Heart failure survival rates higher in obese, overweight patients

Heart failure survival rates higher in obese, overweight patients
Heart failure survival rates higher in obese, overweight patients

HealthDay News -- Obese patients with heart-failure (HF) appear to live longer compared with patients of normal weight who develop the condition, results of a study published in the Journal of the American College of Cardiology suggests.

“It is unclear if the weight loss due to advanced HF leads to this paradoxical finding,” wrote Umair Khalid, MD, of Baylor College of Medicine in Houston, Texas, and colleagues.

To evaluate the prognostic impact of pre-morbid obesity in patient with heart failure, the investigators collected data on 1,487 patients with heart failure who took part in the Atherosclerosis Risk in Communities study. Among these patients, 35% were overweight and 47% were obese about four years before their diagnosis.

Over a decade of follow-up, 43% of the patients died. The researchers found that 38% of obese and 45% of overweight patients died over 10 years, compared with 51% of normal-weight patients. The difference held even if they also had other health issues such as diabetes or hypertension.

“Our results, for the first time, demonstrate that patients who were overweight or obese before HF development have lower mortality after HF diagnosis compared with normal BMI patients,” concluded the researchers.

References

  1. Khalid U et al. J Am Coll Cardiol. 2014; doi:10.1016/j.jacc.2014.09.067
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