Surgical Treatment of Patients With Infective Endocarditis After Transcatheter Aortic Valve Implantation.

Mangner, Norman; Val, David Del; Abdel-Wahab, Mohamed; Crusius, Lisa; Durand, Eric; Ihlemann, Nikolaj; Urena, Marina; Pellegrini, Costanza; Giannini, Francesco; Gasior, Tomasz; Wojakowski, Wojtek; Landt, Martin; Auffret, Vincent; Sinning, Jan Malte; Cheema, Asim N; Nombela-Franco, Luis; Chamandi, Chekrallah; Campelo-Parada, Francisco; Munoz-Garcia, Erika; Herrmann, Howard C; ... (2022). Surgical Treatment of Patients With Infective Endocarditis After Transcatheter Aortic Valve Implantation. Journal of the American College of Cardiology, 79(8), pp. 772-785. Elsevier 10.1016/j.jacc.2021.11.056

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BACKGROUND

The optimal treatment of patients developing infective endocarditis (IE) after transcatheter aortic valve implantation (TAVI) is uncertain.

OBJECTIVES

The goal of this study was to investigate the clinical characteristics and outcomes of patients with TAVI-IE treated with cardiac surgery and antibiotics (IE-CS) compared with patients treated with antibiotics alone (IE-AB).

METHODS

Crude and inverse probability of treatment weighting analyses were applied for the treatment effect of cardiac surgery vs medical therapy on 1-year all-cause mortality in patients with definite TAVI-IE. The study used data from the Infectious Endocarditis after TAVI International Registry.

RESULTS

Among 584 patients, 111 patients (19%) were treated with IE-CS and 473 patients (81%) with IE-AB. Compared with IE-AB, IE-CS was not associated with a lower in-hospital mortality (HRunadj: 0.85; 95% CI: 0.58-1.25) and 1-year all-cause mortality (HRunadj: 0.88; 95% CI: 0.64-1.22) in the crude cohort. After adjusting for selection and immortal time bias, IE-CS compared with IE-AB was also not associated with lower mortality rates for in-hospital mortality (HRadj: 0.92; 95% CI: 0.80-1.05) and 1-year all-cause mortality (HRadj: 0.95; 95% CI: 0.84-1.07). Results remained similar when patients with and without TAVI prosthesis involvement were analyzed separately. Predictors for in-hospital and 1-year all-cause mortality included logistic EuroSCORE I, Staphylococcus aureus, acute renal failure, persistent bacteremia, and septic shock.

CONCLUSIONS

In this registry, the majority of patients with TAVI-IE were treated with antibiotics alone. Cardiac surgery was not associated with an improved all-cause in-hospital or 1-year mortality. The high mortality of patients with TAVI-IE was strongly linked to patients' characteristics, pathogen, and IE-related complications.

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