthma symptom control Well Partly Uncontrolled In the past 4 weeks, has the patient had: controlled controlled. Risk factors for poor asthma outcomes Assess risk factors at diagnosis and periodically, particularly for patients experiencing exacerbations. Poor symptom control and exacerbation risk should not be simply combined numerically, as they may have different causes and may need different treatment strategies. Specific questions for assessment of asthma in children 6?11 years Asthma symptom control Day symptoms How often does the child have cough, wheeze, dyspnea or heavy breathing (number of times per week or day)? Level of activity What sports/hobbies/interests does the child have, at school and in their spare time? Persistent 98 bronchodilator reversibility is a risk factor for exacerbations, even if the child has few symptoms. Treatment factors Inhaler technique Ask the child to show how they use their inhaler. Goals/concerns Does the child or their parent/carer have any concerns about their asthma. Other investigations (if needed) 2-week diary If no clear assessment can be made based on the above questions, ask the child or parent/carer to keep a daily diary of asthma symptoms, reliever use and peak expiratory flow (best of three) for 2 weeks (Appendix Chapter 4). Exercise challenge Provides information about airway hyperresponsiveness and fitness (Box 1-2, p. Only (laboratory) undertake a challenge if it is otherwise difficult to assess asthma control. Asthma symptom control and exacerbation risk should not be simply combined numerically, as poor control of symptoms and of exacerbations may have different causes and may need different treatment approaches. Risk factors for exacerbations 60-62 Poor asthma symptom control itself substantially increases the risk of exacerbations. People with asthma may have an accelerated decline in lung function and develop airflow limitation that is not fully reversible. Children with persistent asthma may have reduced growth in lung function, and some 117 are at risk of accelerated decline in lung function in early adult life. Risk factors for medication side-effects Choices with any medication are based on the balance of benefit and risk. The risk of side-effects increases with higher doses of medications, but these are needed in few patients. In some asthma control tools, 69,120 lung function is numerically averaged or added with symptoms, but if the tool includes several symptom items, 121 these can outweigh clinically important differences in lung function. For example, in most adult patients, lung function should be recorded at least every 1-2 years, but more frequently in higher risk patients including those with exacerbations and 2. Lung function should also be recorded more frequently in children based on asthma severity and clinical course (Evidence D). Once the diagnosis of asthma has been confirmed, it is not generally necessary to ask patients to withhold their regular 14 or as-needed medications before visits, but preferably the same conditions should apply at each visit. In children, spirometry cannot be reliably obtained until age 5 years or more, and it is less useful than in adults. Many children with uncontrolled asthma have normal lung function between flare-ups (exacerbations). Some patients may have a faster than average decrease in lung function, and develop fixed (incompletely reversible) airflow limitation. While many patients with uncontrolled asthma may be difficult to treat due to inadequate or inappropriate treatment, or persistent problems with adherence or comorbidities such as chronic rhinosinusitis or obesity, the European Respiratory Society/American Thoracic Society Task Force on Severe Asthma considered that the definition of severe asthma should be reserved for patients with refractory asthma and those in whom response to treatment 136 of comorbidities is incomplete. For example, patients prescribed Step 1 or 2 treatments are often described as having mild asthma; those prescribed Step 3?4 as having moderate asthma; and those prescribed Step 4?5 as having moderate-to-severe asthma. This approach is based on the assumption that patients are receiving appropriate treatment, and that those prescribed more intense treatment are likely to have more severe underlying disease. However, this is only a surrogate measure, and it causes confusion since most studies also require participants to have uncontrolled symptoms at entry. For epidemiological studies or clinical trials, it is preferable to categorize patients by the type of treatment that they are prescribed, without inferring severity. This category corresponds to other classifications of uncontrolled asthma in patients not taking controller treatment. In older asthma literature, many different severity classifications have been used; many of 58 these were similar to current concepts of asthma control. It is important that health professionals communicate clearly to patients what they mean by the word severe. How to distinguish between uncontrolled and severe asthma Although most asthma patients can achieve good symptom control and minimal exacerbations with regular controller 120 treatment, some patients will not achieve one or both of these goals even with maximal therapy. In some patients this is due to truly refractory severe asthma, but in many others, it is due to comorbidities, persistent environmental exposures, or psychosocial factors. Assessment of asthma 35 It is important to distinguish between severe asthma and uncontrolled asthma, as