Ross R M, Baker T
Department of Anesthesiology, Monmouth Medical Center, Long Branch, NJ 07740.
Can J Anaesth. 1995 Jan;42(1):46-50. doi: 10.1007/BF03010571.
Some of the changes reported in the ECG of parturients undergoing Caesarean section are suggestive of myocardial ischaemia. This study determined serum CK total and the isoenzyme CK-MB levels in 21 patients during and after Caesarean section under epidural anaesthesia. Twenty patients complained of chest pain, discomfort and pressure, while 12 had ST segmental depression. Although the total CK activity in ten patients was elevated, CK-MB activity in all patients was negative. The electrocardiographic changes were rate-related and occurred at the time pressure was placed upon the upper abdomen and lower thoracic cage by the surgeon to facilitate Caesarean delivery. The data from this study demonstrate that no myocardial injury as measured by CK-MB activity occurs in parturients undergoing Caesarean delivery despite the complaint of chest pain, discomfort and pressure, and ST changes in the ECG.
剖宫产产妇心电图报告的一些变化提示心肌缺血。本研究测定了21例硬膜外麻醉下剖宫产术中及术后患者的血清总肌酸激酶（CK）和肌酸激酶同工酶（CK-MB）水平。20例患者主诉胸痛、不适和压迫感，12例有ST段压低。虽然10例患者的总CK活性升高，但所有患者的CK-MB活性均为阴性。心电图变化与心率有关，发生在外科医生对上腹部和下胸廓施压以利于剖宫产分娩时。本研究数据表明，尽管剖宫产产妇主诉胸痛、不适和压迫感以及心电图ST段改变，但以CK-MB活性衡量，并未发生心肌损伤。
