Shima T, Andoh K, Akama M, Hashimoto Y
Department of Anesthesiology, Sendai Red Cross Hospital.
Masui. 1992 Feb;41(2):190-3.
The correct endotracheal tube size was assessed in 600 anesthetized infants and children. The correct tube size was determined by the airway pressure at which a gas leak around the endotracheal tube occurred, when the lungs were inflated with slowly increasing positive pressure. Endotracheal tube size correlated most with body length where the correlation coefficient was 0.973 (P less than 0.01), followed by body weight, tracheal size in X-ray photograph and age. But, there were four correct tube sizes for patients with the same body length.
对600名接受麻醉的婴幼儿和儿童评估了合适的气管内导管尺寸。合适的导管尺寸是通过在缓慢增加正压使肺充气时，气管内导管周围出现气体泄漏时的气道压力来确定的。气管内导管尺寸与身长的相关性最强，相关系数为0.973（P<0.01），其次是体重、X线片上的气管尺寸和年龄。但是，对于身长相同的患者存在四种合适的导管尺寸。
