Abstract 19531: Impact of Bariatric Surgery on Quality of Life, Functional Capacity, and Symptoms in Patients with Heart Failure
Introduction: Obesity is a well-established risk factor for heart failure (HF), but the benefit of weight loss in HF has not been well documented.
Hypothesis: In morbidly obese patients with established HF, bariatric surgery (BSx) improves quality of life, functional capacity and frequency of symptoms, compared to non-surgical treatment for obesity.
Methods: We reviewed the outcomes of 13 patients with HF undergoing BSx and 6 HF patients followed in our Nutrition Clinic. HF was defined by a clinical diagnosis of HF, imaging test showing an ejection fraction <50%, or echocardiographic evidence of grade II-IV diastolic dysfunction. A survey assessed overall quality of life at baseline and at follow-up by using a validated single item from the Linear Analogue Self-Assessment Questionnaire (from 0 to 10 – worst to best), the frequency of HF symptoms using a Likert scale from 1 (never) to 5 (always), and functional capacity using the Specific Activity Scale (class I to IV), a measure that parallels New York Heart Association classification.
Results: At baseline, mean age was 54±2 (38% males) in BSx patients and 63±3 (83% males) in non-operative patients; mean BMI was 53±3 kg/m2 and 42±4 kg/m2 (p=0.054), respectively. Each group was followed by 4.1 years. Weight changes at follow-up were 45.8±5.6 kg lost in the BSx group and 8.2±8.3 kg gained in controls (p<0.001). Changes in overall quality of life and HF symptoms are depicted in the Table. In regard to functional capacity, the number of BSx patients with a functional class I increased from 15% to 46% at follow-up, but differences were not statistically significant.
Conclusions: BSx induces marked weight loss and provides long-term improvements in quality of life and symptoms in morbidly obese patients with established HF.
- © 2010 by American Heart Association, Inc.