Influence of Body Weight and Diabetes Mellitus in Patients With Pulmonary Hypertension.

Influence of Body Weight and Diabetes Mellitus in Patients With Pulmonary Hypertension.

Am J Cardiol. 2020 Aug 15;:

Authors: Trammell AW, Hemnes AR, Tseng V, Shah AJ, Phillips LS, Hart CM

Pulmonary hypertension (PH) is a complex condition that arises due to pulmonary vascular disease, heart disease, lung disease, chronic thromboembolism, or several rare causes. Regardless of underlying cause, PH increases mortality, yet there are no directed treatments for the most common forms of PH due to left heart or lung disease. Because metabolic factors have been implicated in the pathogenesis of PH, we used a large administrative cohort to assess diabetes and weight, potentially modifiable risk factors, on PH outcome. We analyzed 110,495 veterans diagnosed with PH from January 1, 2003 to September 30, 2015 in the Veterans Health Affairs system. Veterans with PH survived an average of 3.88 [IQR 3.85, 3.92] years after PH diagnosis. Diabetes occurred in 36% and increased risk of death by 31% (95% confidence interval 28% to 33%, multivariate adjusted). Higher body mass index was associated with lower mortality in a J-shaped pattern with highest risk in underweight and normal weight veterans. Improved survival in obesity has been referred to as the obesity paradox in heart failure and other diseases. These data show that lower weight and diabetes are strong risk factors for mortality in PH. Our results underscore the importance of systemic conditions on outcome in PH.

PMID: 32919617 [PubMed - as supplied by publisher]

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