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The effect of hospital-associated SARS-CoV-2 infections in cardiac surgery patients remains poorly investigated, and current data are limited to small case series with conflicting results.A multicenter European collaboration was organized to analyze the outcomes of patients who tested positive with hospital-associated SARS-CoV-2 infection after cardiac surgery. The study investigators hypothesized that early infection could be associated with worse postoperative outcomes; hence 2 groups were considered: (1) an early hospital-associated SARS-CoV-2 infection group comprising patients who had a positive molecular test result ≤7 days after surgery, with or without symptoms; and (2) a late hospital-associated SARS-CoV-2 infection group comprising patients whose test positivity occurred7 days after surgery, with or without symptoms. The primary outcome was 30-day mortality. Secondary outcomes included all-cause mortality or morbidity at early follow-up and SARS-CoV-2-related hospital readmission.A total of 87 patients were included in the study. Of those, 30 were in the early group and 57 in the late group. Overall, 30-day mortality was 8%, and in-hospital mortality was 11.5%. The reintubation rate was 11.4%. Early infection was significantly associated with higher mortality (adjusted OR, 26.6; 95% CI, 2, 352.6; P.01) when compared with the late group. At 6-month follow-up, survival probability was also significantly higher in the late infection group: 91% (95% CI, 83%, 98%) vs 75% (95% CI, 61%, 93%) in the early infection group (P = .036). Two patients experienced COVID-19-related rehospitalization.In this multicenter analysis, hospital-associated SARS-CoV-2 infection resulted in higher than expected postoperative mortality after cardiac surgery, especially in the early infection group. |
