Messahel F M
Department of Anesthesia and Intensive Care, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia.
Middle East J Anaesthesiol. 1991 Jun;11(2):187-92.
The end-tidal carbon dioxide concentration (ETCO2) of 47 patients undergoing prosthetic knee operations was monitored to detect pulmonary embolism during the anthroplasties. The ETCO2 of one patient dropped suddenly following the release of the tourniquet and insertion of the bone cement. Intracardiac aspiration did not reveal any air. At autopsy there was massive pulmonary thromboembolism and the deep veins of the right leg contained old formed thrombi. Patients undergoing such procedures should be investigated to exclude the presence of deep vein thrombosis so that measures to prevent pulmonary thromboembolism must be taken well in advance. As regards the occurrence of air embolism it is believed that insertion of the bone cement is the most important single factor in the prevention of air embolism during knee arthroplasty.
对47例行人工膝关节置换手术的患者监测呼气末二氧化碳浓度（ETCO2），以在关节成形术中检测肺栓塞。1例患者在松开止血带并注入骨水泥后ETCO2突然下降。心内抽吸未发现任何空气。尸检发现有大量肺血栓栓塞，右下肢深静脉有陈旧性血栓形成。接受此类手术的患者应进行检查以排除深静脉血栓形成，以便必须提前采取预防肺血栓栓塞的措施。关于空气栓塞的发生，据信注入骨水泥是膝关节置换术中预防空气栓塞的最重要单一因素。
