Clinical Study
Benign Paroxysmal Positional Vertigo in Irradiated Nasopharyngeal Carcinoma Survivors
Table 3
Clinical manifestations of 11 irradiated NPC patients with BPPV.
| Patient | BPPV type | Diagnostic maneuvers | Provoked nystagmus | Therapeutic procedure | Outcome |
| 1 | PC(L) | Dix-Hallpike test | Torsional upbeating | CRP | Resolved | 2 | HC(R) | Supine roll test | Geotropic horizontal | GM | Resolved | 3 | PC(R) | Dix-Hallpike test | Torsional upbeating | CRP | Resolved | 4 | PC(R) | Dix-Hallpike test | Torsional upbeating | SM | Resolved | 5 | PC(R) | Dix-Hallpike test | Torsional upbeating | CRP | Resolved | 6 | HC(L) | Supine roll test | Apogeotropic horizontal | GM | Resolved | 7 | PC(R) | Dix-Hallpike test | Torsional upbeating | CRP | Resolved | 8 | PC(L) | Dix-Hallpike test | Torsional upbeating | SM | Resolved | 9 | PC(R) | Dix-Hallpike test | Torsional upbeating | CRP | Resolved | 10 | PC(L) | Dix-Hallpike test | Torsional upbeating | CRP | Resolved | 11 | HC(L) | Supine roll test | Geotropic horizontal | LM | Resolved |
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PC: posterior canal; HCs: horizontal canal; L: left; R: right; CRP: canalith repositioning procedure (Epleys maneuver); SM: Semont's maneuver; LM: Lemperts maneuver; GM: Gufoni maneuver.
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