Division of Otolaryngology, Department of Surgery, University of Calgary, Calgary, Alberta, Canada.
Am J Rhinol Allergy. 2009 Nov-Dec;23(6):e14-6. doi: 10.2500/ajra.2009.23.3405. Epub 2009 Sep 18.
Chinook, or föhn, is a weather phenomenon characterized by a rapid influx of warm, high-pressured winds into a specific location. Pressure changes associated with chinook winds induce facial pain similar to acute sinusitis. The purpose of this study was to determine the relationship between sinonasal anatomy and chinook headaches.
Retrospective computed tomography (CT) sinonasal anatomy analysis of 38 patients with chinook headaches and 27 controls (no chinook headaches). The chinook headache status was blinded from the CT reviewer. Forty-one sinonasal anatomy variants, Lund-Mackay status, and sinus size (cm(3)) were recorded.
There were three statistically significant sinonasal anatomy differences between patients with and without chinook headaches. The presence of a concha bullosa and sphenoethmoidal cell (Onodi cell) appeared to predispose to chinook headaches (p = 0.004). Chinook headache patients had larger maxillary sinus size (right, p = 0.015, and left, p = 0.002). The Lund-Mackay score was higher in the control patients (p = 0.003) indicating that chronic sinusitis does not play a role in chinook headaches.
Chinook winds are a common source of facial pain and pressure. This is the first study to show that sinonasal anatomic variations may be a predisposing factor. Anatomic variants may induce facial pain by blocking the natural sinus ostia, thus preventing adequate pressure equilibrium.
钦诺克风（Chinook），又称焚风，是一种天气现象，其特征是温暖、高压的风迅速涌入特定地点。钦诺克风引起的气压变化会导致类似于急性鼻窦炎的面部疼痛。本研究旨在确定鼻窦解剖结构与钦诺克头痛之间的关系。
对 38 例钦诺克头痛患者和 27 例对照者（无钦诺克头痛）的回顾性鼻窦计算机断层扫描（CT）解剖结构进行分析。CT 阅片者对钦诺克头痛状态进行盲法评估。记录 41 种鼻窦解剖结构变异、Lund-Mackay 评分和鼻窦大小（cm³）。
存在钦诺克头痛的患者与无钦诺克头痛的患者之间有 3 种具有统计学意义的鼻窦解剖结构差异。存在鼻甲卷曲（concha bullosa）和蝶筛窦（Onodi 细胞）似乎易患钦诺克头痛（p = 0.004）。钦诺克头痛患者的上颌窦大小更大（右侧，p = 0.015，左侧，p = 0.002）。对照组患者的 Lund-Mackay 评分更高（p = 0.003），表明慢性鼻窦炎并非钦诺克头痛的原因。
钦诺克风是面部疼痛和压力的常见来源。这是第一项表明鼻窦解剖结构变异可能是诱发因素的研究。解剖结构变异可能通过阻塞自然鼻窦口，从而阻止充分的压力平衡，导致面部疼痛。