the latter is a much more common reason for persistent symptoms and exacerbations, and may be more easily improved. Box 2-4 shows the initial steps that can be carried out to identify common causes of uncontrolled asthma. The most common problems that need to be excluded before a diagnosis of severe asthma can be made are: 85. Investigating a patient with poor symptom control and/or exacerbations despite treatment 36 2. Treating asthma to control symptoms and minimize risk this chapter is divided into five parts: Part A. Information, inhaler skills, adherence, written asthma action plan, self-monitoring, regular review Part D. Difficult-to-treat and severe asthma in adults and adolescents (including decision tree) Management of worsening and acute asthma is described in Chapter 4 (p. Effective asthma management requires a partnership between the person with asthma (or the parent/carer) and their health care providers. For population-level decisions about asthma treatment, the preferred option at each step represents the best treatment for most patients, based on group mean data for efficacy, effectiveness and safety from randomized controlled trials, meta-analyses and observational studies, and net cost. Shared goals for asthma management can be achieved in various ways, taking into account differing health care systems, medication availability, and cultural and personal preferences. This should enable the person with asthma to gain the knowledge, confidence and skills to assume a major role in the management of their asthma. Self-management education reduces 140 141 asthma morbidity in both adults (Evidence A) and children (Evidence A). Patients should be encouraged to participate in decisions about their treatment, and given the opportunity to express their expectations and concerns. Good communication 143-145 Good communication by health care providers is essential as the basis for good outcomes (Evidence B). Teaching health care providers to improve their communication skills (Box 3-1) can result in increased patient satisfaction, better 143-145 146 health outcomes, and reduced use of health care resources without lengthening consultation times. Training patients to give information clearly, seek information, and check their 146 understanding of information provided is also associated with improved adherence with treatment recommendations. Health literacy and asthma 147,148 There is increasing recognition of the impact of low health literacy on health outcomes, including in asthma. Health literacy means much more than the ability to read: it is defined as the degree to which individuals have the capacity to 147 obtain, process and understand basic health information and services to make appropriate health decisions. Low 149 health literacy is associated with reduced knowledge and worse asthma control. In one study, low numeracy among 148 parents of children with asthma was associated with higher risk of exacerbations. Interventions adapted for cultural and ethnicity perspectives have been associated with improved knowledge and significant improvements in inhaler 150 technique. Suggested communication strategies for reducing the impact of low health literacy are shown in Box 3-1. Communication strategies for health care providers 144,145 Key strategies to facilitate good communication. Providing feedback and review 147 How to reduce the impact of low health literacy. Asthma outcomes have been shown to improve after 151,152 the introduction of control-based guidelines or practical tools for implementation of control-based management 142,153 strategies. The concept of control-based management is also supported by the design of most randomized controlled medication trials, with patients identified for a change in asthma treatment on the basis of features of poor symptom control with or without other risk factors such as low lung function or a history of exacerbations. The control-based asthma management cycle 154 For many patients in primary care, symptom control is a good guide to a reduced risk of exacerbations. Therefore, in control-based management, both domains of asthma control (symptom control and future risk see Box 214,58 2, p. Alternative strategies for adjusting asthma treatment Some alternative strategies have been evaluated for adjusting asthma treatment. However, only a limited number of centers have routine access to induced sputum analysis. However, in non-smoking adults with asthma, no significant reduction in risk of exacerbations and in exacerbation rates was observed when compared to guideline-based treatment; a difference was only seen 161 in studies with other (non-standard) comparator approaches. Sputumguided treatment is recommended for adult patients with moderate or severe asthma who are managed in (or can be 136 referred to) centers experienced in this technique (Evidence A). Choosing between asthma treatment options At each treatment step in asthma management, different medication options are available that, although not of identical efficacy, may be alternatives for controlling asthma. Different considerations apply to recommendations or choices made for broad populations compared with those for individual patients (Box 3-3, p. For each treatment step, a preferred controller medication is recommended that provides the best benefit to risk ratio (including cost) for both symptom control and risk reduction. Choice of the preferred controller is based on group mean data from efficacy studies (highly controlled studies in well-characterized populations) and