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  • Title: Rehospitalization and resource use after inpatient admission for extracorporeal life support in the United States.
    Author: Sanaiha Y, Kavianpour B, Mardock A, Khoury H, Downey P, Rudasill S, Benharash P.
    Journal: Surgery; 2019 Nov; 166(5):829-834. PubMed ID: 31277884.
    Abstract:
    BACKGROUND: With increasing dissemination and improved survival after extracorporeal life support, also called extracorporeal membrane oxygenation, the decrease in readmissions after hospitalization involving extracorporeal life support is an emerging priority. The present study aimed to identify predictors of early readmission after extracorporeal life support at a national level. METHODS: This was a retrospective cohort study using the Nationwide Readmissions Database. All patients ≥18 years who underwent extracorporeal life support from 2010 to 2015 were identified. Patients were stratified into the following categories of extracorporeal life support: postcardiotomy, primary cardiogenic shock, cardiopulmonary failure, respiratory failure, transplantation, and miscellaneous. The primary outcome of the study was the rate of 90-day rehospitalization after extracorporeal life support admission. A multivariable logistic regression model was developed to predict the odds of unplanned 90-day readmission. Kaplan-Meier analyses were also performed. RESULTS: An estimated 18,748 patients received extracorporeal life support with overall mortality of 50.2%. Of the patients who survived hospitalization, 30.2% were discharged to a skilled nursing facility, and 21.1% were readmitted within 90 days after discharge. After adjusting for patient and hospital characteristics, cardiogenic shock was associated with the greatest odds of mortality (adjusted odds ratio 1.6; 95% confidence interval, 1.09-1.46; C-statistic, 0.64). The cohort with respiratory failure had decreased odds of readmission (adjusted odds ratio 0.76; 95% confidence interval, 0.58-0.99). Discharge to skilled nursing facility (adjusted odds ratio 1.64; 95% confidence interval, 1.36-1.97) was independently associated with readmission. Cardiac and respiratory-related readmissions comprised the majority of unplanned 90-day rehospitalizations. CONCLUSION: In this large analysis of readmissions after extracorporeal life support in adults, 21% of extracorporeal life support survivors were rehospitalized within 90 days of discharge. Disposition to a skilled nursing facility, but not advanced age nor female sex, was associated with readmission.
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