A-Lines and B-Lines Lung Ultrasound as a Bedside Tool for Predicting Pulmonary Artery Occlusion Pressure in the Critically III
A-Lines and B-Lines Lung Ultrasound as a Bedside Tool for Predicting Pulmonary Artery Occlusion Pressure in the Critically III
复制标题
DOI：
10.1378/chest.09-0001
复制
发表时间：
2009-10-01
期刊：
影响因子：
9.6
通讯作者：
Gepner, Agnes
中科院分区：
文献类型：
--
作者：
Lichtenstein, Daniel A.;Meziere, Gilbert A.;Gepner, Agnes
背景：在危重病患者中，肺水肿的风险是液体治疗的主要限制因素。间质水肿是肺泡水肿之前的一种亚临床步骤。这项研究评估了一种检测间质水肿的床边工具--肺超声。A线是一种水平伪影，显示肺表面正常。B线是一种彗星尾影，显示胸膜下间质水肿。方法：在大学附属教学医院的内科ICU中进行前瞻性研究，探讨肺超声检测前间质水肿与肺动脉阻断压(PAOP)的关系。我们招募了102名连续接受机械通气的患者，他们都接受了肺动脉插管。我们将A优势定义为前A线的多数，将B优势定义为前B线的多数。结果：对PAOP的诊断具有较高的准确性
Background: The risk of pulmonary edema is the main limiting factor in fluid therapy in the critically ill. Interstitial edema is a subclinical step that precedes alveolar edema. This study assesses a bedside tool for detecting interstitial edema, lung ultrasound. The A-line is a horizontal artifact indicating a normal lung surface. The B-line is a kind of comet-tail artifact indicating subpleural interstitial edema. The relationship between anterior interstitial edema detected by lung ultrasound and the pulmonary artery occlusion pressure (PAOP) value was investigated.Method: We performed a prospective study in medicosurgical ICUs of university-affiliated teaching hospitals. We enrolled 102 consecutive mechanically ventilated patients who all underwent pulmonary artery catheterization. We defined A-predominance as a majority of anterior A-lines and B-predominance as a majority of anterior B-lines. These patterns were correlated with PAOP.Results: For diagnosing PAOP