Postural (Orthostatic) Hypotension

Postural hypotension, also known as orthostatic hypotension, is a condition which results in a decrease in blood pressure when you sit or stand. This can cause "light-headedness" or "fainting".  It occurs more commonly when you are first injured, when you are fatigued, or after an illness.  There is an increased tendency for postural hypotension if the level of injury is at T-6 or above, but it can occur in all spinal cord injured individuals.

Postural hypotension after a SCI occurs since the blood vessels do not decrease in size, in response to lowered blood pressure, due to the altered function of the autonomic nervous system. Because of this, blood pools in the pelvic region or legs while you are sitting or sanding. Postural hypotension usually occurs when you are initially placed in your wheelchair or on the tilt table.

Prevention:  Wear elastic hose and an abdominal support and come to sitting or standing positions gradually.  If postural hypotension occurs tilt or lay backward until you are nearly horizontal to the floor.  This increases blood pressure and the "fainting" will quickly disappear.