论文部分内容阅读
目的观察微波对区域性／全身低热疗法后引起的血压、脉搏、心电图的改变。方法对５４例晚期肿瘤患者用大功率９１５微波机加热下胸或脐周围持续１２０～１８０ｍｉｎ，食管或直肠温度达４０℃以上，１２０～１８０ｍｉｎ。热疗前后测血压、心率及心电图。结果患者有不同程度的心动增速，血压轻度增加。热疗前ＥＣＧ正常的４４例，热疗后有１６例（３６％）出现不同程度的心肌缺血；热疗前ＥＣＧ有轻度缺血性改变的１０例，热疗后８例ＥＣＧ改变加重，２例ＥＣＧ改变消失。热疗１２０分钟，ＥＣＧ出现异常的有２５％（６／２４），１５０分钟以上时有５０％（１０／２０）。均于３～４周后恢复，无严重后果，ＥＣＧ异常的发生率似与被加温的部位无关。结论全身热疗可加重心肌负担，慢性心肌供血不足的病人要慎用。
Objective To observe the changes of blood pressure, pulse and electrocardiogram caused by microwave after regional / systemic hypothermia therapy. Methods 54 patients with advanced cancer under high-power 915 microwave machine under the chest or umbilical continuous 120 ~ 180min, esophageal or rectal temperature of 40 ℃ or more, 120 ~ 180min. Before and after hyperthermia, blood pressure, heart rate and electrocardiogram were measured. Results Patients have varying degrees of cardiac growth, blood pressure increased slightly. There were 44 cases with normal ECG before hyperthermia and 16 cases (36%) after hyperthermia. There were 10 cases of mild ischemic changes of ECG before hyperthermia and 8 cases of ECG changes after hyperthermia Two cases of ECG disappeared. 120 minutes for hyperthermia, 25% (6/24) for ECG abnormalities and 50% (10/20) for more than 150 minutes. All recovered after 3 to 4 weeks, with no serious consequences. The incidence of ECG abnormalities did not appear to be related to the site of warming. Conclusion Whole body hyperthermia can aggravate myocardial burden, and patients with chronic myocardial insufficiency should be used with caution.