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Autonomic dysreflexia (AD) is a life-threatening medical emergency characterized by hypertension and cardiac arrhythmias. [1] This condition is sometimes referred to as autonomic hyperreflexia. [ 2 ] Most cases of AD occur in individuals with spinal cord injuries. [ 3 ]
Dysautonomia, autonomic failure, or autonomic dysfunction is a condition in which the autonomic nervous system (ANS) does not work properly. This condition may affect the functioning of the heart, bladder, intestines, sweat glands, pupils, and blood vessels. Dysautonomia has many causes, not all of which may be classified as neuropathic. [5]
Sacral parasympathetic loss may be encountered in lesions below T6 or T7. Cervical lesions cause total loss of sympathetic innervation and lead to vasovagal hypotension and bradyarrhythmias – which resolve in 3–6 weeks. Autonomic dysreflexia is permanent, and occurs from Phase 4 onwards.
In primary dysautonomias, the autonomic dysfunction occurs as a primary condition (as opposed to resulting from another disease). [1] Autonomic failure is categorized as "primary" when believed to result from a chronic condition characterized by degeneration of the autonomic nervous system, or where autonomic failure is the predominant symptom ...
Paroxysmal sympathetic hyperactivity (PSH) is a syndrome that causes episodes of increased activity of the sympathetic nervous system.Hyperactivity of the sympathetic nervous system can manifest as increased heart rate, increased respiration, increased blood pressure, diaphoresis, and hyperthermia. [1]
It is a destructive neurological and pathological state that causes major motor, sensory and autonomic dysfunctions. [ 3 ] Symptoms of spinal cord injury may include loss of muscle function, sensation , or autonomic function in the parts of the body served by the spinal cord below the level of the injury.
Autonomic dysreflexia; Autonomic neuropathy; Axillary nerve dysfunction; Axillary nerve palsy; C. Charcot–Marie–Tooth disease; Charcot–Marie–Tooth disease ...
This is a shortened version of the sixth chapter of the ICD-9: Diseases of the Nervous System and Sense Organs.It covers ICD codes 320 to 389.The full chapter can be found on pages 215 to 258 of Volume 1, which contains all (sub)categories of the ICD-9.