![]() 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. On bivariate analysis, IVCD and MVO2 were better predictors when combined together. 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. What problems arise from Intraventricular Conduction Delay Read full interaction below ยป Ask Your Own Cardiology Question Cardiologist: DR.EHTISHAM Expert: Ask Your Own Cardiology Question JACustomer: Expert: DR.EHTISHAM Experience: DR.EHTISHAM, Doctor Satisfied Customers MBBS, FCPS DR. Relevant data from 241 CHF patients were analysed retrospectively. 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. ![]() First-degree AV block is seen as a PR interval >200 ms and each P wave is followed by a QRS complex with a constant, prolonged interval (Figure 2). Chronic heart failure (CHF) is associated with high mortality, and there are several established clinical and laboratory parameters that predict mortality in CHF. The explanations may include (1) LVSP with a relatively narrow QRSd and short LVAT may have a delayed recruitment of the conduction system or (2) the slow conduction through IVS in patients with LBBB could be bypassed by LVSP. The surface EKG is our most important tool for the diagnosis of AV block and intraventricular conduction disturbances. ![]()
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