Identifies distinct patterns of cerebral blood flow autoregulation in orthostatic hypotension that determine a patient's physiological capacity to cope with the condition.
The most common patterns of cerebral response to OH are autoregulatory failure with a flat flow-pressure relationship or intact autoregulation with an expanded autoregulated range. The least common pattern is autoregulatory failure with a steep flow-pressure relationship. Patients with patterns 1 and 2 have an enhanced capacity to cope with OH, while those with pattern 3 have reduced capacity.
Novak et al. (Thu,) studied this question.