低钙血症伴QTc间期缩短——危重症者病情恶化监测的重要指标  

QTc interval shortening with lower serum Ca^(2+):an important indicator of disease progression in critically ill patients

作　　者：陈华[1] 钱宗杰[1] 李全忠[1] 莫新玲[1] 夏中华[1] 吴志伟[1] 池慧[1] 何学恕 方炳森[2] 

机构地区：[1]桂林医学院附属医院心内科,广西桂林541001 [2]中华医学会桂林市分会

出　　处：《临床心血管病杂志》2015年第2期218-220,共3页Journal of Clinical Cardiology

基　　金：桂林市科学研究与技术开发项目(No:20120121-1-8)

摘　　要：资料显示,继发性短QT综合征（SQTS）恶性程度高,缺少有效的救治手段。当QT间期缩短达SQTS标准[1实测QT间期〈320ms;2QT间期小于QT间期预测值[QTp=656/（1＋HR/100）]的88%;3QTc≤340 ms]时,患者往往数分钟至24h内发生死亡[1]。本文对40例死亡患者心电图及电解质资料进行分析,寻找其变化规律,为危重症者病情恶化寻找新的预警指标.Summary QT interval and electrolytes in 40 patients with short QT syndrome were analyzed. Patients＂ QT interval, QTc interval, 3T interval and JTc interval were significantly shorter before death, Tp-Tec interval was slightly longer （P〈0.05）, QRS wave duration and Tp-Te interval were no significant different. The serum Ca2＋ decreased before death. Serum K＋ , Na＋ , C1 and Mg2＋ were no significant different.

关 键 词：短QT综合征 恶性心律失常 QT间期 低钙血症 

分 类 号：R541.7[医药卫生—心血管疾病]