Rational Prescribing and Deprescribing of Antihypertensive Medications in Older People, Part 2.

The evidence is strong in favor of blood pressure (BP) control in robust older people as a way to reduce morbidity and mortality in the same way that treatment improves the lives of middle-aged people. Expert editorials have been written over the last five decades persuasively arguing for or against more intensive treatment of older people with hypertension, supported by the specificity of (then) contemporaneous randomized controlled trials (RCTs) or the generalizability of observational studies. But there are limitations.First, there has always been such a thing as too low. Early epidemiological studies showed an upward inflection in mortality curves that resemble a slanted letter J. Second, certain complex older people encountered routinely in a clinic, pharmacy, or nursing facility were often excluded from the RCTs showing benefit from intensive BP control. Cohort studies of these complex people showed a different truth, that the point of "too low" might move up and that BP targets for adults might be too low for select older people. Not all older people are the same. Some are burdened by frailty superimposed on cardiovascular disease and a limited life-expectancy. It is one thing not to start BP-lowering medications for this patient; it is an entirely different matter to stop.