Definition: Autonomic neuropathy occurs when the nerves that control involuntary bodily functions are damaged. This may affect blood pressure, temperature control, digestion, bladder function and even sexual function. The nerve damage interferes with the messages sent between the brain and other organs and areas of the autonomic nervous system, such as the heart, blood vessels and sweat glands. While diabetes is generally the most common cause of autonomic neuropathy, other health conditions even an infection, may be to blame. Some medications also may cause nerve damage.
Symptoms and Treatment: Symptoms vary depending on the nerves affected. They usually develop gradually over years.
Symptoms may include: Constipation (hard stools), Diarrhea (loose stools), Feeling full after only a few bites (early satiety), Nausea after eating, Problems controlling bowel movements, Swallowing problems, Swollen abdomen, Vomiting of undigested food, Abnormal heart rate or rhythm, Blood pressure changes with position and causes dizziness when standing, High blood pressure, Shortness of breath with activity or exercise, Difficulty beginning to urinate, Feeling of incomplete bladder emptying, Leaking urine, Sexual problems including erection problems in men and vaginal dryness and orgasm difficulties in women, Small pupil in one eye, Weight loss without trying. Treatment to reverse nerve damage is most often not possible. As a result, treatment and self-care are focused on managing your symptoms and preventing further problems. Doctor may recommend: Extra salt in the diet or taking salt tablets to increase fluid volume in blood vessels, Fludrocortisone or similar medications to help your body retain salt and fluid, Medicines to treat irregular heart rhythms, Pacemaker, Sleeping with the head raised, Wearing elastic stockings.
Statistics: Statistical analsysis on Autonomics nuropathy in China were given as that in patients with CAN and T1DM, the wash rates of 11C-epinephrine have been shown to correlate well with those of 11C-HED. The development of microvascular complications has been associated with the augmentation in sympathetic tone and adrenergic hyper-responsiveness, by the use of 11C-HED. As CAN reaches an advanced stage, a heterogenous pattern of 11C-HED retention is observed, with a reduced 11C-HED retention in the distal LV and a persistent or increased 11C-HED retention seen proximally, indicating a proximal to distal pattern of sympathetic denervation of the LV.