Changes of QT Dispersion in Hemodialysis Patients after Administrating Zhigancao Decoction (炙甘草汤)
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摘要:
Objective:To observe the alteration of QT dispersion (QTd) and QTc dispersion (QTcd) in hemodialysis patients after oral administration of Zhigancao Decoction (炙甘草汤,Roasted Licorice Decoction,RLD).Methods:To investigate the alteration of QTd and QTcd in 68 routine hemodialysis patients before and after hemodialysis with 12-lead electrocardiogram (ECG) after orally administrated RLD for 4 weeks.Blood was also taken for measurement of plasma electrolytes,liver function,renal function,hemoglobin (Hgb) and hematocrit (HCT).Results:After hemodialysis,QTd and QTcd were prolonged evidently;the difference was significant between before and after hemodialysis (P<0.05).After RLD orally administrated for 4 weeks,QTd and QTcd only slightly increased after dialysis compared with pre-dialysis (P>0.05).The QTd and QTcd of the post-therapy-post-dialysis decreased significantly compared with the pre-therapy-post-dialysis (P<0.05).There were no other significant changes in other variables (post-therapy-pre-dialysis vs.pre-therapy-pre-dialysis,or post-therapy-post-dialysis vs.pre-therapy-post-dialysis;P>0.05).After therapy,the number of patients with supraventricular arrhythmia,occasional ventricular premature beat and multiple ventricular premature beat were decreased from 15 to 4,10 to 2 and 7 to 1,respectively.Conclusion:RLD therapy not only lowered the increased QTd and QTcd after hemodialysis,but also displayed a safety profile.