Medical Student at Faculty of Medicine, University of Oslo, Oslo, Norway.
Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Laryngoscope. 2022 Feb;132(2):443-448. doi: 10.1002/lary.29851. Epub 2021 Sep 6.
Head trauma may cause dislodgement of otoconia and development of benign paroxysmal positional vertigo (BPPV). The risk of developing BPPV is expected to be highest shortly after the trauma, then decrease and approach the risk seen in the general population. The aim of this study was to estimate the risk-time curve of BPPV development after head trauma.
Prospective observational study.
Patients with minimal, mild, or moderate head trauma treated at the Department of Neurosurgery or the Department of Orthopedic Emergency at Oslo University Hospital, were interviewed and examined for BPPV using the Dix-Hallpike and supine roll maneuvers. BPPV was diagnosed according to the International diagnostic criteria of the Bárány Society. Telephone interviews were conducted at 2, 6, and 12 weeks after the first examination.
Out of 117 patients, 21% developed traumatic BPPV within 3 months after the trauma. The corresponding numbers were 12% with minimal trauma, 24% with mild, and 40% with moderate trauma. The difference in prevalence between the groups was significant (P = .018). During the first 4 weeks after the trauma, it was observed 20, 3, 0, and 1 BPPV onsets, respectively. No BPPV cases were seen for the remainder of the 3-month follow-up.
The risk of developing BPPV after minimal-to-moderate head trauma is considerable and related to trauma severity. Most cases occur within few days after the trauma, but any BPPV occurring within the first 2 weeks after head trauma are likely due to the traumatic event.
3 Laryngoscope, 132:443-448, 2022.
头部外伤可导致耳石脱落和良性阵发性位置性眩晕（BPPV）的发生。头部外伤后 BPPV 的发病风险预计在受伤后短期内最高，然后逐渐降低并接近普通人群的风险。本研究旨在评估头部外伤后 BPPV 发病的风险时间曲线。
前瞻性观察研究。
在奥斯陆大学医院神经外科或骨科急诊部接受治疗的轻度、中度头部外伤患者，通过 Dix-Hallpike 和仰卧位翻滚试验进行 BPPV 检查和访谈。根据 Bárány 学会的国际诊断标准诊断 BPPV。初次检查后第 2、6 和 12 周进行电话随访。
117 例患者中，21%在创伤后 3 个月内发生创伤性 BPPV。轻度创伤、中度创伤的相应发生率分别为 12%、40%。组间患病率差异有统计学意义（P=.018）。创伤后第 4 周内分别观察到 20、3、0 和 1 例 BPPV 发作。在其余 3 个月的随访中未发现 BPPV 病例。
轻度至中度头部外伤后发生 BPPV 的风险相当大，与创伤严重程度有关。大多数病例发生在创伤后几天内，但创伤后 2 周内发生的任何 BPPV 都可能是创伤事件引起的。
3.《喉镜》，132:443-448，2022。
