CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

Transseptal puncture versus patent foramen ovale or atrial septal defect access for left atrial appendage closure Ablation Versus Drug Therapy for Atrial Fibrillation in Heart Failure Results From the CABANA Trial Thirty-Day Outcomes Following Transfemoral Transseptal Transcatheter Mitral Valve Replacement: Intrepid TMVR Early Feasibility Study Results MITRA-FR vs. COAPT: Lessons from two trials with diametrically opposed results Percutaneous Left Atrial Appendage Occlusion for Patients in Atrial Fibrillation Suboptimal for Warfarin Therapy: 5-year Results of the PLAATO (Percutaneous Left Atrial Appendage Transcatheter Occlusion) Study Current Status and Future Prospects of Transcatheter Mitral Valve Replacement: JACC State-of-the-Art Review Systematic Review and Network Meta‐Analysis Comparing Bifurcation Techniques for Percutaneous Coronary Intervention The management of secondary mitral regurgitation in patients with heart failure: a joint position statement from the Heart Failure Association (HFA), European Association of Cardiovascular Imaging (EACVI), European Heart Rhythm Association (EHRA), and European Association of Percutaneous Cardiovascular Interventions (EAPCI) of the ESC 2015 ACC/HRS/SCAI Left Atrial Appendage Occlusion Device Societal Overview Prospective Evaluation of Transseptal TMVR for Failed Surgical Bioprostheses: MITRAL Trial Valve-in-Valve Arm 1-Year Outcomes

Clinical Trial2018 May 22. [Epub ahead of print]

JOURNAL:Chest. Article Link

The association between body mass index and obesity with survival in pulmonary arterial hypertension

Weatherald J, Huertas A, Boucly A et al. Keywords: body mass index; obesity; prognosis; pulmonary arterial hypertension; survival

ABSTRACT


BACKGROUNDAn obesity paradox, wherein obese patients have lower mortality, has been described in cardiopulmonary diseases, including pulmonary arterial hypertension (PAH). Our objective was to determine whether obesity and body mass index (BMI) are associated with mortality in patients with PAH.


METHODS - We assessed incident patients with idiopathic, drug-induced, and heritable PAH from the French PAH Registry. Cox regression and Kaplan-Meier analysis were used to assess the association between BMI and obesity with all-cause mortality.

RESULTS - Of 1255 patients included, 30% were obese. A higher proportion of females (65.1% vs 53.4%, p<0.01), drug-induced PAH (28.9% vs 9.2%, p<0.01), systemic hypertension, diabetes, and hypothyroidism were present in the obese group. More obese patients were in New York Heart Association class III (66.4% vs. 57.1%), fewer were class IV (11.8% vs 16.9%) (p<0.01), and 6-minute walk distance was lower (276±121 vs 324±146, p<0.01). Right atrial pressure, pulmonary wedge pressure and cardiac index were higher while pulmonary vascular resistance was lower in obese patients. Neither BMI (HR 0.99, 95%CI 0.97-1.01, p=0.41) nor obesity (HR 1.0, 95%CI 0.99-1.01, p=0.46) were associated with mortality in multivariable analyses. There was a significant interaction between age and obesity such that mortality increased among morbidly obese patients under 65 years old (HR 3.01, 95%CI 1.56-5.79, p=0.001).

CONCLUSIONS - Obesity was not associated with mortality in the overall population, but there was an age-obesity interaction with increased mortality among young morbidly obese patients. These results have implications for active weight management in younger morbidly obese patients who are otherwise candidates for lung transplantation.

Copyright © 2018. Published by Elsevier Inc.