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Ventricular assist device use in congenital heart disease with a comparison to heart transplant.

ABSTRACT: Despite advances in medical and surgical therapies, some children with congenital heart disease (CHD) are not able to be adequately treated or palliated, leading them to develop progressive heart failure. As these patients progress to end-stage heart failure they pose a unique set of challenges. Heart transplant remains the standard of care; the donor pool, however, remains limited. Following the experience from the adult realm, the pediatric ventricular assist device (VAD) has emerged as a valid treatment option as a bridge to transplant. Due to the infrequent necessity and the uniqueness of each case, the pediatric VAD in the CHD population remains a topic with limited information. Given the experience in the adult realm, we were tasked with reviewing pediatric VADs and their use in patients with CHD and comparing this therapy to heart transplantation when possible.

SUBMITTER: Miller JR

PROVIDER: S-EPMC4231823 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Ventricular assist device use in congenital heart disease with a comparison to heart transplant.

Miller Jacob R JR Eghtesady Pirooz P

Journal of comparative effectiveness research 20140901 5

Despite advances in medical and surgical therapies, some children with congenital heart disease (CHD) are not able to be adequately treated or palliated, leading them to develop progressive heart failure. As these patients progress to end-stage heart failure they pose a unique set of challenges. Heart transplant remains the standard of care; the donor pool, however, remains limited. Following the experience from the adult realm, the pediatric ventricular assist device (VAD) has emerged as a vali ...[more]

PMID: 25350804

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Project description:Preformed anti-human leukocyte antigen antibodies have been associated with prolonged wait times and increased mortality in orthotopic heart transplantation. We used United Network for Organ Sharing data to examine panel reactive antibody titers in patients bridged to transplant with left ventricular assist devices.This was a retrospective review of the United Network for Organ Sharing dataset for all patients bridged to orthotopic heart transplantation with a HeartMate II or HeartMate XVE (Thoratec Corp, Pleasanton, Calif) from January 2004 to December 2009. Patients were primarily stratified by device type and secondarily grouped for comparisons by high (>25%) versus low (0%) panel reactive antibody activity (class I and II). Outcomes included survival (30-day and 1-year), treated rejection in the year after orthotopic heart transplantation, and primary graft dysfunction. Cox proportional hazards regression examined 30-day and 1-year survival.A total of 871 patients (56.1%) received the HeartMate II device, and 673 patients (43.9%) received the HeartMate XVE device. Patients with high panel reactive antibody had longer duration on the wait list (205 days [interquartile range, 81-344] vs 124 days [interquartile range, 51-270], P = .01). High panel reactive antibody class II was more common in patients with the HeartMate XVE device (51/547 [9.3%] vs 42/777 [5.4%], P < .001). When the entire cohort was examined together, there was no 30-day or 1-year survival difference based on panel reactive antibody activity. Device type did not affect post-orthotopic heart transplantation survival, and panel reactive antibody activity was not associated with worse mortality in Cox regression. Although panel reactive antibody activity did not affect rejection in the year after orthotopic heart transplantation for either device type, high panel reactive antibody class II was associated with higher rates of primary graft dysfunction for both devices (P < .05).This is the largest modern study to examine the impact of detailed panel reactive antibody information in patients bridged to transplant. High panel reactive antibody levels do not affect drug-treated rejection episodes in the first year post-orthotopic heart transplantation; however, there is an associated higher rate of primary graft dysfunction, regardless of device type. Highly sensitized patients bridged to transplant experience excellent survival outcomes after orthotopic heart transplantation.

Project description:Background: Vasoplegic syndrome after orthotopic heart transplantation (OHT) or left ventricular assist device (LVAD) implantation is a rare but highly lethal syndrome with complex etiologies. The objective of this study was to assess if the preoperative use of sacubitril-valsartan combination is associated with an increased vasoplegic syndrome (VS) frequency after OHT or LVAD implantation and its relationship with 30-day mortality. Methods: A retrospective review of perioperative data, between January 2016 and December 2017, from 73 consecutive OHT and LVAD surgery adult patients at our institution was performed. VS was defined as normal cardiac output with persistent low systemic resistance requiring a norepinephrine intravenous perfusion > 0.5 µg/kg/min and the absence of sepsis or hemorrhagic shock within 48 h after surgery. Patients were all followed-up for adverse events and all-cause mortality at 30 days. Results: In our cohort of 73 patients (median age 51.7 years, 65% male patients), 25 (34%) patients developed VS. Twenty-two (30.1%) patients were on ARNI at the time of surgery, 31 (42.5%) were on other RAS blockers, 12 (16.4%) were on norepinephrine and 8 (11%) had no pre-operative drug. The pre-operative use of any vasoactive agent, was not significantly associated with VS (OR = 1.36; IC95% [0.78; 2.35]; p = 0.38). The pre-operative use of an ARNI compared to all other groups was not significantly associated with VS (OR = 2.0; IC95% [0.71; 5.62]; p = 0.19). The pre-operative use of an ARNI compared to other RAS blockers was also not significantly associated with VS (OR = 1.25; IC95% [0.37; 4.26]; p = 0.72). At 30 days, 18 (24.7%) patients had died. The pre-operative treatment with ARNI, or other RAS inhibitors was associated with a significantly lower rate of death compared to the absence of treatment (HR = 0.11; IC95% [0.02; 0.55]; p = 0.009 for ARNI and HR = 0.20; IC95% [0.06; 0.69]; p = 0.011 for other RASi). Conclusions: Preoperative use of sacubitril-valsartan was not significantly associated with development of vasoplegic syndrome in patients undergoing OHT or LVAD surgery. Furthermore, our data suggests a significant 30-day survival benefit with efficient renin-angiotensin blockade before surgery.

Dataset Information

Ventricular assist device use in congenital heart disease with a comparison to heart transplant.

Publications

Ventricular assist device use in congenital heart disease with a comparison to heart transplant.

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