Clinical Evaluation of Posterior Canal Benign Paroxysmal Positional Vertigo

Background: Benign paroxysmal positional vertigo (BPPV) is a mechanical peripheral vestibular disorder which may involve any of the three semicircular canals but principally the posterior. In as much as the literature has described theories to explain the mechanism of BPPV and also contains scholarly works that elucidate BPPV; its management remains an enigma to most clinicians. To this end; this work was aimed at outlining an evidence-based best practice for most common form of BPPV. Materials and Methods: A systematic review of the literature was conducted between 1948 and June 2011 in PubMed; Embase; Ovid; and Cochrane database through the online Library of the University of Cape Town. Seventy-nine worthy articles that addressed the study were selected on consensus of the two authors. Conclusion: There is consensus for the use of canalith repositioning procedures as the best form of treatment for posterior canal canalolithiasis. However; successful treatment is dependent on accurate identification of the implicated canal and the form of lithiasis. Furthermore; clinicians should note that there is no place for pharmacological treatment of BPPV; unless it is to facilitate repositioning

Migraine-Associated Vertigo and Dizziness as Presenting Complaint in a Private General Medical Practice

Background: Migraine-associated vertigo (MV) remains a developing entity because accepted diagnostic criteria are unavailable. Patients present with debilitating dizziness without experiencing headache; and are often misdiagnosed as anxious. The condition is manageable in primary care without the need for neurological referral. The aim of this study was to investigate the prevalence of MV and migraine-associated dizziness (MD) as presenting complaints. Methods: Patients presented with dizziness probably or definitely associated with migraine history based on the criteria of the International Headache Society. Patients with other vestibulopathies and medical conditions were excluded. Patients were evaluated over a period of nine months. Seven hundred and seventeen patients were examined. The numbers of patients were recorded as a percentage of the population visiting a general practitioner. Response to migraine prophylactic medications was regarded as supporting evidence of the diagnosis. Response was regarded as a complete resolution of symptoms. Results: Of the 717 patients seen; 12 were identified as having probable or definite MV. Five patients were treated with migraine prophylactic medications; namely amitriptyline 25 mg nocte and/or sodium valproate CR 300 mg bd; and all showed a response to the treatment. Conclusions: We conclude that the prevalence of MV as presenting complaint may be as high as 1.67. This figure does however not reflect the total patient population that suffers from the condition - this figure may be much higher. Of those patients treated for MV the response was 100; further supporting the diagnosis. MV is a relevant complaint that is often misdiagnosed as psychogenic in origin

Migraine-Associated Vertigo and Dizziness as Presenting Complaint in a Private General Medical Practice

Migraine-associated vertigo (MV) remains a developing entity because accepted diagnostic criteria are unavailable. Patients present with debilitating dizziness without experiencing headache; and are often misdiagnosed as anxious. The condition is manageable in primary care without the need for neurological referral. The aim of this study was to investigate the prevalence of MV and migraine-associated dizziness (MD) as presenting complaints. Methods: Patients presented with dizziness probably or definitely associated with migraine history based on the criteria of the International Headache Society. Patients with other vestibulopathies and medical conditions were excluded. Patients were evaluated over a period of nine months. Seven hundred and seventeen patients were examined. The numbers of patients were recorded as a percentage of the population visiting a general practitioner. Response to migraine prophylactic medications was regarded as supporting evidence of the diagnosis. Response was regarded as a complete resolution of symptoms. Results: Of the 717 patients seen; 12 were identified as having probable or definite MV. Five patients were treated with migraine prophylactic medications; namely amitriptyline 25 mg nocte and/or sodium valproate CR 300 mg bd; and all showed a response to the treatment. Conclusions: We conclude that the prevalence of MV as presenting complaint may be as high as 1.67. This figure does however not reflect the total patient population that suffers from the condition - this figure may be much higher. Of those patients treated for MV the response was 100; further supporting the diagnosis. MV is a relevant complaint that is often misdiagnosed as psychogenic in origin