Atypical Bilateral Posterior Semicircular Canalolithiasis - A Case Series.

Barany Society includes bilateral typical posterior semicircular canal benign paroxysmal positional vertigo (PSC-BPPV) in its classification of multicanal subtype. In the past decade, less-common and atypical subtypes of PSC-BPPV, like short-arm and non-ampullary arm posterior semicircular canalolithiasis, have emerged, requiring the conduct of conventional and auxiliary positional tests on both sides to uncover their bilaterality. Authors hereby report three atypical less-common subtypes of bilateral PSC-BPPV, discussing their clinicodemographic profiles, management by repositioning maneuvers and physical therapy, and follow up.

Apogeotropic Posterior Semicircular Canal BPPV-A Case Series from South Rajasthan.

Apogeotropic variant of posterior semicircular canal benign paroxysmal positional vertigo (-PSC-BPPV) is a rare peripheral vestibular disorder, characterized by paroxysms of positionally triggered dizzy spells associated with non-positional disequilibrium. It is diagnosed by observing characteristic diagnostic oculomotor responses (torsional downbeating positional nystagmus) during positional testing (Dix-Hallpike and enhanced straight head hanging tests), in conjunction with a response to physical therapy. Much rarer anterior semicircular canal benign paroxysmal positional vertigo (ASC-BPPV) elicits identical oculomotor responses during positional testing.

Inversion Test and Sitting-Up Oculomotor Patterns in Patients with Graviceptive Heavy Posterior Cupula - A Case Series.

A graviceptive heavy posterior cupula typically results from cupulolithiasis and clinically manifests as short vertigo spells when the head moves in the provocative position. Half-Hallpike test (HHT) in posterior cupulolithiasis (PSC-BPPV-) elicits an upbeating ipsitorsional nystagmus (UBITN), which lasts more than a minute as per the consensus criteria developed by the Barany Society. In the last decade, cases with canalolithiasis in the short arm of the posterior semicircular canal (PSC-BPPV-), wherein the otoconial debris falls on the utricular side of the posterior cupula on getting up from supine, rendering it heavy (graviceptive), have been reported.

Can the bending forward test be used to detect a diseased anterior semi-circular canal in patients with chronic vestibular multi-canalicular canalithiasis (BPPV)?

Patients with chronic vestibular multi-canalicular canalithiasis (CVMCC) can have serious morbidities, for example, musculoskeletal pain, dizziness, fatigue, and cognitive difficulties. Involvement of the anterior semi-circular canal (SCC) is common in CVMCC. A mono-canalicular diseased anterior SCC is rare.

Can a Chronic BPPV With a History of Trauma be the Trigger of Symptoms in Vestibular Migraine, Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), and Whiplash Associated Disorders (WAD)? A Retrospective Cohort Study.

Background: In patients with chronic benign paroxysmal positional vertigo (BPPV), i.e., chronic vestibular multicanalicular canalithiasis (CVMCC), abnormal signals are transmitted from diseased labyrinths via the healthy vestibular nuclei complex to their end organs.

Pain and other symptoms in patients with chronic benign paroxysmal positional vertigo (BPPV).

Unlabelled: Background and aim A diagnosis of chronic benign paroxysmal positional vertigo (BPPV) is based on brief attacks of rotatory vertigo and concomitant nystagmus elicited by rapid changes in head position relative to gravity. However, the clinical course of BPPV may vary considerably from a self-limiting to a persisting and/or recurrent disabling problem. The authors' experience is that the most common complaints of patients with chronic BPPV are nautical vertigo or dizziness with other symptoms including neck pain, headache, widespread musculoskeletal pain, fatigue, and visual disturbances.

Treatment of chronic canalithiasis can be beneficial for patients with vertigo/dizziness and chronic musculoskeletal pain, including whiplash related pain.

Background and aim Chronic musculoskeletal pain, e.g. whiplash associated disorders (WAD), fibromyalgia and myalgia, causes significant burden on both the individual and on society as a whole.