Lima Leila F R, Nita Luciana M, Campelo Victor E S, Imamura Rui, Tsuji Domingos H
Department of Otorhinolaryngology, Clinicas Hospital, University of São Paulo School of Medicine, São Paulo, Brazil.
Ann Otol Rhinol Laryngol. 2008 Oct;117(10):774-80. doi: 10.1177/000348940811701013.
The high incidence of respiratory disorders is one of the main problems in perinatal medical care. With the increased use of intubation, the incidence of laryngeal injury causing stenosis has also increased. The principal constriction point in the infant's larynx is the midcricoid area. We sought to provide detailed morphometric data on the anatomy of the cricoid cartilage and its relationship with growth and body characteristics of fetuses at 5 to 9 months of gestational age.
Nineteen larynges obtained from 17 stillborn infants and 2 newborn infants ranging in gestational age from 5 to 9 months were studied. Measurements of the cricoid cartilage were made with a millimeter-graded caliper.
Weight was the variable most correlated with cricoid measurements. The cricoid lumen configuration showed an almost elliptic shape and did not change with gestational age. The mean inner subglottic cricoid area was 19.27 +/- 9.62 mm2 and was related to weight and body surface area. Cricoid growth was more pronounced at the outer portion of the cartilage.
The cricoid lumen configuration was elliptic, and its mean area was smaller than that of available endotracheal tubes. This lumen area was most influenced by weight and height.
呼吸系统疾病的高发病率是围产期医疗护理中的主要问题之一。随着气管插管使用的增加，导致狭窄的喉损伤发生率也有所上升。婴儿喉部的主要狭窄点是环状软骨中部区域。我们试图提供有关妊娠5至9个月胎儿环状软骨解剖结构及其与生长和身体特征关系的详细形态学数据。
研究了从17例死产婴儿和2例胎龄5至9个月的新生儿获取的19个喉部。用毫米刻度卡尺对环状软骨进行测量。
体重是与环状软骨测量最相关的变量。环状软骨管腔形态呈近似椭圆形，且不随胎龄变化。声门下环状软骨平均内面积为19.27 +/- 9.62平方毫米，与体重和体表面积相关。环状软骨在软骨外部生长更为明显。
环状软骨管腔形态为椭圆形，其平均面积小于现有气管导管的面积。该管腔面积受体重和身高影响最大。
Zotero 插件