SynthesisBMC cardiovascular disorders2025
Mortality after urgent versus elective transcatheter aortic valve replacement: a systematic review and meta-analysis using reconstructed individual patient data from Kaplan-Meier curves.
Synthesis in BMC cardiovascular disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundUrgent transcatheter aortic valve replacement (TAVR), performed during unplanned hospitalizations, is linked to worse outcomes compared with elective TAVR. However, temporal trends in mortality remains poorly understood. This study aimed to compare survival after urgent versus elective TAVR using a reconstructed individual patient data (IPD) meta-analysis.
methodsPubMed, Embase, and Scopus were searched through August 2025. Studies reporting Kaplan-Meier (KM) survival curves for urgent versus elective TAVR were included. Survival data were digitally extracted from published KM curves, and IPD were reconstructed algorithmically using a two-stage approach. Kaplan-Meier curves and Cox frailty models estimated survival and hazard ratios (HRs). Landmark analysis at one-year post-procedure and restricted mean survival time (RMST) were also employed to compare survival.
resultsEleven studies including 77,108 patients were identified. Kaplan-Meier curves were available for 76,108 patients (urgent: 5,683; elective: 71,425) and used for reconstructed IPD analysis. Urgent TAVR was associated with higher early mortality (HR 1.83, 95% CI: 1.73-1.93; p < 0.001), with convergence beyond one year (HR 1.01, 95% CI: 0.84-1.22; p = 0.83). RMST analysis demonstrated a 6.5-month overall survival advantage in favor of elective TAVR (p = 0.001).
conclusionsUrgent TAVR is associated with significantly increased early mortality compared with elective TAVR. These findings highlight the prognostic implications of procedural timing and support early referral for elective intervention in patients with severe AS.
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