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Am Fam Physician. 2004;70(2):261

to the editor: In the American Family Physician article, “Combination Therapy with ACE Inhibitors and Angiotensin-Receptor Blockers in Heart Failure,”1 the authors state that adding an angiotensin-receptor blocker (ARB) to angiotensin-converting enzyme (ACE) inhibitor therapy for heart failure does not reduce mortality compared with treatment with an ACE inhibitor only. However, when the addition of valsartan to “optimal” pharmacologic therapy for heart failure was tested in the Valsartan Heart Failure Trial (Val-HeFT),2 researchers found that mortality rates were higher in patients who were already receiving an ACE inhibitor and a beta blocker.2,3 Thus, patients who were already receiving the standard recommended heart failure therapy (an ACE inhibitor plus a beta blocker4) actually fared worse with the addition of valsartan. In the Candesartan in Heart Failure: Assessment of Mortality and Morbidity (CHARM)-Added study,5 the investigators report that the addition of candesartan to combination therapy with an ACE inhibitor and a beta blocker reduced mortality; however, the reduction was not statistically significant.5

Thus, the addition of ARBs to therapy with ACE inhibitors plus beta blockers does not decrease mortality. Further, it must be recognized that there is a risk of this combination increasing mortality, making it nonbeneficial and potentially harmful.

editor’s note: This letter was sent to the authors of “Combination Therapy with ACE Inhibitors and Angiotensin-Receptor Blockers in Heart Failure,” who declined to reply.

Email letter submissions to afplet@aafp.org. Letters should be fewer than 400 words and limited to six references, one table or figure, and three authors. Letters submitted for publication in AFP must not be submitted to any other publication. Letters may be edited to meet style and space requirements.

This series is coordinated by Kenny Lin, MD, MPH, deputy editor.

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