effectiveness studies (from pragmatically controlled 162 studies, or studies in broader populations, or strong observational data), as well as on safety data and cost. The extent to which asthma treatment can be individualized according to patient characteristics or phenotypes depends on the health system, the clinical context, the potential magnitude of difference in outcomes, cost and available 163,164 resources. At present, most research activity about individualized treatment is focused on severe asthma (see Chapter 3E, p. Population level versus patient level decisions about asthma treatment Choosing between treatment options at a population level. Does the patient have any features that predict differences in their future risk or treatment response compared with other patients. If the problems continue, refer to a specialist center for phenotypic assessment and consideration of add-on therapy including biologics 3. The pharmacological options for long-term treatment of asthma fall into the following three main categories. They are also recommended for short-term prevention of exercise-induced bronchoconstriction. Reducing and, ideally, eliminating the need for reliever treatment is both an important goal in asthma management and a measure of the success of asthma treatment. Recommended options for initial controller treatment in adults and adolescents, based on evidence (where available) and consensus, are listed in Box 3-4. Recommendations for a stepwise approach to ongoing treatment are found in Box 3-5 (p. Stepwise approach for adjusting asthma treatment in adults, adolescents and children 6?11 years old Once asthma treatment has been commenced (Box 3-4), ongoing treatment decisions are based on a personalized cycle of assessment, adjustment of treatment, and review of the response. For each patient, in addition to treatment of modifiable risk factors, controller medication can be adjusted up or down in a stepwise approach (Box 3-5) to achieve good symptom control and minimize future risk of exacerbations, persistent airflow limitation and medication sideeffects. This table is based on evidence from available studies and consensus, including considerations of cost. Personalized management for adults and adolescents to control symptoms and minimize future risk 46 3. Personalized management for children 6-11 years to control symptoms and minimize future risk 3. Categories of low, medium, and high doses are based on published information and available studies, including direct comparisons where available. Treating to control symptoms and minimize future risk Choice of medication, device and dose In clinical practice, the choice of medication, device and dose should be based for each individual patient on assessment of symptom control, risk factors, patient preference, and practical issues (cost, ability to use the device, and adherence) (Box 3-3, p. It is important to monitor the response to treatment and any side-effects, and to adjust the dose accordingly (Box 3-5, p. More detail about asthma medications is provided in Appendix Chapter 5 (adults: Part A; children 6?11 years: Part B). Below is more detail about the evidence for each of the treatments shown in Box 3-5A and 3-5B. This was based on indirect evidence from studies in patients eligible for Step 2 treatment (Evidence B). For this recommendation, the most important consideration was to reduce the risk of severe exacerbations. The evidence for this controller option to date is with low dose budesonide-formoterol. Options not recommended for routine use 192-194 Sustained-release theophylline has only weak efficacy in asthma (Evidence B) and side-effects are common, and 195 may be life-threatening at higher doses. Chromones (nedocromil sodium and sodium cromoglycate) have a favorable 196,197 safety profile but low efficacy (Evidence A), and their inhalers require burdensome daily washing to avoid blockage.

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Expert Opin Pharmacother initial screening of psychogenic erectile dysfunction: a 2004;5(4):799-805 erectile dysfunction blood pressure medications side effects cheap 100mg suhagra with amex. The pathophysiology of erectile dysfunction related to endothelial dysfunction and Masand P S erectile dysfunction doctor lexington ky 50 mg suhagra free shipping, Ashton A K erectile dysfunction ring suhagra 50mg amex, Gupta S et al erectile dysfunction aids buy suhagra 100mg line. Effect of sildenafil on blood double-blind erectile dysfunction statistics us suhagra 100 mg low cost, placebo-controlled best erectile dysfunction vacuum pump cheap suhagra 100 mg, parallel-group pressure and arterial wave reflection in treated hypertensive study. Andrological findings in young patients Maytom M C, Derry F A, Dinsmore W W et al. Prevalence and correlates of erectile dysfunction in a population-based study in McCarthy Barry W. Comparison of the efficacy and safety of 90 mg versus 20 mg fluoxetine in the treatment of McClellan K J, Goa K L. International Journal of Impotence Research: McConnell J D, Roehrborn C G, Bautista O M et al. Journal of Drug Evaluation citrate (Viagra) in patients with erectile dysfunction. Long-term followup and selection criteria for penile revascularization in McMahon C. Journal of Assisted Reproduction & Genetics Marberger M, Roehrborn C G, Marks L S et al. Relationship 1992;9265A among serum testosterone, sexual function, and response to treatment in men receiving dutasteride for benign prostatic McMahon C G. Eur Urol improvement in