Is posttraumatic benign paroxysmal positional vertigo different from the idiopathic form?

Area of Science:

• Neuroscience
• Otolaryngology
• Neurology

Background:

• Benign paroxysmal positional vertigo (BPPV) is often linked to head trauma, but clinical details and outcomes of traumatic BPPV (t-BPPV) remain under-investigated.
• Understanding t-BPPV is crucial for effective patient management and treatment strategies.

Purpose of the Study:

• To compare the clinical presentation and treatment outcomes of patients with t-BPPV versus those with idiopathic BPPV (i-BPPV).
• To evaluate patient response to physical treatments and long-term outcomes in both groups.

Main Methods:

• A retrospective review of 247 patients diagnosed with posterior canal BPPV between 1997 and 2000.
• Patients diagnosed using the Dix-Hallpike test and treated with particle repositioning maneuver were categorized into t-BPPV (onset within 3 days of head trauma) and i-BPPV groups.
• Outcomes were compared between 21 t-BPPV patients and 42 i-BPPV controls.

Main Results:

• Traumatic BPPV constituted 8.5% of cases, with motor vehicle crashes and falls being common causes of head trauma.
• Sixty-seven percent of t-BPPV patients required repeated treatments, compared to 14% of i-BPPV patients (P<.001).
• Recurrent attacks were significantly more common in t-BPPV patients (57%) than in i-BPPV controls (19%) over a mean follow-up of 21.7 months (P<.004).

Conclusions:

• Traumatic BPPV encompasses diverse head and neck trauma etiologies, from minor injuries to more severe incidents.
• t-BPPV presents a greater treatment challenge and exhibits a higher propensity for recurrence compared to i-BPPV.
• Findings highlight the need for tailored management strategies for traumatic BPPV due to its distinct clinical course and outcomes.