Different patterns of orthostatic hypotension in older patients with unexplained falls or syncope: orthostatic hypotension patterns in older people.

Purpose: To evaluate different patterns of orthostatic hypotension (OH) and its relation to mortality in older patients with unexplained falls or syncope.

Methods: This is an observational cohort study in consecutive patients aged ≥ 65 years with unexplained falls or syncope at a Fall Syncope day clinic November 2011 until May 2016. OH is defined as a decrease in systolic blood pressure (BP) ≥ 20 mmHg and/or in diastolic BP ≥ 10 mmHg during standing test.