Chunder R, Nandi S, Guha R, Satyanarayana N
Department of Anatomy, K. P. C. Medical College and Hospital, 1F, Raja S.C. Mullick Road, Jadavpur, Kolkata-700 032, India.
Nepal Med Coll J. 2010 Dec;12(4):207-14.
An extensive morphometric study of human trachea and principal bronchi was undertaken in the Department of Anatomy, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India, on 87 specimens procured from 51 male and 36 female relatively disease free fresh cadavers from Kolkata Police Morgue. The specimens were grouped into five age groups for both sexes. The length of trachea, principal bronchi, subcarinal angle was measured in each specimen. The external transverse diameter (width), internal transverse diameter and anteroposterior diameter (depth) were recorded at two different levels of trachea (junction of upper third and middle third; middle third and lower third) and middle of principal bronchi. Then the width-depth ratio was calculated. For each component of the measurements, standard error (SE), standard deviation (SD) and test of significance were calculated using independent sample't' test and multiple comparison test. The present investigation revealed a wide variation in different dimensions viz. length, transverse and anteroposterior diameters and width-depth ratio of upper and lower trachea and right and left principal bronchi and the subcarinal angle, in a same age group as well as in different age groups in both sexes. The study of these morphometric variations is of profound clinical importance as it may help the clinicians to understand the etiology of several pulmonary diseases and the surgeons to deal with resection and reconstruction of the tracheobronchial tree. This knowledge is also helpful for smooth conduction of some maneuvers like endotracheal intubation and bronchoscopic procedures.
在印度西孟加拉邦加尔各答市研究生医学教育与研究学院解剖学系，对87个标本进行了一项关于人类气管和主支气管的广泛形态测量研究。这些标本取自加尔各答市警察停尸房的51具男性和36具女性相对无病的新鲜尸体。标本按性别分为五个年龄组。测量了每个标本中气管、主支气管和隆突下角度的长度。在气管的两个不同水平（上三分之一与中三分之一交界处；中三分之一与下三分之一交界处）以及主支气管中部记录外部横向直径（宽度）、内部横向直径和前后直径（深度）。然后计算宽深比。对于测量的每个组成部分，使用独立样本“t”检验和多重比较检验计算标准误差（SE）、标准差（SD）和显著性检验。本研究揭示了在同一年龄组以及不同年龄组的男女中，气管上下部、左右主支气管以及隆突下角度的长度、横向和前后直径以及宽深比等不同维度存在广泛差异。对这些形态测量变异的研究具有深远的临床意义，因为它可能有助于临床医生理解几种肺部疾病的病因，以及外科医生处理气管支气管树的切除和重建。这些知识对于顺利进行诸如气管插管和支气管镜检查等操作也很有帮助。