obstructive sleep apnea patients with long-term 2006;50(2):215-217. Moxisylyte: A review of its Efficacy of sildenafil citrate (viagra) in men with pharmacodynamic and pharmacokinetic properties, and its premature ejaculation. Transdermal application 2004;29(6):642 of verapamil gel to the penile shaft fails to infiltrate the tunica albuginea. Drugs of the Future 2004;29(6):633 Milman H A, Arnold S B, Rivera-Miranda G et al. Drugs of the Future design results and analysis of drug treatments for 2004;29(11):1177 erectile dysfunction. Intracavernous injection probe of vasoactive sulfate, and growth hormone levels in ambulatory preparations in the diagnosis of erectile dysfunctions in patients men. The effect of changes in adiposity on testosterone levels in older Meinhardt W, Kropman R F, Vermeij P et al. The influence of men: longitudinal results from the Massachusetts Male medication on erectile function. The first human of sexual dysfunction associated with antidepressant trial for gene transfer therapy for the treatment of erectile agents: a prospective multicenter study of 1022 dysfunction: preliminary results. Hillside J Clin Psychiatry 2001;62Suppl dysfunction in obstructive sleep apnea patients. Journal of Sex and Marital Therapy management of impotence with transcutaneous nitroglycerin. Effect of Casodex on sleepcrossover study to evaluate patient preference between related erections in patients with advanced prostate cancer. Risks of selfFuture Strategies for Preventing and Managing injection therapy for impotence. Improved devices for erectile dysfunction among long-term prostate minimally-invasive assessment of penile cancer treatment survivors: potential influence of sexual haemodynamics: the combination of colour Doppler motivation and/or indifference. Undetectable prostate specific antigen at 6-12 months: a new marker for early Montorsi F, Perani D, Anchisi D et al. Brain activation success in hormonally treated patients after prostate patterns during video sexual stimulation following the brachytherapy. Int J Impot Res trazodone on psychogenic impotence: a randomized, double2005;17(3):291-292. Incidence of erectile dysfunction in men 40 to 69 years old: results from a Nakonezny P A, Byerly M J, Rush A J. Improving the response study of the effect of flutamide on benign accuracy of vascular testing in impotent men: correcting prostatic hyperplasia: results of a multicenter study. Investigation, treatment and monitoring of late-onset Muneer A, Ralph D J, Minhas S. The erectile response to erotic stimuli in men dysfunction: clinical trials of sildenafil citrate (Viagra) with erectile dysfunction, in relation to age and in comparison in treated and untreated patients with depression. Evaluating the effects of an Comorbid Depression: Prevalence, Treatment alpha-2 adrenoceptor antagonist on erectile function in the Strategies, and Associated Medical Conditions. Apomorphine as an alternative to sildenafil in Papatsoris A G, Deliveliotis C, Singer C et al. Time to normalization of serum testosterone after Parazzini F, Menchini Fabris F, Bortolotti A et al. Depot medroxyprogesterone in the management of Study: the case for conservative management. Acta methylprednisolone on return of sexual function after Urol Belg 1997;65(4):13-16. The role of adrenomedullin tadalafil on the time to exercise-induced myocardial in varicocele and impotence. A follow-up study of male sexual disorders: the neurophysiological Pegge N C, Twomey A M, Vaughton K et al. The role assessments, anxiety-depression levels, and response to of endothelial dysfunction in the pathophysiology of fluoxetine treatment [10]. J Clin Psychopharmacol erectile dysfunction in diabetes and in determining 2004;24(4):461-463. Altered sexual function and decreased testosterone in patients receiving Penson D F, Feng Z, Kuniyuki A et al. Am J Clin dysfunction in married impotent patients: interrelationship with Oncol 2003;21(6):1147-1154. Perimenis P, Athanasopoulos A, Papathanasopoulos P Paick S H, Meehan A, Lee M et al. Gabapentin in the management of the recurrent, lower urinary tract symptoms, prostate specific antigen and refractory, idiopathic priapism. Int J Impot Res erectile dysfunction in men with benign prostatic hyperplasia: 2004;16(1):84-85. Selfinjection devices for intracavernosal pharmacotherapy: Palha A P, Gomes F A, Martins A S et al. Int multicentric, and open study to evaluate the efficacy of and J Impot Res 1996;8(2):53-57. Audiovisual sexual stimulation by virtual glasses is Pan C C, Lin J S N, Wong W S. Comparison of effect on effective in inducing complete cavernosal smooth erection between vacuum constriction devices and intramuscle relaxation: a pharmacocavernosometric study. Beneficial sexual side-effects to erectile dysfunction treatment: the impact of combining a from fluoxetine. Br J Psychiatry Suppl 1994;164 Feb psychoeducational intervention with sildenafil. A comparison study of Aldosterone antagonism: An emerging strategy for moclobemide and doxepin in major depression with special effective blood pressure lowering. Benign prostatic hyperplasia and sexual dysfunction [3] (multiple Polak K, Wimpissinger B, Berisha F et al. Lancet 2003;361(9368):1562 on retinal blood flow and flicker-induced retinal vasodilatation in healthy subjects. Switching to moclobemide to reverse fluoxetine-induced sexual dysfunction in Pommerville P J. Re-dosing of prostaglandin-E1 versus prostaglandin myocardial infarct size, microvascular function, and E1 plus phentolamine in male erectile dysfunction: a dynamic