Monitoring myocardial ischemia by EASI-derived 12-lead electrocardiogram in orthopaedic surgery
- VernacularTitle:推衍12导联心电图监测骨科术中心肌缺血的研究
- Author:
Litao ZHANG
;
Jingmei ZHANG
;
Guohua ZHANG
;
Donghong YANG
;
Jinsong LI
;
Sufen CAI
;
Dalu WANG
;
Fan YI
;
Yuguang WANG
- Publication Type:Journal Article
- Keywords:
Electrocardiography;
Myocardial isehemia;
Monitor
- From:
Chinese Journal of Postgraduates of Medicine
2008;31(15):24-26
- CountryChina
- Language:Chinese
-
Abstract:
Objecfive To investigate possibihty of monitoring myocardial isehemia by eontinuous EASI 12-lead ST-segment trend analysis during orthopaedic surgery and find its rules.Methods Three hundred and eleven consecutive patients who underwent orthopaedic surgery were monitored bv continuous EASI 12-lead ST-segment analysis during surgery.Results Among 311 patients 81 patients(26.0%) had myocardial ischemic events.The ischemie incidence of general anesthetics WaS signifieantly higher than local anesthetics(the spinal or epidural anesthetics and nerve-block anesthetics)(38.1%vs 23.0%.P＝ 0.01 5).During ischemie events the patients whose heart rate exceeded 90 beat per minute was 71.6% (58/81).Among the 177 isehemie events,the duration ofless than 5 minutes was 79.7%(141/177).ST-seg- ment deviation ofless than 0.15 mV was 71.2%(126/177).Conclusions During orthopaedic surgery EASt 12-lead electrocardiogram is the optimal approach for monitoring myocardial isehemia.The ischemic incidence of general anesthetics is significantly higher than local anesthetics.The myocardial ischemia events correlates with fast heart rate.The intraoperative myocardial ischemia events are more often transient.In most of these ischemic events ST-segment deviation is not very serious.
