Sanaie Sarvin, Rahmani Farzad, Chokhachian Sara, Mahmoodpoor Ata, Rahimi Panahi Jafar, Mehdizadeh Esfanjani Robab, Mirzaei Masomeh, Soleimanpour Hassan
Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
Emergency Medicine Research Team, Tabriz University of Medical Sciences, Tabriz, Iran.
J Cardiovasc Thorac Res. 2019;11(1):48-52. doi: 10.15171/jcvtr.2019.08. Epub 2019 Mar 13.
There is a correlation between endotracheal cuff pressure and airway complication; therefore, cuff pressure measurement is of an essential importance. The gold standard technique is measuring the cuff pressure by a calibrated manometer. However, there are several methods that injects air into balloon pilot and measures the cuff pressure. The aim of this study is to compare the tracheal cuff pressure measurement by two methods: fixed volume and minimal leak test (MLT). This descriptive study was performed at the emergency department on 110 patients. Patients were randomized into two groups. For one group, fixed volume technique and for the other group MLT was used. Mean cuff pressure was 46.07±23.54 cmH2O in the fixed volume group and 33.72±9.14 cmH2O in the MLT group (=0.05) which is significantly higher in the fixed volume group (=0.028). In addition, 56.4% and 78.2% of the subjects had normal cuff pressure in the fixed volume group and MLT group, respectively; indicating a significantly higher rate in MLT group (=0.025). Both techniques cause above normal intracuff pressure; however, MLT produces more acceptable pressure than fixed volume. It seems that the volume of 10 cc produces high pressures; therefore, fixed values may yield more appropriate results in lower volumes.
气管内套管压力与气道并发症之间存在相关性；因此，测量套管压力至关重要。金标准技术是使用校准的压力计测量套管压力。然而，有几种方法是向气囊导管注入空气并测量套管压力。本研究的目的是比较两种测量气管套管压力的方法：固定容积法和最小漏气试验（MLT）。这项描述性研究在急诊科对110名患者进行。患者被随机分为两组。一组采用固定容积技术，另一组采用MLT。固定容积组的平均套管压力为46.07±23.54 cmH₂O，MLT组为33.72±9.14 cmH₂O（P=0.05），固定容积组显著更高（P=0.028）。此外，固定容积组和MLT组分别有56.4%和78.2%的受试者套管压力正常；表明MLT组的比例显著更高（P=0.025）。两种技术都会导致套管内压力高于正常水平；然而，MLT产生的压力比固定容积法更可接受。似乎10 cc的容积会产生高压；因此，在较小容积下固定值可能会产生更合适的结果。
