期刊
CLINICAL TRANSPLANTATION
卷 35, 期 3, 页码 -出版社
WILEY
DOI: 10.1111/ctr.14187
关键词
cardiac allograft vasculopathy; heart transplantation; obesity; rejection
The study analyzed the impact of weight gain after heart transplantation on the development of cardiovascular disease, finding that weight gain, mainly contributed by fat mass, is associated with increased risk of cardiac allograft vasculopathy and rejection. Follow-up should focus on weight gain and preventive measures.
OBJECTIVE Obesity and overweight are associated with an increased risk for cardiovascular disease. Since fat mass (FM) and fat-free mass (FFM) both contribute to total body weight (TBW), we characterized the post-heart transplantation (HT) change in TBW and its implications for outcomes. METHODS Post-HT changes in TBW, FM, and FFM were reviewed for 211 HT patients assessed during 1997-2017. Endpoints included cardiac allograft vasculopathy (CAV) and rejection. RESULTS Median TBW increased by 7.3% at 1 year, with a significant rise in the obese category (28% vs. 13%, p < 0.001) and with FM versus FFM making the main contribution (23% vs. 3%, p < 0.001). When patients were divided according to median TBW change (high vs. low), Kaplan-Meier analysis showed that 10-year freedom from CAV (log-rank p < 0.005) and rejection (log-rank p < 0.01) was significantly higher for the low TBW change group. Consistently, multivariable analyses showed that the high group was independently associated with significant 3.5-fold and 4.2-fold increased risks for CAV (95% CI 1.4-8.7, p = 0.01) and rejection (95% CI 1.2-15.4, p = 0.03), respectively. CONCLUSIONS Weight gain, contributed mostly by FM, is independently associated with an increased risk for CAV and rejection. Follow-up emphasis should be placed on weight gain and preventative measures.
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