- Book Chapter
- 10.1007/978-1-60327-043-4_16
Treatment of Hypertension in Type 2 Diabetes
- Jan 01, 2008
- David C Goff + 1 more +1
High blood pressure is a common coexisting condition in patients with type 2 diabetes mellitus, affecting over a third of adults with diabetes. The presence of high blood pressure increases the risk of numerous macro- and micro-vascular complications of diabetes, including cardiovascular disease, nephropathy, retinopathy, and possibly, neuropathy, and the association of blood pressure with complications extends into the blood pressure range usually considered normal in persons without diabetes. The relative increase in risk attributable to high blood pressure is comparable in persons with and without diabetes, but the combination of high baseline risk of complications in patients with diabetes and this relative risk generate a much larger absolute excess risk of high-blood-pressure-related complications in persons with diabetes than in those without. Clinical trial data have proven the benefits of blood pressure lowering therapy in patients with diabetes; however, the most appropriate goal for the treated blood pressure level is unknown. The clinical trial evidence clearly supports systolic blood pressure levels less than 150 mm Hg and diastolic blood pressure levels less than 80 mm Hg. Lower systolic blood pressure goals are supported by observational data. The relative benefits of various blood pressure lowering medications has received much attention and generated much controversy. Because most patients with diabetes will require triple drug therapy with a diuretic, ACE inhibitor (or angiotensin receptor blocker), and calcium channel blocker to achieve blood pressure control, this debate is largely academic. In patients with high blood pressure but not diabetes, the risk of developing diabetes may be reduced by ACE inhibitors, angiotensin receptor blockers and calcium channel blockers relative to diuretics and beta-blockers. Prevention of diabetes and high blood pressure remain important long-term public health goals; however, given the frequency and complications of high blood pressure in patients with diabetes, and the proven benefits of blood pressure control, attention to improving the quality of care for high blood pressure in patients with diabetes is of major importance.
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