体外治疗性超声对正常心肌的影响  

Clinical study of the external therapeutic ultrasound upon normal myocardium

作　　者：孙向东 宋亚辉 谢秀乐 贾林霞 涂中宇 王海清[2] 曹林生[2] 

机构地区：[1]信阳市中心医院心内科,河南信阳464000 [2]华中科技大学同济医学院心血管病研究所

出　　处：《临床心血管病杂志》2003年第10期618-619,共2页Journal of Clinical Cardiology

摘　　要：目的 :探讨体外治疗性超声 (ETUS)对正常心肌的影响。方法 :30例健康志愿者 ,随机均分成两组 ,ETUS组和空白对照组 ,ETUS的频率和声强分别为 0 .8MHz和 1.8W cm2 ,观察ETUS前 10min及ETUS后 12～ 2 4h内血清心肌肌钙蛋白I(cTnI)和肌酸磷酸激酶同工酶 (CK MB)水平的变化。结果 :ETUS前后 ,血清cTnI和CK MB水平差异无显著性意义 (P >0 .0 5 )。结论 :安全剂量的ETUS对正常心肌无明显损伤作用。Objective:To explore the influence of external therapeutic ultrasound (ETUS) upon the normal myocardium.Methods:Thirty healthy volunteers were randomized into two groups, one group with pulsed wave ETUS upon precardial region area, and another group without ETUS. ETUS worked at 0.8 MHz and 1.8 W/cm 2. The levels of serum cardiac troponin I (cTnI) and creatine kinase MB (CK MB) at 10 minutes before and 12～24 hours after the trail were tested.Results:There were no significant differences in serum levels of cTnI and CK MB before and after ETUS.Conclusion:Safe dosage of ETUS treatment has effect on myocardium but no major injuries.

关 键 词：超声 体外治疗性 心肌 心肌肌钙蛋白I 肌酸磷酸激酶同工酶 

分 类 号：R540.4[医药卫生—心血管疾病]