Association between orthostatic hypotension and cardiovascular risk, cerebrovascular risk, cognitive decline and falls as well as overall mortality: a systematic review and meta-analysis.

Several studies have suggested that orthostatic hypotension may be an independent predictor of cardiovascular or cerebrovascular risk and all-cause mortality, particularly in a geriatric population. In 1996, a consensus defined orthostatic hypotension as a SBP fall at least 20 mmHg and/or a DBP fall at least 10 mmHg within 3 min of standing.