Higher β-blocker dose linked to lower mortality risk

November 21, 2017

(HealthDay)—An increased β-blocker dose is associated with a greater prognostic advantage in patients with chronic heart failure (CHF) and diabetes than in those with CHF but no diabetes, according to a study published online Oct. 25 in Diabetes Care.

Klaus K. Witte, M.D., from the University of Leeds in the United Kingdom, and colleagues assessed the impact of β-blockers and angiotensin-converting enzyme inhibitors (ACEIs) on mortality in CHF patients with and without in a . They recruited 1,797 patients with CHF from 2006 to 2014, and mean follow-up was four years.

The researchers found that patients with diabetes were prescribed larger doses of β-blockers and ACEIs compared to patients without diabetes. Lower mortality was seen with increasing β-blocker dose in both patients with diabetes (8.9 percent per mg/day) and without diabetes (3.5 percent per mg/day), although the effect was greater in people with diabetes (interaction P = 0.027). Similarly, increasing ACEI dose was associated with lower mortality in both patients with diabetes (5.9 percent per mg/day) and without diabetes (5.1 percent per mg/day), with similar effect size in the groups (interaction P = 0.76).

"Increasing β-blocker dose is associated with a greater prognostic advantage in CHF patients with diabetes than without diabetes," the authors write.

Two authors disclosed financial ties to the pharmaceutical and medical device industries.

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