• Robin V Horak, Peta M Alexander, Rambod Amirnovin, Margaret J Klein, Ronald A Bronicki, Barry P Markovitz, Mary E McBride, Adrienne G Randolph, and Ravi R Thiagarajan.
• Department of Anesthesiology Critical Care Medicine, Children's Hospital Los Angeles, Los Angeles, CA.
• Pediatr Crit Care Me. 2020 Sep 1; 21 (9): 797-803.

ObjectivesTo assess the distribution, service delivery, and staffing of pediatric cardiac intensive care in the United States.DesignBased on a 2016 national PICU survey, and verified through online searching and clinician networking, medical centers were identified with a separate cardiac ICU or mixed ICU. These centers were sent a structured web-based survey up to four times, with follow-up by mail and phone for nonresponders.SettingCardiac ICUs were defined as specialized units, specifically for the treatment of children with life-threatening primary cardiac conditions. Mixed ICUs were defined as separate units, specifically for the treatment of children with life-threatening conditions, including primary cardiac disease.ParticipantsCardiac ICU or mixed ICU physician medical directors or designees.Measurements And Main ResultsOne-hundred twenty ICUs were identified: 61 (51%) were mixed ICUs and 59 (49%) were cardiac ICUs. Seventy five percent of institutions at least sometimes used a neonatal ICU prior to surgery. The most common temporary cardiac support beyond extracorporeal membrane oxygenation was a centrifugal pump such as Centrimag. Durable cardiac support devices were far more common in separate cardiac ICUs (84% vs 20%; p < 0.0001). Significantly less availability of electrophysiology, heart failure, and cardiac anesthesia consultation was available in mixed ICUs (p = 0.0003, p < 0.0001, p = 0.042 respectively). ICU attending physicians were in-house day and night 98% of the time in mixed ICUs and 87% of the time in cardiac ICUs. Nurse practitioners were consistent front-line providers in the ICUs caring for children with primary cardiac disease staffing 88% of cardiac ICUs and 56% of mixed ICUs. Mixed ICUs were more commonly staffed with pediatric residents, and critical care fellows were found in more cardiac ICUs (83% vs 77%; p < 0.0001).ConclusionsMixed ICUs and cardiac ICUs have statistically different staffing models and available services. More evaluation is needed to understand how this may impact patient outcomes and training programs of physicians and nurses.

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