期刊
ASAIO JOURNAL
卷 69, 期 11, 页码 1025-1030出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MAT.0000000000002023
关键词
pulmonary vasodilators; prostacyclins; pediatrics; ventricular assist device; pulmonary hypertension
This study reviewed the use of prostacyclin therapy in pediatric patients with high PVR on VAD support. The results showed that prostacyclins can effectively lower pulmonary vascular resistance, improve hemodynamic parameters, and increase the proportion of patients surviving to transplant in this high-risk cohort.
Pediatric precapillary pulmonary hypertension can develop in response to systemic atrial hypertension. Systemic atrial decompression following ventricular assist device (VAD) implantation may not sufficiently lower pulmonary vascular resistance (PVR) to consider heart transplant candidacy. Prostacyclins have been used in adult VAD patients with success, but pediatric data on safety and efficacy in this population are limited. We sought to describe our center's experience to show its safety and to present our current protocol for perioperative use. We reviewed our use of prostacyclin therapy in pediatric patients on VAD support with high PVR from 2016 to 2021. Of the 17 patients who met inclusion, 12 survived to transplant and 1 is alive with VAD in situ. All patients survived posttransplant. With continuous intravenous (IV) epoprostenol or treprostinil therapy, there were no bleeding complications or worsening of end-organ function. A significant reduction was observed in vasoactive inotropic scores by 49% in the first 24 hours post-prostacyclin initiation. The proportion of patients surviving to transplant in this high-risk cohort is favorable. In conclusion, prostacyclins may be safe to use in patients with elevated PVR as part of their VAD and transplant course and may provide a transplant option in those otherwise not candidates.
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