acute ischemic left ventricular dilation. The Philippine and Safety of Once-a-Day Dosing of Tadalafil 5 mg and 10 mg Male Aging Survey. Do lipid-lowering drugs in diabetes: aetiology, implications for treatment and cause erectile dysfunction? A sexually compulsive male with placebo-controlled, crossover study of sildenafil in obstructive erectile dysfunction treated with Viagra: Discussion. Arsenic trioxide therapy in acute promyelocytic leukemia and beyond: From Safarinejad M R. Comparison of trimetazidine plus sildenafil to chronic nitrates in the control of Sairam K, Kulinskaya E, Boustead G B et al. What is the relationship between benign prostatic hyperplasia and sexual function. Hemodynamic evaluation of the penile arterial system in patients with Rosen R C, Lane R M, Menza M. Erectile dysfunction: the medicalization of erectile dysfunction treated with Viagra: Case report. Rosen, Raymond C (Ed); Leiblum, Sandra Risa (Ed) Salonia A, Maga T, Colombo R et al. A prospective 1992;(1992):378 study comparing paroxetine alone versus paroxetine plus sildenafil in patients with premature ejaculation. AndroGel (testosterone gel) with sildenafil to treat erectile dysfunction in men with acquired androgen deficiency Salonia A, Rigatti P, Montorsi F. Evaluation of the alleviative Segraves Robert, Taylor Segraves, Kathleen Blindt et action of neurotropin for penile pain associated with al. Sexual function in patients taking bupropion intracavernous injection of prostaglandin E1 assessed using the sustained release. Exploring the relationship between therapy and surgical therapy in diabetic patients with erectile depression and erectile dysfunction in aging men. Infertility and of erectile dysfunction and its correlates in Egypt: a Hypergonadotropic Hypogonadism as First Evidence of community-based study. J Sex dysfunction: an underdiagnosed condition associated Marital Ther 1994;20(2):119-124. Re: Recovery of spontaneous erectile function after nerve-sparing radical retropubic prostatectomy Shabbir M, Shah J S, Kirby R S. Cardiac failure and with and without early intracavernous injections of alprostadil: benign prostatic hyperplasia: Management of common results of a prospective, randomized trial. Aging Male functioning and satisfaction in nonresponders to testosterone 2004;7(4):312-318. Final analysis of the "European Organization for Research and Shakir S A W, Wilton L V, Boshier A et al. Eur Urol Cardiovascular events in users of sildenafil: Results 2004;45(4):457-464. Physiology and pathophysiology of erection: Consequences for present medical therapy of erectile Shamloul R, El-Dakhly M, Ghanem H et al. Intracavernous chlorpromazine versus phentolamine: A double-blind clinical comparative study. Effect of lifestyle changes on erectile dysfunction in Shamsa A, Motavalli S M, Aghdam B. Br J Urol function in end-stage renal disease before and after 2005;173(2):544-545. Journal of Sex Education & Therapy 1991;17(4):283 Sighinolfi M C, de Stefani S, Mofferdin A et al. Intracavernous prostaglandin E1 infusion in diabetes with associated ischemic necrosis of the glans penis. Two additional uses for sildenafil in Br J Urol 2004;171(6 I):2380 psychiatric patients. Transcutaneous dysfunction after therapy with beta-blockers is related to patient nitroglycerin in the treatment of erectile dysfunction in knowledge of side effects and is reversed by placebo. Neurology, Neurosurgery & Psychiatry 1991;54(10):942 Sparwasser C, Drescher P, Pust R A et al. Quantitation of pharmacologically-induced penile erections: the value of Speakman M T, Kloner R A. Viagra and radionuclide phallography in the objective evaluation of erectile cardiovascular disease. Routine psychophysiological screening of 384 men with erectile Stas S N, Anastasiadis A G, Fisch H et al. Eur penile tumescence and sleep electroencephalogram in Urol 2007;51(5):1440 patients with major depression and in normal controls. Br J Vietnam combat veterans with chronic post-traumatic stress Urol 1998;159(4):1390-1393. The role of yohimbine for analysis of sildenafil compared with papaverinethe treatment of erectile impotence. Prolonged penile erections induced by hydroxyzine: Clin Endocrinol (Oxf) 2003;59(3):339-346. Evaluation of the effectiveness of sildenafil using questionnaire methods versus Tindall B, Forde S, Goldstein D et al. Adult-onset idiopathic hypogonadotropic hypogonadism due to isolated pituitary Tomlinson J. Contracept Fertil Sex is associated with neurovascular compression of basal forebrain (Paris) 1993;. Self-referred patients in erectile function: from basic research to a new clinical an aging male clinic: much more than androgen deficiency paradigm for managing men with androgen alone. Prospective dysfunction: a comparative study of short-term efficacy and comprehensive assessment of sexual function after side-effects. Br J Sex Med 2006;3(2):377 retropubic non nerve sparing radical prostatectomy for localized prostate cancer. Treatment of erectile 1) in the diagnosis and treatment of erectile dysfunction in hemodialysis patients and effects of sildenafil dysfunction.

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Syndromes

  • Chemotherapy
  • Inherited MTC runs in families.
  • Learning problems
  • Heart (cardiovascular) changes
  • Too little blood flow to the kidneys, damage to filtering units
  • Is it worse during times of emotional stress?
  • Electroplating
  • Infected kidney stones
  • Head injury
  • Early-onset Huntington disease affects a small number of cases and begins in childhood or the teens.

