Purpose: Postoperative intensive care unit (ICU) stay after cardiac surgeries has been extensively studied, but little attention has been given to ICU stay following transcatheter aortic valve replacement (TAVR). This study examined ICU stay after TAVR.
Methods: Two hundred and forty-five patients who underwent TAVR between April 2010 and October 2016 were studied retrospectively. We investigated the status of ICU stay, the predictors of prolonged ICU stay (PICUS), and its impact on short- and long-term outcomes. Prolonged ICU stay was defined as post-TAVR ICU stay longer than 2 days (day of TAVR + 1 day).
Results: Length of ICU stay was 2.6 ± 4.9 days, and PICUS was identified in 14.7% of the patients. The predominant reason for PICUS was congestive heart failure or circulatory failure (41.7%). Pulmonary dysfunction and nontransfemoral approach were independent predictors of PICUS (pulmonary dysfunction: odds ratio = 2.64, 95% confidence interval [CI]: 1.05-7.35; nontransfemoral approach: odds ratio = 2.81, 95% CI: 1.15-6.89). Prolonged ICU stay was associated with higher rate of 30-day combined end point (PICUS vs non-PICUS: 44.4% vs 3.3%, P < .0001), longer postoperative hospital stay (49.9 ± 141.9 days vs 12.0 ± 6.0 days, P < .0001), and lower rate of discharge home (77.8% vs 95.2%, P = .0002). Patients with PICUS had worse long-term survival (P < .0001), and PICUS was a predictor of mortality (hazard ratio: 4.21, 95% CI: 2.09-8.22).
Conclusion: Prolonged ICU stay following TAVR was found in 14.7%, and pulmonary dysfunction and nontransfemoral approach were associated with PICUS. Short- and long-term prognoses were worse in patients with PICUS than those without.
Keywords: intensive care unit; transcatheter aortic valve implantation; transcatheter aortic valve replacement.