Lee K S, Yang C C
Department of Otolaryngology--Head and Neck Surgery, Mackay Memorial Hospital, Taipei, Taiwan.
Ann Otol Rhinol Laryngol. 2001 Mar;110(3):268-70. doi: 10.1177/000348940111000312.
The measurement of tracheal length in infants is difficult to perform in vivo. In adults, tracheal length may be consistent with age, but in infants, tracheal length may vary much more with age and other factors. This study used video rigid ventilation bronchoscopy to evaluate the length of the airway, concentrating on the population younger than 3 months old. There were 34 infants in this study: 14 boys and 20 girls. The mean length from the superior border of the vocal fold to the carina was 5.04 cm, and the mean tracheal length (from the ridge of the first tracheal ring to the carina) was 4.12 cm. There was no significant difference between boys and girls in the length from the vocal fold to the carina or in the tracheal length. The length from the vocal fold to the carina is best correlated to body weight, followed by body height and age.
婴儿气管长度的体内测量很难进行。在成年人中，气管长度可能与年龄相符，但在婴儿中，气管长度随年龄和其他因素的变化可能大得多。本研究使用视频硬质通气支气管镜评估气道长度，重点关注3个月以下的人群。本研究中有34名婴儿：14名男孩和20名女孩。从声带 superior border 到隆突的平均长度为5.04厘米，平均气管长度（从第一气管环嵴到隆突）为4.12厘米。男孩和女孩从声带到隆突的长度或气管长度之间没有显著差异。从声带到隆突的长度与体重的相关性最好，其次是身高和年龄。 （注：原文中“superior border”表述不太准确，可能是“上缘”之类更准确的表达，但按要求未做修改）
