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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]
Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...
Per the Mayo Clinic, POTS "affects the autonomic nervous ... Sjogren's syndrome "is a disorder of your immune system identified by its two most common symptoms — dry eyes and a dry mouth ...
Pure autonomic failure (PAF) is an uncommon, sporadic neurodegenerative condition marked by a steadily declining autonomic regulation. [3] Bradbury and Eggleston originally described pure autonomic failure in 1925. [4] Patients usually present with orthostatic hypotension or syncope in midlife or later.
Signs and symptoms of Parkinson's disease are varied. Parkinson's disease affects movement, producing motor symptoms . [ 1 ] Non-motor symptoms, which include dysautonomia , cognitive and neurobehavioral problems, and sensory and sleep difficulties, are also common. [ 1 ]
Since Harlequin syndrome is associated with a dysfunction in the autonomic nervous system, main symptoms of this dysfunction are in the following: Absence of sweat and flushing on one side of the face, neck, or upper thoracic area. In addition, other symptoms include cluster headaches, tearing of the eyes, nasal discharge, abnormal contraction ...
The disorder may be associated with Addison's disease, atherosclerosis (build-up of fatty deposits in the arteries), diabetes, pheochromocytoma, porphyria, [17] long COVID, [18] [19] and certain neurological disorders, including autoimmune autonomic ganglionopathy, multiple system atrophy, and other forms of dysautonomia.
The signs and symptoms of Peripheral mononeuropathy and neuropathy vary as a result of the types of individual and/or nerve areas affected. There are three types of nerve damage, including: "motor nerve damage, sensory nerve damage, and autonomic nerve damage". [2]