Congestion and LActate at diScHarge in Acute Heart Failure

Acute heart failure (AHF) is a leading cause of hospitalization and is associated with high short-term morbidity and mortality, with 20-30% of patients experiencing rehospitalization or death within 30 days. Early adverse events often reflect incomplete recovery, highlighting the need for improved risk stratification after clinical stabilization .Current prognostic approaches mainly focus on hemodynamic congestion. Persistent pulmonary congestion at discharge is a strong predictor of poor outcomes, but these markers primarily assess macrocirculatory abnormalities and do not capture microcirculatory dysfunction, which may persist despite apparent clinical improvement. Lung ultrasound, through the Lung Ultrasound Score (LUS), provides a validated assessment of pulmonary congestion and has demonstrated prognostic value in AHF. However, LUS does not reflect systemic tissue perfusion. In contrast, blood lactate is a robust marker of tissue hypoperfusion, and even mild elevations have been associated with worse outcomes in AHF. A combined score integrating LUS and lactate may therefore better reflect the dual pathophysiology of AHF-persistent congestion and impaired tissue perfusion-and improve prediction of early adverse events. This protocol aims to validate the prognostic value of this combined score for predicting 30-day rehospitalization or death in patients hospitalized for AHF, with the hypothesis that it outperforms LUS alone.

This description comes directly from the study's public registry record.

Semir Nouira Nouira, Professor  ·  +216 73 106 046  ·  semir.nouira.urg@gmail.com

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