Answers are grounded in this paper and cite their sources.
Retrospective analysis demonstrates predictive value of left ventricular impedance for EF improvement in heart failure patients, suggesting better patient stratification.
Abstract Background: Cardiac resynchronization therapy (CRT) improves outcomes in heart failure patients, but response remains variable. New predictive tools are needed. Methods: A retrospective analysis of CRT patients was conducted using a multivariate logistic regression model. Predictors included left ventricular impedance change, BMI, age, and sex. EF improvement ≥ 10% was the outcome of interest. Results: Male sex (OR = 3.22), early impedance increase (OR = 2.82), and late impedance increase (OR = 2.01) were significantly associated with EF improvement. The model achieved an AUC of 0.77. Conclusion: LV lead impedance trends, combined with clinical variables, may support early prediction of CRT response and aid in patient stratification.
No takes yet. Share an insight, caveat, or question.
Kohoutková et al. (2025) studied this question.
Synapse has enriched 8 closely related papers on similar clinical questions. Consider them for comparative context: