CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

Cardiovascular Mortality After Type 1 and Type 2 Myocardial Infarction in Young Adults Stent fracture is associated with a higher mortality in patients with type-2 diabetes treated by implantation of a second-generation drug-eluting stent Comparison of Stent Expansion Guided by Optical Coherence Tomography Versus Intravascular Ultrasound: The ILUMIEN II Study (Observational Study of Optical Coherence Tomography [OCT] in Patients Undergoing Fractional Flow Reserve [FFR] and Percutaneous Coronary Intervention) Left Ventricular Assist Device as a Bridge to Recovery for Patients With Advanced Heart Failure Association of Parenteral Anticoagulation Therapy With Outcomes in Chinese Patients Undergoing Percutaneous Coronary Intervention for Non-ST-Segment Elevation Acute Coronary Syndrome LOX-1 in Atherosclerosis and Myocardial Ischemia: Biology, Genetics, and Modulation Randomized trial of complete versus lesion-only revascularization in patients undergoing primary percutaneous coronary intervention for STEMI and multivessel disease: the CvLPRIT trial Defining Staged Procedures for Percutaneous Coronary Intervention Trials A Guidance Document Interval From Initiation of Prasugrel to Coronary Angiography in Patients With Non–ST-Segment Elevation Myocardial Infarction Impact of Off-Hours Versus On-Hours Primary Percutaneous Coronary Intervention on Myocardial Damage and Clinical Outcomes in ST-Segment Elevation Myocardial Infarction

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.