Groom L, Frisch S R, Elliott M
Division of Nursing Research, Montreal General Hospital, Quebec, Canada.
Heart Lung. 1990 Mar;19(2):147-51.
The reproducibility and accuracy of pulmonary artery (PA) pressures in supine versus side-lying positions were compared in two groups of intensive care unit (ICU) patients. Side-lying measurements were reproducible, accurate, and clinically acceptable for surgical ICU patients, but not for medical ICU patients. The inconsistency was partly explained by the reference points used for transducer releveling in lateral positions. Surgical ICU used the fourth intercostal space and dependent midaxillary line; medical ICU used the fourth intercostal space and sternum. Reversing the leveling procedure in each ICU reduced surgical unit accuracy to an unacceptable level; medical unit accuracy was increased but was still too low for clinical acceptance. Further research is needed to identify appropriate anatomic reference points for transducer releveling in the side-lying position and to clarify which patient groups may be safely monitored by using this position.
在两组重症监护病房（ICU）患者中，比较了仰卧位与侧卧位时肺动脉（PA）压力的可重复性和准确性。对于外科ICU患者，侧卧位测量具有可重复性、准确性且临床上可接受，但对于内科ICU患者则不然。这种不一致部分是由侧卧位时换能器重新调平所使用的参考点解释的。外科ICU使用第四肋间和腋中线最低点；内科ICU使用第四肋间和胸骨。在每个ICU中颠倒调平程序会使外科病房的准确性降至不可接受的水平；内科病房的准确性有所提高，但仍过低，无法被临床接受。需要进一步研究以确定侧卧位时换能器重新调平的合适解剖参考点，并阐明哪些患者群体可以通过使用该体位进行安全监测。
