Hemodynamic Congestion at Hospital Discharge Predicts Rehospitalization during Short Term Follow Up in Acute Heart Failure Patients

Abstract

Introduction Rehospitalization after an admission for acute heart failure (AHF) is a prevalent and costly problem. A primary driver is persistent hemodynamic congestion at discharge. This literature review synthesizes recent evidence on the critical relationship between residual congestion and short-term rehospitalization risk in AHF patients.

Methods This comprehensive review analyzes eight key articles published between 2014 and 2024, including systematic reviews and cohort studies. The analysis examines the pathophysiology of congestion, the utility of various diagnostic markers (clinical signs, biomarkers, and imaging), and the impact of residual congestion on post-discharge outcomes.

Results The literature shows that persistent hemodynamic congestion at discharge is a primary predictor of short-term rehospitalization and mortality. This state, characterized by elevated cardiac filling pressures, can persist even after clinical symptoms resolve. Elevated natriuretic peptides at discharge are among the strongest predictors of adverse outcomes. However, different non-invasive congestion markers often lack correlation, indicating a single measure is insufficient. Approximately 25% of patients are readmitted within 30 days, highlighting that adequate decongestion is frequently not achieved.

Discussion The evidence suggests the goal of AHF hospitalization must shift from symptomatic relief to achieving true euvolemia, confirmed by objective markers. This residual congestion defines a "vulnerable phase" post-discharge, significantly increasing readmission risk. The poor correlation between various assessment tools necessitates an integrated, multimodal strategy over a unimodal approach.

Conclusion To reduce high AHF readmission rates, clinical practice must prioritize managing residual hemodynamic congestion before discharge. A multimodal approach combining clinical evaluation with objective biomarkers and noninvasive imaging is essential to ensure true decongestion and improve post-discharge outcomes.