One of the most famous savants was Blind spite the fact that she doesn?t have access to a watch or clock erectile dysfunction pills that work generic 100mg suhagra amex, Tom Bethune erectile dysfunction age 22 discount suhagra 100mg visa, who lived from 1849 to 1908 erectile dysfunction tucson purchase suhagra 50mg fast delivery. This ability was discovered one day when her referred to as the eighth wonder of the world erectile dysfunction otc cheap suhagra 100mg fast delivery. After could speak fewer than 100 words erectile dysfunction treatment fruits order on line suhagra, he could play beautifully listening for a short while to the recorded voice intone the hour more than 7 erectile dysfunction female doctor suhagra 100 mg without prescription,000 pieces on the piano, including many of his own and seconds, Ellen apparently set her own internal clock. For their part, savant visual artists use a variety of media, alSavant skills are always linked to a remarkable memory. Artistic savant Alonzo Clemons, for example, But it entails little understanding of what is being described. Treffert is a psychiatrist at say, the memorization of sports trivia and license plate numSt. Talented savants have musical or artistic gifts that are conautism and savant syndrome since 1962, the year he met his first spicuously above what would be expected of someone with savant. And prodigious savants are those very uniting researcher at the Social, Genetic and Developmental Psycommon people whose abilities are so advanced that they chiatry Research Center at the Institute of Psychiatry in London. Probably fewer than 50 prodigious savants are alive at the autism are more likely to develop savant skills. With continued use, the abilities are suscauses of left hemispheric damage?and for the higher number tained and sometimes even improve. In their book Cerebral Lateralization, the two there is no dreaded trade-off of these wonderful abilities with neurologists point out that the left hemisphere of the brain northe acquisition of language, socialization or daily living skills. In the male fetus, circulating testosterone can act as one of these detrimental in? As a result, the right brain often compensates, beacterize the talents of savants, no overarching theory can decoming larger and more dominant in males. The most to-female ratio is seen not just in savant syndrome but in other powerful explanation suggests that some injury to the left brain forms of central nervous system dysfunction, such as dyslexia, causes the right brain to compensate for the loss. A 1975 pneumoencephalogram study found left hemispheric damage in 15 Newly Savant of 17 autistic patients; four of them had savant skills. These patients had developed artistic skills with A dramatic study published by T. They were able to ther credence to the possibility that changes to the left hemimake meticulous copies of artworks and to paint beautifully. Miller examined seven other pater the accident, unusual savant mechanical skills emerged. He has observed high-level cognitive function; the temporal lobe is responsible that the savant skills most often present in autistic people are for some aspects of memory and emotion. Tracy Morrell of the University of South Australia, the National Institute of Mental Health has proposed different Robyn L. Young of Flinders University in Adelaide and Michael neural circuits for memory, including a higher-level corticolimC. The memory of savants seems to be the two participants experienced a series of short-lived skills, such noncognitive habit form. Others discovered a new skill here and there, also lasting be instrumental in producing damage to higher-level memory just a few hours. As a result, savants may be forced to rely on more primbe limited to a small percentage of the normal population in the itive, but spared, habit memory circuits. Perhaps brain injuries same way that they are limited to a small percentage of the diswhether they result from hormones, disease, or prenatal or subabled population. Mitchell of the Centre for the Mind in Canberra, Australia, argue that savant brain processes occur in each of us but are overRain Man in Us All? Autistic the emergence of savantlike skills in people with demensavants, they conclude, have privileged access to lower levels tia raises profound questions about the buried potential in all of of information not normally available through introspection. Accordingly, several researchers are seeking to unlock what Our view is also that all of us have some of the same circuitry has been called the little Rain Man in each of us. Perhaps the most famous of these cases is that of Nadia, a girl with autism who by the age of three was producing astounding drawings. Wawro is cared for no longer create brilliant and intricate by his father, who enthusiastically supports his painting. This trade-off between talent and language or socialization is not something Wawro feels delight and excitement when classmates. Instead the exceptional he finishes a work, and he seeks out the one at Hope University in Anaheim, abilities of savants have proved to be celebration. Others include people with conduit toward normalization; these skills characterized him before the movie Rain similar disorders as well; for example, have helped individuals develop improved Man was made; he now travels the country music and art camps have been social skills, better language acquisition talking to hundreds of school groups. Savants gain a Fortunately, simultaneously encouragsyndrome, many of whom have savantlike sense of accomplishment because of their ing savant abilities and normalization is musical skills [see Williams Syndrome and talent; that sense, in turn, allows them to proving to be the accepted approach to the Brain, by Howard M. At certain moments, we just get something or disand repair?areas of research that are vital in understanding cover a new ability. And some procedures?including hypnosis; and treating such diverse conditions as stroke, paralysis and Alinterviews of subjects under the in? Many lessons can be learned from these remarkable peomemories lies dormant in every individual. Dreams can also reple and their equally remarkable families, caretakers, therapists vive those memories or trigger new abilities. One of the greatest lessons is that they have been shaped by far more than neural circuitry. Now that we have the tools to drome promises to take us further than we have ever been toexamine brain structure and function, such studies can be corward understanding both the brain and human potential. Based on a review of the neurology of dyslexia, the model specifies that: 1) Genetically determined focal cortical anomalies in specific left perisylvian language areas are the underlying cause of the phonological deficit; 2) this phonological deficit is the primary cause of reading impairment; 3) Under certain hormonal conditions during gestation, these cortical anomalies induce secondary disruption in sensory pathways, notably in the thalamus. The disruption may even extend to further areas, like the posterior parietal cortex and even the cerebellum; 4) When this happens, the individual affected displays one or several components of a sensorimotor syndrome, which may in some cases aggravate the reading impairment. The model generalises to specific language impairment and possibly to other domain-specific developmental disorders, each particular disorder being characterised by the specific location of the brain anomalies. Certain theoreticians consider them to be domain-specific disorders, arising from congenital dysfunctions circumscribed to certain cognitive components. Others think that these disorders are much more general, and that the seemingly specific components affected are in fact part of a more extended syndrome, usually encompassing the sensory and motor domains (Stein and Walsh 1997; Karmiloff-Smith 1998; Tomblin and Pandich 1999; Gepner and Mestre 2002). Some of these researchers even hold that domain-specific developmental disorders are, in principle, unlikely to exist at all (Thomas and Karmiloff-Smith 2002). In the case of developmental dyslexia, the predominant theory is that it is due to a specific phonological deficit (Snowling 2000). Nevertheless, this view has been challenged by increasing evidence of sensory and motor disorders in dyslexics, leading to competing theories implicating auditory/temporal processing deficits (Tallal 1980; Farmer and Klein 1995), visual/magnocellular dysfunction (Lovegrove et al. In the face of this highly diverse and inconsistent data set, only one theory so far has attempted to account for all the empirical evidence: the general magnocellular theory, in which a generalised dysfunction of magno-cells affects all sensory pathways and further spreads to the posterior parietal cortex and the cerebellum, thereby encompassing all the known cognitive, sensory, and motor manifestations of dyslexia (Stein and Walsh 1997; Stein 2001). In particular, it fails to explain why the prevalence of sensorimotor dysfunction is so much lower than that of the phonological deficit in the dyslexic population. Even within the subset of dyslexics affected by sensory and/or motor disorders, the causal relationship with the reading impairment is far from clear (Ramus 2003; Rosen 2003). On the basis of a comprehensive review of the literature, I have previously advocated that dyslexia is, in most individuals, explained by a specific phonological deficit; furthermore, a more general sensorimotor syndrome occurs more often in the dyslexic than in the general population, but does not by itself play a causal role in the aetiology of the reading impairment (Ramus 2003). According to this view, a complete theory of dyslexia must explain both how a specific phonological deficit might arise, and why a sensorimotor syndrome should be significantly associated with it. Specifically, it potentially explains how a phonological deficit may arise from genetically determined brain anomalies, in isolation in certain individuals, or in conjunction with sensorimotor impairments in others. This model is compatible with all the known genetic, neurological, and cognitive data available on dyslexia. It further suggests explanations for a few puzzling issues like co-morbidity between and heterogeneity within disorders, and makes a number of specific predictions yet to be tested. Insights from anatomical studies and animal models Post-mortem examination and brain imaging studies have documented many differences between dyslexic and control brains, in the left peri-sylvian cortex (Galaburda et al. In most cases, the functional significance of these brain differences has not been elucidated. It is not even clear which of those differences are specifically relevant to dyslexia, considering the well-known comorbidity between dyslexia and many other disorders (Kadesjo and Gillberg 2001; Kaplan et al. Nevertheless, the functional significance of two types of brain anomalies has been studied in greater detail. Anomalies of cell migration called molecular layer ectopias and focal microgyri have been observed by Galaburda and colleagues in the peri-sylvian cortex of dyslexic brains (Galaburda and Kemper 1979; Galaburda et al. Ectopias consist of 50-100 neurons and glia that have escaped into the molecular layer of the cortex through a breach in the external glial limiting membrane, accompanied by mild disorganization of the subjacent cortical layers. Microgyria are more severe disturbances where the organisation of all layers of the cortex is severely affected. It is quite natural to hypothesise that anomalies in the magnocellular layers of the lateral geniculate are the cause of visual deficits, and that anomalies in the medial geniculate are the cause of auditory deficits. Similarly, it is easy to see cortical anomalies in left peri-sylvian areas as the underlying cause of phonological, and perhaps other cognitive difficulties. In this anatomical evidence, one can therefore see direct neurological support for auditory and magnocellular theories of dyslexia. The implicit causal (bottom-up) scenario is that anomalies in the thalamus