Autonomic dysreflexia is a potentially life-threatening condition that affects individuals with spinal cord injuries at the T6 level or higher. It occurs when the body's autonomic nervous system—which controls involuntary functions like blood pressure, heart rate, and body temperature—malfunctions due to the spinal cord damage. When a painful or irritating stimulus occurs below the level of injury (such as a full bladder, bowel impaction, tight clothing, or pressure sores), the body cannot properly regulate its response, causing blood pressure to spike dangerously high, sometimes reaching levels of 200/100 mmHg or higher.
The symptoms of autonomic dysreflexia include severe pounding headache, profuse sweating above the injury level, flushed skin, blurred vision, anxiety, nasal congestion, and bradycardia (slow heart rate). Without immediate treatment, AD can lead to stroke, seizures, retinal hemorrhage, pulmonary edema, myocardial infarction, or death. This condition requires emergency medical intervention and lifelong vigilance, as episodes can occur repeatedly throughout a person's life. For victims of car accidents, truck accidents, or other traumatic events that cause high-level spinal cord injuries, the risk of autonomic dysreflexia adds another layer of danger and complexity to their already devastating injury.
- ✓Blood pressure can spike to stroke-level readings within minutes
- ✓Requires immediate medical intervention to prevent death or permanent damage
- ✓Can be triggered by common issues like full bladder or constipation
- ✓Affects approximately 48-90% of individuals with injuries at T6 or above
- ✓Episodes can occur multiple times per day in severe cases