Holtzhausen Samantha, Unger Marianne, Lupton-Smith Alison, Hanekom Susan
Division of Physiotherapy, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa.
Division of Physiotherapy, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa.
Heart Lung. 2018 Jul-Aug;47(4):418-424. doi: 10.1016/j.hrtlng.2018.04.010. Epub 2018 May 18.
Sonographic assessment of the diaphragm may be a surrogate for interpretation of diaphragm function in mechanically ventilated patients. This study aimed to determine the correlation between respiratory muscle function and diaphragm thickness in a healthy population.
A descriptive study was conducted. Diaphragm thickness was determined by sonographic measurement. Respiratory muscle strength, fatigue and endurance was determined using a mouth pressure manometer.
55 subjects with a mean (SD) age 21.16 ± 1.55 years were studied. Diaphragm thickness was moderately correlated with strength (r = 0.52; r=0.27; p < 0.001). Respiratory muscle fatigue was not correlated with thickness (r=-0.15; r=0.02; p = 0.29) or strength (r=-0.19; r=0.04; p = 0.16).
Diaphragm thickness was moderately correlated to strength but not to fatigue or endurance in healthy individuals. Sonography may be a surrogate measure of volitional respiratory muscle strength and requires confirmation in critically ill patients.
超声评估膈肌可能是解读机械通气患者膈肌功能的一个替代方法。本研究旨在确定健康人群中呼吸肌功能与膈肌厚度之间的相关性。
进行了一项描述性研究。通过超声测量确定膈肌厚度。使用口腔压力计测定呼吸肌力量、疲劳和耐力。
对55名平均（标准差）年龄为21.16±1.55岁的受试者进行了研究。膈肌厚度与力量中度相关（r = 0.52；r = 0.27；p < 0.001）。呼吸肌疲劳与厚度（r = -0.15；r = 0.02；p = 0.29）或力量（r = -0.19；r = 0.04；p = 0.16）均无相关性。
在健康个体中，膈肌厚度与力量中度相关，但与疲劳或耐力无关。超声检查可能是自主呼吸肌力量的一种替代测量方法，需要在危重病患者中得到证实。
