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Strategic Timing in TEER: Survival Implications for Mitral Regurgitation in Heart Failure
Session:
SESSÃO DE POSTERS 20 - IC E INTERVENÇÃO VALVULAR
Speaker:
Marta Leite
Congress:
CPC 2025
Topic:
D. Heart Failure
Theme:
11. Acute Heart Failure
Subtheme:
11.4 Acute Heart Failure– Treatment
Session Type:
Cartazes
FP Number:
---
Authors:
Marta Leite; Fábio Nunes; Inês Neves; Diogo Ferreira; Gualter Santos Silva; Pedro Teixeira; Gustavo Pires-Morais; José Ribeiro; Bruno Melica; Pedro Braga; Ricardo Fontes-Carvalho
Abstract
<p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Background:</strong> Transcatheter edge-to-edge repair (TEER) is a minimally invasive strategy for treating moderate-to-severe mitral regurgitation (MR) in patients with heart failure, improving quality of life and reducing heart failure hospitalizations. This study compares survival outcomes in patients undergoing elective TEER versus those treated urgently during hospitalization for acute decompensated heart failure.</span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Methods:</strong> A retrospective cohort study was conducted, including 178 patients with moderate-to-severe MR who underwent TEER at our center. Patients were categorized into elective (n=144) and urgent (n=34) groups. Baseline characteristics, including demographics, cardiovascular comorbidities, echocardiographic findings, and biomarkers (e.g., NTproBNP, EuroSCORE II), were recorded. Survival was assessed using the Cox proportional hazards model, with urgency of intervention as the primary predictor. Kaplan-Meier curves were generated to compare survival probabilities visually between groups.</span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Results: Urgent TEER was associated with significantly higher mortality compared to elective TEER (Figure 1). The Cox model yielded a hazard ratio (HR) of 3.19 (95% CI: 1.74–5.85, p < 0.001), indicating a threefold increase in mortality risk for urgent procedures. Model fit statistics, including likelihood ratio, Wald, and log-rank tests, were all highly significant (p < 0.001), supporting the robustness of the findings. The model’s concordance index was 0.633, suggesting moderate discrimination. Kaplan-Meier analysis revealed a stark contrast in survival curves, with the urgent group showing significantly reduced survival probabilities over time (log-rank p < 0.0001).</span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Conclusion: Urgent TEER during acute heart failure hospitalization is associated with markedly higher mortality compared to elective procedures. These findings underscore the value of early MR detection and proactive intervention planning to avoid urgent settings, which are linked to poorer outcomes. Clinical compensate and discharge patients when possible, performing TEER electively in an ambulatory context can improve survival and reduce the clinical burden of acute heart failure. This evidence supports timely decision-making to enhance outcomes in high-risk MR patients.</span></span></p>
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