Procedural volume and outcomes in patients undergoing VA-ECMO support
- PMID: 32503646
- PMCID: PMC7275456
- DOI: 10.1186/s13054-020-03016-z
Procedural volume and outcomes in patients undergoing VA-ECMO support
Abstract
Background: Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is increasingly used in patients with critical cardiopulmonary failure. To investigate the association between hospital VA-ECMO procedure volume and outcomes in a large, nationwide registry.
Methods: By using administrative data from the German Federal Health Monitoring System, we analyzed all VA-ECMO procedures performed in Germany from 2013 to 2016 regarding the association of procedural volumes with outcomes and complications.
Results: During the study period, 10,207 VA-ECMO procedures were performed; mean age was 61 years, 43.4% had prior CPR, and 71.2% were male patients. Acute coronary syndrome was the primary diagnosis for VA-ECMO implantation (n = 6202, 60.8%). The majority of implantations (n = 5421) were performed at hospitals in the lowest volume category (≤ 50 implantations per year). There was a significant association between annualized volume of VA-ECMO procedures and 30-day in-hospital mortality for centers with lower vs. higher volume per year. Multivariable logistic regression showed an increased 30-day in-hospital mortality at hospitals with the lowest volume category (adjusted odds ratio 1.13, 95% confidence interval [CI] 1.01-1.27, p = 0.034). Similarly, higher likelihood for complications was observed at hospitals with lower vs. higher annual VA-ECMO volume (adjusted odds ratio 1.46, 95% CI 1.29-1.66, p = 0.001).
Conclusions: In this analysis of more than 10,000 VA-ECMO procedures for cardiogenic shock, the majority of implantations were performed at hospitals with the lowest annual volume. Thirty-day in-hospital mortality and likelihood for complications were higher at hospitals with the lowest annual VA-ECMO volume.
Keywords: Complications; Outcomes; Procedure volume; VA-ECMO; Venoarterial extracorporeal membrane oxygenation.
Conflict of interest statement
The authors designed the study, analyzed the data, vouch for the data, wrote the paper, and decided to publish. Analysis provided by the Research Data Center of the Federal Bureau of Statistics, Wiesbaden, Germany. All authors have read and approved the manuscript. The manuscript and its contents have not been published previously and are not being considered for publications elsewhere in whole or in part in any language, including publicly accessible web sites or e-print servers.
Dr. Twerenbold received research support from the Swiss National Science Foundation (P300PB_167803), the University Hospital Basel, the University of Basel, and the Cardiovascular Research Foundation Basel, as well as speaker honoraria/consulting honoraria from Abbott, Brahms, Siemens, Singulex, and Roche.
Dr. Westermann received honorary from Astra-Zeneca, Bayer, BöhringerIngelheim, Berlin-Chemie, and Novartis.
Dr. Schrage received speaker’s fee from AstraZeneca and is currently funded by the German Research Foundation.
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