使用机械通风机在长椅设置中的机械通风机进行肺气泄漏测量的特征
Bob P Hermans1, Jeroen L M van Doorn2, Lisanne H Roesthuis3
1Department of Cardio-thoracic surgery, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
Journal of medical engineering & technology
|July 25, 2024
概括
在肺部手术后量化空气泄漏 (AL) 是至关重要的. 这项研究发现,虽然机械通风机可以准确地测量大量的空气泄漏,但它们很难检测小泄漏.
科学领域:
- 胸部外科手术 胸部外科手术
- 关键护理医学 关键护理医学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 肺切除后长时间的空气泄漏 (AL) 会使恢复复杂化,增加住院时间和风险.
- 为了更好的治疗决策,需要精确的手术内和手术后的AL量化,但仍然没有特征.
研究的目的:
- 调查AL计算的准确性,使用来自重症监护室机械呼吸机 (Servo-I) 的潮体积.
- 将来自呼吸机的AL测量与来自数字胸部排水系统的AL测量进行比较.
主要方法:
- 用Servo-I呼吸器的吸入和呼出潮体积数据来测量AL,以基线偏差进行校正.
- 用布兰德-阿尔特曼分析和相关系数分析了测量结果.
- 呼吸机数据的平均值是5次呼吸,并逐呼吸进行分析.
- 数字胸部排水系统测量作为比较.
主要成果:
- 经过校正的Servo-I AL测量显示,泄漏>500毫升/分钟的精度高 (R>0.904),平均偏差为7.4%.
- 在Servo-I上进行的呼吸对呼吸分析对于典型的潮体积 (350-600毫升) 中的泄漏>20毫升/呼吸是准确的.
- 数字排水系统显示出强烈的相关性 (R=0.999) 和均质散射,在广泛范围 (0-2000 mL/min) 中平均偏差为-11.1%.
结论:
- 伺服式-I通风器可以准确量化临床上显著的空气泄漏 (>500毫升/分钟),但具有检测值,限制其用于小型泄漏.
- 数字胸部排水系统在广泛范围内提供可靠和准确的AL测量.
- 对于临床医生和研究人员来说,对特定设备的准确性和互操作性的认识至关重要.
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