D'Anza Brian, Knight Jesse, Greene J Scott
Department of Otolaryngology, Head and Neck Surgery, Facial Plastic Surgery, Geisinger Medical Center, Danville, Pennsylvania.
Laryngoscope. 2015 May;125(5):1093-7. doi: 10.1002/lary.24943. Epub 2014 Sep 24.
OBJECTIVES/HYPOTHESIS: To determine the relationship between body mass index along with other anthropomorphic variables as they relate to tracheal airway dimensions.
Retrospective case series.
This was a radiographic study of 123 consecutive hospitalized patients undergoing tracheotomy over a 4-year period (2007-2011). We measured airway dimensions in axial computed tomography imaging and made comparisons with height, weight, body mass index, gender, and age. Measurements were taken at the first tracheal ring level including anterior-posterior length, width, and calculated area. We expected higher body mass index not to be a good predictor of larger airway dimensions.
The linear regression model showed body mass index was significantly inversely related to tracheal width after controlling for gender and age (P = .0389). For every 1 kg/m(2) increase in body mass index, the tracheal width decreased by 0.05 mm. There was a trend for airway area to diminish with increasing body mass index.
These results are consistent with the hypothesis that obese patients do not have larger airways. Our study indicated a trend toward smaller airways as body mass index increased. Specifically, as body mass index increases, tracheal width appears to decrease. This information should help medical professionals avoid the tendency to use a larger tube to secure the airway of an obese patient. Hopefully, this will result in further research into the field and may prevent future airway injuries in a society where obesity has become epidemic.
4 Laryngoscope, 125:1093-1097, 2015.
目的/假设：确定体重指数以及其他人体测量学变量与气管气道尺寸之间的关系。
回顾性病例系列研究。
这是一项对2007年至2011年4年间连续123例接受气管切开术的住院患者进行的影像学研究。我们在轴向计算机断层扫描成像中测量气道尺寸，并与身高、体重、体重指数、性别和年龄进行比较。测量在第一气管环水平进行，包括前后径、宽度和计算面积。我们预期较高的体重指数不是较大气道尺寸的良好预测指标。
线性回归模型显示，在控制性别和年龄后，体重指数与气管宽度显著负相关（P = 0.0389）。体重指数每增加1 kg/m²，气管宽度减少0.05 mm。气道面积有随体重指数增加而减小的趋势。
这些结果与肥胖患者气道不更大的假设一致。我们的研究表明，随着体重指数增加，气道有变小的趋势。具体而言，随着体重指数增加，气管宽度似乎减小。这些信息应有助于医学专业人员避免使用较大尺寸气管导管来确保肥胖患者气道安全的倾向。希望这将促使该领域进行进一步研究，并可能预防肥胖已成为流行病的社会中未来的气道损伤。
4《喉镜》，2015年，第125卷，第1093 - 1097页
