We have found that IVCD is an important ECG predictor of prognosis in patients with CHF. Further analysis of IVCD and QTc showed that, for different cut-off values, IVCD is better than QTc, and that there is a graded increase in mortality with increasing value of IVCD. The addition of plasma sodium, age and NYHA class had no added benefit on the predictive power of the model. A model based on multivariate analysis showed that IVCD, MVO2 and left ventricular ejection fraction (LVEF) were the best predictors of mortality. Of 24,081 patients randomized, 22,067 (92) were included with follow-up 34 ± 13 months. The primary outcome was adjudicated all-cause and cardiovascular (CV) mortality. The application of new imaging technologies, especially cardiac MRI and its correlation to the ECG finding will confirm the ECG findings with specific. On bivariate analysis, IVCD and MVO2 were better predictors when combined together. IVCD was subclassified if left ventricular conduction delay (LVCD) was present (L-IVCD) or absent (O-IVCD). The 152,479 patients who underwent noncardiac surgery were categorized by preoperative electrocardiographic findings: normal (36.1), left bundle branch block (LBBB, 1.2), right bundle branch block (2.9), nonspecific IVCD (3.3), and any other ECG abnormality (56.5). On univariate analysis by the Cox proportional Hazard method, intraventricular conduction delay (IVCD) and QTc were identified as predictors of mortality. Cardiopulmonary exercise testing and radionuclide ventriculogram were also performed where possible. Relevant data from 241 CHF patients were analysed retrospectively. To convert the values of cholesterol to milligrams per deciliter, divide by 0.02586. The purpose of this study was (a) to identify the best ECG parameter that predicts mortality, (b) to evaluate the prognostic marker of ECG against well-established indicators of prognosis. IVCD indicates intraventricular conduction delay LVH, ECG left ventricular hypertrophy according to the Sokolow-Lyon criteria QTc, QT corrected for heart rate and JTc, QTcQRS duration. Chronic heart failure (CHF) is associated with high mortality, and there are several established clinical and laboratory parameters that predict mortality in CHF.
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