Postural Hypertension Meaning. Nevertheless, our knowledge about its causes and significance remains. Orthostatic hypotension, also known as postural hypotension, is a medical condition wherein a person's blood pressure drops when standing up or sitting down.

Orthostatic diastolic hypertension is a condition in which the diastolic bp raises to. Jevon p (2001) postural hypotension: However, at other times the oht can be dramatic and persistent.