Journal
ANNALS OF THORACIC SURGERY
Volume 110, Issue 6, Pages 1819-1831Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.athoracsur.2020.09.003
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Funding
- Society of Thoracic Surgeons
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Background. The Pediatric Interagency Registry for Mechanical Circulatory Support (Pedimacs), originally a National Institutes of Health-sponsored U.S. database, provides a platform to understand the population of children supported with ventricular assist devices (VADs) during this time of increasing numbers, new devices, expanding indications, and improved outcomes. Methods. Between September 19, 2012, and December 31, 2019, 44 hospitals implanted 1031 devices in 856 patients under 19 years of age. Results. Overall, diagnosis was cardiomyopathy in 497 (58%) patients, congenital heart disease (CHD) in 216 (25%), myocarditis in 85 (10%), and other in 58 (7%). Positive outcome (alive on device or bridge to transplantation and recovery) occurred in 82% at 6 months. The patient cohort for implantable continuous (IC) pumps (n = 365) (age 13.2 +/- 3.9 years, 18% Interagency Registry for Mechanically Assisted Circulatory Support [Intermacs] profile 1, 23% intubated at implantation, 16% with CHD) was significantly different from the paracorporeal continuous (PC) pump cohort (n = 212) (age 3.6 +/- 4.9 years, 46% Intermacs profile 1, 81% intubated, 42% CHD) and the paracorporeal pulsatile (PP) pump cohort (n = 230) (age 2.7 +/- 3.5 years, 31% Intermacs profile 1, 76% intubated, 26% CHD). Consistent with their cohort composition, positive outcomes at 6 months based on device type were the following: IC, 92%; PC, 68%; and PP, 81%. The incidence of cerebrovascular accidents in the IC, PC, and PP cohorts was 7%, 14%, and 15%, respectively. Conclusions. IC VADs, the most common VAD type placed in children, are associated with improved outcomes compared with PP and PC devices, though PP and PC devices are limited to supporting our most challenging patients. Noteworthy, the incidence of cerebrovascular accidents for pediatric VADs has significantly decreased and is now 11% overall. This report demonstrates again that although often attributed to age, size, or device type, much of the burden in mortality and adverse events is correlated to the patient's overall state at VAD implantation. (C) 2020 by The Society of Thoracic Surgeons
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