engender ectopias and microgyria in certain cortical areas to which the thalamus is connected. At the cognitive level, this would translate into the auditory deficit causing a phonological deficit, and into the basic visual deficit causing visual attention/planning problems, as prescribed by the magnocellular theory. Indeed, Galaburda and colleagues have found that, at least in animal models, the causal direction seems to be the opposite (top-down), i. Indeed, it is possible to surgically induce ectopias and microgyria by poking a hole in the external glial limiting membrane of the developing cortex of rats during late neocortical neuronal migration. There are also strains of mutant mice that spontaneously develop similar malformations. This suggests that the direction of causation is indeed top-down, from the cortex to sensory relays in the thalamus. Similar auditory disorders are found in ectopic mice, regardless of the localisation of ectopias (Peiffer et al. Another interesting aspect uncovered in these studies is that only male rats were initially found to have impaired auditory function following early inducement of microgyria (Fitch et al. Similarly, only male ectopic mice show auditory deficits (Peiffer, Rosen, and Fitch 2002). Finally, the cortical anomalies themselves seem to have an impact on cognitive function: ectopic mice and rats with spontaneous or induced ectopias and microgyria exhibit a variety of learning deficits (Denenberg et al. Furthermore, the location of the cortical disruption influences the specific type of learning deficit exhibited by the animal (Hyde et al. To summarise, these results suggest that, in animal models at least, (1) cortical anomalies (microgyria, ectopias) induce secondary anomalies in sensory relays in the thalamus, but (2) only under certain f? Obviously, there are many more conceivable neuro-developmental models of dyslexia than the one most directly suggested by these particular neurological observations and animal models. But, limited as these data are, they seem more compatible with the idea of a specific phonological deficit optionally associated with additional sensorimotor disorders, than with any theory requiring causation of the phonological deficit through other sensory/cognitive disturbances. I will now spell out and discuss in further detail what a plausible neurological model of dyslexia and other developmental disorders might be, based on this reinterpretation of the anatomical and animal data. It should be emphasised that this model is largely speculative; it attempts to be compatible with all the available data, but given that the available data is not excessively constraining, alternative models are perfectly viable. The goal here is mainly to provide a plausible, testable model that makes specific predictions. A neurological model of dyslexia Focal anomalies and the phonological deficit the main claim of the model is that congenital anomalies in specific left peri-sylvian areas are the direct cause of a phonological deficit, which itself is the direct cause of reading impairment. A simple version of this model attributes the main responsibility to cortical ectopias and microgyria. This is indeed where the main brain areas involved in phonology seem to be located: mainly the supramarginal and angular gyri, the posterior superior temporal gyrus, the insula, and the inferior frontal gyrus, although there is debate as to which areas are involved specifically in phonological representations, and which are more concerned with reading or speaking (Paulesu et al. Note that this does not exclude that areas which become more specifically dedicated to reading (like the left fusiform gyrus. More generally, the multiplicity of areas involved in phonology and reading, together with the multiple differences found between dyslexic and control brains, makes it plausible that several different patterns of cortical disruption will lead to a reading impairment; this diversity may actually underlie the various manifestations of the phonological deficit in dyslexia. Unfortunately, work on ectopias and focal microgyria in dyslexia has been scarce (only 8 brains have been dissected so far), so the reality of their involvement needs to be confirmed. However this criticism equally applies to all other neurological differences found in dyslexics. The interest of ectopias is that they have been 3 Franck Ramus A neurological model of dyslexia replicated in animal models, and this work provides us with some cues about their genetic origin, and their further neurological and functional consequences. Furthermore, their implication in the etiology of dyslexia is further supported by recent findings by LoTurco and colleagues (this volume) (Wang et al. Nevertheless, given the current state of the research on the neurology of dyslexia, it remains entirely possible that other brain anomalies might be as, or even more strongly implicated. In fact many other brain anomalies might themselves be related to ectopias and microgyria, which may indeed be just one manifestation of a wider disruption. For instance, the planum temporale has been argued to be excessively symmetric in dyslexics (Galaburda et al. Finally, ectopias and microgyria may also be related to the disruption of underlying white matter tracts (Klingberg et al. Many of the brain anomalies observed in dyslexia may therefore be associated with ectopias and microgyria, and be part of the same disruption. Exactly which part of this disruption plays a significant functional role remains to be established. Quite plausibly, cortical ectopias and microgyria in specific left peri-sylvian areas might affect phonological representations; so might a disrupted planum temporale, as this area is thought to underlie speech representations (Liegeois-Chauvel et al. Given the current uncertainty on structure/function relationships, the more general version of the present model is not committed to one particular type of brain anomaly, nor to a particular functional interpretation of each anomaly.

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