ST-Segment Elevation Myocardial Infarction Following Transcatheter Aortic Valve Replacement.

Faroux, Laurent; Lhermusier, Thibault; Vincent, Flavien; Nombela-Franco, Luis; Tchétché, Didier; Barbanti, Marco; Abdel-Wahab, Mohamed; Windecker, Stephan; Auffret, Vincent; Campanha-Borges, Diego Carter; Fischer, Quentin; Muñoz-Garcia, Erika; Trillo-Nouche, Ramiro; Jorgensen, Troels; Serra, Vicens; Toggweiler, Stefan; Tarantini, Giuseppe; Saia, Francesco; Durand, Eric; Donaint, Pierre; ... (2021). ST-Segment Elevation Myocardial Infarction Following Transcatheter Aortic Valve Replacement. Journal of the American College of Cardiology, 77(17), pp. 2187-2199. Elsevier 10.1016/j.jacc.2021.03.014

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BACKGROUND

Among patients with acute coronary syndrome following transcatheter aortic valve replacement (TAVR), those presenting with ST-segment elevation myocardial infarction (STEMI) are at highest risk.

OBJECTIVES

The goal of this study was to determine the clinical characteristics, management, and outcomes of STEMI after TAVR.

METHODS

This was a multicenter study including 118 patients presenting with STEMI at a median of 255 days (interquartile range: 9 to 680 days) after TAVR. Procedural features of STEMI after TAVR managed with primary percutaneous coronary intervention (PCI) were compared with all-comer STEMI: 439 non-TAVR patients who had primary PCI within the 2 weeks before and after each post-TAVR STEMI case in 5 participating centers from different countries.

RESULTS

Median door-to-balloon time was higher in TAVR patients (40 min [interquartile range: 25 to 57 min] vs. 30 min [interquartile range: 25 to 35 min]; p = 0.003). Procedural time, fluoroscopy time, dose-area product, and contrast volume were also higher in TAVR patients (p < 0.01 for all). PCI failure occurred more frequently in patients with previous TAVR (16.5% vs. 3.9%; p < 0.001), including 5 patients in whom the culprit lesion was not revascularized owing to coronary ostia cannulation failure. In-hospital and late (median of 7 months [interquartile range: 1 to 21 months]) mortality rates were 25.4% and 42.4%, respectively (20.6% and 38.2% in primary PCI patients), and estimated glomerular filtration rate <60 ml/min (hazard ratio [HR]: 3.02; 95% confidence interval [CI]: 1.42 to 6.43; p = 0.004), Killip class ≥2 (HR: 2.74; 95% CI: 1.37 to 5.49; p = 0.004), and PCI failure (HR: 3.23; 95% CI: 1.42 to 7.31; p = 0.005) determined an increased risk.

CONCLUSIONS

STEMI after TAVR was associated with very high in-hospital and mid-term mortality. Longer door-to-balloon times and a higher PCI failure rate were observed in TAVR patients, partially due to coronary access issues specific to the TAVR population, and this was associated with poorer outcomes.

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