Role of electrocardiographic QRS duration in reviewing of chronic systolic heart failure
GAO Yi
MIAO Yang
YANG Ping
Abstract：Objective To discuss the relationship between electrocardiographic QRS duration (QRSd) and left ventricular structure and function in patients with heart failure (HF).Methods HF patients (n=473) were chosen as HF group and patients without HF (n=100) were chosen as non-HF group from Jun. 2012 to Oct. 2012, and given retrospective analysis. The HF group was divided again into subgroup 1 (QRSd<100 ms,n=271), subgroup 2 (QRSd from 100 ms to 119 ms,n=108) and subgroup 3 (QRSd≥120 ms,n=94) according to QRSd. The difference in QRSd, left atrial diameter (LAD) and left ventricular end-diastolic inner diameter (dimension) (LVEDd) were compared between HF group and non-HF group. The difference in left ventricular ejection fraction (LVEF), left ventricular fraction shortening (LVFS), LAD and LVEDd were compared among 3 subgroups. The correlation between QRSd and indexes of echocardiogram was analyzed.Results QRSd was significantly longer (101.45 ms vs. 94.95 ms,P=0.000), LAD was significantly larger (39.73 mmvs. 31.07,P=0.000) and LVEDd was significantly larger (51.88 mmvs. 43.54 mm,P=0.000) in HF group than those in non-HF group. LVEF, LVFS, LA and LVEDd had significant difference among 3 subgroups (P<0.05). QRSd was negatively correlated to LVEF and positively correlated to LAD and LVEDd (P<0.05).Conclusion The electrocardiographic QRSd is an index for reviewing the severity of HF and ventricular remodeling.
Keywords：Heart failureQRS durationVentricular remodeling
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 85-87 )