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Ann Intern Med. 2019 Oct 1;171(7):505-513. doi: 10.7326/M19-0946.

To What Target Hemoglobin A1c Level Would You Treat This Patient With Type 2 Diabetes?: Grand Rounds Discussion From Beth Israel Deaconess Medical Center.

Author information

1
Beth Israel Deaconess Medical Center, Boston, Massachusetts (G.W.S., R.B.B.).
2
Massachusetts General Hospital, Boston, Massachusetts (D.M.N.).
3
University of Washington, Seattle, Washington (D.C.D.).

Abstract

In the United States, 9.4% of all adults-and 25% of those older than 65 years-have diabetes. Diabetes is the leading cause of blindness and end-stage renal disease and contributes to both microvascular and macrovascular complications. The management of patients with type 2 diabetes (T2D) is a common and important activity in primary care internal medicine practice. Measurement of hemoglobin A1c (HbA1c) provides an estimate of mean blood sugar levels and glycemic control. The optimal HbA1c target level among various persons with T2D is a subject of controversy. Guidelines regarding HbA1c targets have yielded differing recommendations. In 2018, the American College of Physicians (ACP) published a guideline on HbA1c targets for nonpregnant adults with T2D. In addition to a recommendation to individualize HbA1c target levels, the ACP proposed a level between 7% and 8% for most patients. The ACP also advised deintensification of therapy for patients who have an HbA1c level lower than 6.5% and avoidance of HbA1c-targeted treatment for patients with a life expectancy of less than 10 years. This guidance contrasts with a recommendation from the American Diabetes Association to aim for HbA1c levels less than 7% for many nonpregnant adults and to consider a target of 6.5% if it can be achieved safely. Here, 2 experts, a diabetologist and a general internist, discuss how to apply the divergent guideline recommendations to a patient with long-standing T2D and a current HbA1c level of 7.8%.

PMID:
31569249
DOI:
10.7326/M19-0946

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