Cost utility evaluation of extracorporeal membrane oxygenation as a bridge to transplant for children with end-stage heart failure due to dilated cardiomyopathy.

BACKGROUND: Extracorporeal membrane oxygenation (ECMO) and cardiac transplantation are recognized to be expensive. METHODS: We performed a cost utility evaluation with a decision model approach, including 75 children with dilated cardiomyopathy. A cohort of patients with end stage heart failure who were offered ECMO bridging was compared with a similar cohort offered only conventional intensive care. Outcome was measured in cost per quality adjusted life year (QALY). RESULTS: Median follow-up was 4.39 years (interquartile range, 1.83-5.74 years), during which 50 children underwent transplantation, 16 had a period of recovery, and 25 died. ECMO bridging was highly effective (hazard ratio, 0.181; 95% confidence interval, 0.067-0.489; p = 0.001) but exceeded conventional criteria for cost-effectiveness. The reference incremental cost-effectiveness ratio (ICER) was pound65,645 per QALY and pound54,284 per life-year gained. Average life expectancy rose from 6.78 to 9.79 years and costs from pound146,398 to pound309,599 per patient with ECMO bridging. The ICER was sensitive to ECMO cost, the long-term transplant survival rate, and quality of life in transplant recipients. CONCLUSIONS: ECMO bridging is effective but expensive. The eligible target population is small, nationally, positively influencing affordability. We strongly support our national policy of mechanical bridge to transplant for suitable children in end stage heart failure. Cost effectiveness could be optimized by: 1) increased availability of organ donors, 2) reduction in mechanical support costs possibly by alternate devices and 3) inclusion of patients most likely to benefit.

Adverse family social circumstances and outcome in pediatric cardiac transplant recipients at a UK center.

BACKGROUND: Socioeconomic disadvantage is known to prejudice certain health-related outcomes. METHODS: Our objective was to establish whether adverse social circumstances are linked to rejection events after pediatric cardiac transplant in a UK context. A retrospective observational cohort study was conducted including 78 of 85 children who underwent cardiac transplantation between 2001 and 2005. RESULTS: Family social circumstances included: 36 (46%) unemployed/manual occupation; 29 (37%) non-home owners; 16 (21%) single parents; income support in 31 (40%); and 2 or more further children in 34 (44%). Adverse social risk factors were evenly distributed throughout the cohort in terms of other demographic variables. The rate for a first rejection event was 0.10 (95% confidence interval [CI] 0.07 to 0.15) episode per patient per year, and for late rejection was 0.04 (95% CI 0.02 to 0.07) episode per patient per year. There was some evidence that children from non-home-owning families (hazard ratio [HR] 0.31, 95% CI 0.11 to 0.82, p = 0.02) and those on income support (HR 0.43, 95% CI 0.18 to 1.04, p = 0.06) had reduced risk of early/all first-time rejection episodes. Other social risk factors were unrelated to early rejection. No relationship was found between any social factor and late rejection episodes or low immunosuppression levels at clinic visits 3, 6 or 12 months post-transplant. CONCLUSIONS: Children from more adverse circumstances were not predisposed to rejection episodes. To date, there is no evidence to support a policy of declining children for transplantation on psychosocial grounds in the UK.