Palmer C M, Norris M C, Giudici M C, Leighton B L, DeSimone C A
Department of Anesthesiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
Anesth Analg. 1990 Jan;70(1):36-43. doi: 10.1213/00000539-199001000-00007.
Serial electrocardiograms were obtained on 93 healthy ASA physical status I and II term parturients during nonemergent cesarean delivery under regional anesthesia. Electrocardiographic changes occurred in 44 of the 93 patients (47.3%); in 35 of these 44 patients, the changes were characteristic, or suggestive, of myocardial ischemia. Symptoms of chest pain, pressure, and dyspnea occurred in 15 of the 44 patients with electrocardiographic changes; no patient without electrocardiographic change developed symptoms of chest pain, pressure, or dyspnea. Small but statistically significant differences were noted in heart rate, diastolic and systolic arterial pressures, and rate-pressure product between the patients with electrocardiographic changes and those without. The authors speculate that myocardial ischemia is a likely cause of both the electrocardiographic changes seen in these patients and of the symptoms of chest pain and dyspnea that they sometimes experience.
在区域麻醉下行非急诊剖宫产手术期间，对93例美国麻醉医师协会（ASA）身体状况为I级和II级的足月健康产妇进行了系列心电图检查。93例患者中有44例（47.3%）出现了心电图改变；在这44例患者中，有35例的改变具有心肌缺血的特征或提示心肌缺血。44例有心电图改变的患者中，有15例出现胸痛、胸闷和呼吸困难症状；无心电图改变的患者均未出现胸痛、胸闷或呼吸困难症状。有心电图改变的患者与无心电图改变的患者相比，心率、动脉舒张压和收缩压以及心率与血压乘积存在微小但具有统计学意义的差异。作者推测，心肌缺血可能是这些患者出现心电图改变以及有时出现胸痛和呼吸困难症状的原因。
