Relationships between right ventricular function, body composition, and prognosis in advanced heart failure
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
23916933
DOI
10.1016/j.jacc.2013.06.046
PII: S0735-1097(13)02831-3
Knihovny.cz E-zdroje
- Klíčová slova
- B-type natriuretic peptide, BMI, BNP, CI, DEXA, HF, HR, LV, RV, RVD, body composition, body mass index, cachexia, confidence interval, dual-energy X-ray absorptiometry, hazard ratio, heart failure, left ventricular, obesity paradox, right ventricular, right ventricular dysfunction, right ventricular function,
- MeSH
- adiponektin krev MeSH
- distribuce tělesného tuku MeSH
- dysfunkce pravé srdeční komory diagnostické zobrazování patofyziologie MeSH
- echokardiografie MeSH
- index tělesné hmotnosti MeSH
- kachexie patofyziologie MeSH
- lidé středního věku MeSH
- lidé MeSH
- následné studie MeSH
- natriuretický peptid typu B krev MeSH
- plicní hypertenze patofyziologie MeSH
- prognóza MeSH
- složení těla fyziologie MeSH
- srdeční frekvence fyziologie MeSH
- stupeň závažnosti nemoci MeSH
- systolické srdeční selhání mortalita patofyziologie MeSH
- věkové faktory MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- adiponektin MeSH
- natriuretický peptid typu B MeSH
OBJECTIVES: This study sought to examine the relationships between right ventricular (RV) function, body composition, and prognosis in patients with advanced heart failure (HF). BACKGROUND: Previous studies investigating HF-related cachexia have not examined the impact of RV function on body composition. We hypothesized that RV dysfunction is linked to weight loss, abnormal body composition, and worsened prognosis in advanced HF. METHODS: Subjects with advanced HF (n = 408) underwent prospective assessment of body composition (skinfold thickness, dual-energy X-ray absorptiometry), comprehensive echocardiography, and blood testing. Subjects were followed up for adverse events (defined as death, transplantation, or circulatory assist device). RESULTS: Subjects with RV dysfunction (51%) had lower body mass index, lower fat mass index, and were more likely to display cachexia (19%). The extent of RV dysfunction correlated with greater antecedent weight loss and a lower fat/lean body mass ratio. Over a median follow-up of 541 days, there were 150 events (37%). Risk of event was greater in subjects with RV dysfunction (hazard ratio: 3.09 [95% confidence interval (CI): 2.18 to 4.45]) and cachexia (hazard ratio: 2.90 [95% CI: 2.00 to 4.12]) in univariate and multivariate analyses. Increased body mass index was associated with a lower event rate (HR per kg/m(2): 0.92 [95% CI: 0.88 to 0.96]), and this protection was mediated by a higher fat mass (0.91 [95% CI: 0.87 to 0.96]) but not a fat-free mass index (0.97 [95% CI: 0.92 to 1.03]). CONCLUSIONS: RV dysfunction and cardiac cachexia often coexist, have additive adverse impact, and might be mechanistically interrelated. Wasting of fat but not of lean mass was predictive of adverse outcome, suggesting that fat loss is either a surrogate of enhanced catabolism or adipose tissue is cardioprotective in the context of HF.
Department of Cardiology Institute of Clinical and Experimental Medicine Prague Czech Republic
Division of Cardiovascular Diseases Department of Medicine Mayo Clinic Rochester Minnesota
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