Koscielniak-Nielsen Z J, Otkjaer S, Hansen O B, Hemmingsen C
Department of Anaesthesia, Rigshospitalet, University of Copenhagen, Denmark.
Acta Anaesthesiol Scand. 1991 Nov;35(8):762-6. doi: 10.1111/j.1399-6576.1991.tb03387.x.
We evaluated 160 electrocardiograms taken after placement of central venous catheters (CVC) to determine their locations. Usable recordings were obtained in 154 patients. Subsequent radiographs revealed 30 misplaced catheters. Twenty-five of those were detected by CVC electrocardiograms. There were five false positive and five false negative traces. The sensitivity of CVC electrocardiography was 96%, the specificity 83.3%, and the total predictive power 93.5%. Electrocardiograms obtained from guide-wires were of significantly better quality than those from 0.9% NaCl filled catheters. The technique is accurate, safe and easy to learn. It may reduce the need for routine radiographic control to less than 10% of patients.
我们评估了160份在置入中心静脉导管（CVC）后采集的心电图，以确定导管位置。154例患者获得了可用记录。随后的X光片显示30根导管位置不当。其中25根通过CVC心电图检测到。有5例假阳性和5例假阴性记录。CVC心电图的敏感性为96%，特异性为83.3%，总预测能力为93.5%。从导丝获得的心电图质量明显优于从0.9%氯化钠填充导管获得的心电图。该技术准确、安全且易于学习。它可能将常规X光检查的需求减少到不到10%的患者。
