Critical potential of early cardiac surgery for infective endocarditis with cardio-embolic strokes.

Background: Early cardiac surgery may have a trade-off between stabilized hemodynamics with controlled infection and a risk of peri-operative death in patients with infective endocarditis (IE) complicated with cardio-embolic strokes.

Methods: We retrospectively studied clinical characteristics and outcomes in 68 consecutive patients with IE (mean age, 58±3years, 62% male) who admitted in our institute during June 2013 and August 2015.

Results: Cardio-embolic strokes were noted in 37% of patients (n=25) with IE and overall in-hospital mortality was 4 times higher in IE with cardio-embolic strokes than IE with an absence of strokes (n=43) (20% vs. 4.7%, p=0.045). Bacteremia of Staphylococcus aureus (p=0.021) and a complication of cardio-embolic strokes (p=0.031) were independently associated with in-hospital death in those with IE. However, in-hospital mortality was quite low in 19 with early cardiac surgery compared with 6 with conventional treatment in those with cardio-embolic strokes (11% vs. 50%, p=0.035). Multivariate logistic analysis demonstrated that lack of early cardiac surgery (p=0.014), a complication of cerebral hemorrhage (p=0.002), and a presence of refractory heart failure (p=0.047) were independently associated with in-hospital death in those with IE complicated with cardio-embolic strokes.

Conclusion: Early cardiac surgery may provide clinical advantages overcoming peri-operative risks in those with IE complicated with cardio-embolic strokes.