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Circulation. 2010 Sep 14;122(11 Suppl):S17-22. doi: 10.1161/CIRCULATIONAHA.109.927665.

Impact of early surgery on embolic events in patients with infective endocarditis.

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1
Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea.

Abstract

BACKGROUND:

Surgical indications to prevent systemic embolism in infective endocarditis (IE) remain controversial. We sought to compare clinical outcomes of early surgery with conventional treatment in IE patients with embolic indications only.

METHODS AND RESULTS:

From 1998 to 2006, we prospectively enrolled 132 consecutive patients (86 men; age, 49±17 years) with definite IE. Patients were included if they had a left-sided native valve endocarditis with vegetation. The choice of early surgery or conventional treatment was at the discretion of attending physician. Early surgery was performed on 64 patients (OP group) within 7 days of diagnosis, and conventional management was chosen for 68 patients (CONV group). The OP group had larger vegetations and a higher percentage of patients with severe valvular disease (88% versus 62%, P=0.001). During initial hospitalization, there were no embolic events and 2 in-hospital deaths in the OP group and 14 embolic events and 2 in-hospital deaths in the CONV group. During a median follow-up of 1402 days, there were 2 cardiovascular deaths, 2 embolic events, and 1 recurrence of IE in the CONV group, and 1 cardiovascular death and 2 embolic events in the OP group. The 5-year event-free survival rate was significantly higher in the OP group (93±3%) than in the CONV group (73±5%, P=0.0016). For 44 propensity score-matched pairs, the OP group had a lower event rate (hazard ratio, 0.18; P=0.007).

CONCLUSIONS:

Compared with conventional treatment, an early surgery strategy is associated with improved clinical outcomes by effectively decreasing systemic embolism in patients with IE.

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