Horizontal canal benign paroxysmal positional vertigo: diagnosis and treatment of 37 patients (original) (raw)

Abstract

Benign paroxysmal positional vertigo (BPPV) is the most frequent type of vertigo 1,2,3 with prevalence between 10.7 and 64.0 per 100,000 population, and lifetime prevalence estimated of 3.2% in females, 1.6% in males, and 2.4% overall 1. BPPV generally has the highest age distribution in the sixth decade of life 3,4 , with a prevalence approaching 9% among the elderly population 5. It is characterized by brief, recurrent episodes of vertigo triggered by changes in head position. Its pathophysiology, so called the "vestibular stones, " concept, is either due to abnormal stimulation of the dome caused by free-floating otoliths within semicircular canals (canalolithiasis), or otoliths clinging in the dome (cupulolithiasis) 4,6,7. The duration, frequency and intensity of symptoms, as well as the nystagmus phenotype, vary depending on the canal in question and the location of the debris within them. The idiopathic form is the most frequent and the average duration of episodic symptoms is about two weeks 8. The right ear is usually more involved 9. Eighty-six percent of affected individuals seek medical care but only 8% receive effective treatment 8. When considering the frequency of affected semicircular canals, certainly for anatomical / positional reasons, BPPV of the horizontal canal (HC-BPPV) is four times less frequent than the posterior canal (PC-BPPV) 6,10 , but this frequency is increasing and currently, depending on the study, the recognition of HC-BPPV ranges from 10% to 42.7% 11,12. Although the symptoms in HC-BPPV and PC-BPPV are similar, important

Key takeaways

sparkles

AI

  1. Diagnosis and treatment of HC-BPPV yielded 100% therapeutic success in 37 patients.
  2. BPPV prevalence ranges from 10.7 to 64.0 per 100,000 population, with lifetime prevalence of 3.2% in females.
  3. HC-BPPV occurs less frequently than PC-BPPV, recognized in 10% to 42.7% of cases.
  4. Gufoni and BBQ maneuvers showed >80% resolution in first visit treatment for HC-BPPV.
  5. HC-BPPV symptoms persist longer than 30 seconds, often accompanied by nausea and vomiting.

Loading...

Loading Preview

Sorry, preview is currently unavailable. You can download the paper by clicking the button above.