What problem does it solve? Clinicians and researchers working with benign paroxysmal positional vertigo (BPPV) need to interpret nystagmus patterns, identify the affected semicircular canal, and select the correct diagnostic test and repositioning maneuver. This Skill encodes that clinical reasoning workflow with evidence-cited, structured outputs and built-in safety guardrails. ## Core Features & Use Cases - Canal Identification from Nystagmus: Interprets nystagmus direction and pattern (upbeating+torsional, horizontal, downbeating+torsional) to identify the involved posterior, horizontal, or anterior semicircular canal, and differentiates canalithiasis from cupulolithiasis by nystagmus duration. - Diagnostic Test & Maneuver Selection: Matches suspected canals to Dix-Hallpike or supine roll tests, and produces structured repositioning protocols (Epley, Gufoni, Semont, Barbecue) with patient position, head rotation angle, timing, and expected nystagmus response. - 3D Biomechanical Simulation & Portfolio Analysis: Supports physics-based otoconia motion simulation for maneuver design, plus auditing of BPPV paper portfolios to map research gaps and propose testable hypotheses. - Use Case: Given patient data with upbeating, torsional, fatigable nystagmus under 60 seconds, the Skill identifies right posterior canal involvement, recommends the Dix-Hallpike test, and outputs a four-element Epley maneuver plan with an educational-use disclaimer and AKNE wiki source citations. ## Quick Start Ask the assistant to identify the affected semicircular canal and recommend a repositioning maneuver for a patient whose nystagmus is upbeating and torsional, fatigable, and lasts under 60 seconds.
