Thoracoabdominal Neuropathy (TAN): Symptoms, Causes & Treatment

Thoracoabdominal neuropathy (TAN) is a rare and potentially life-threatening condition that affects the nerves in the chest and abdomen. It is caused by damage to the sympathetic chain, which is a network of nerves that runs along the spine and controls a variety of bodily functions, including heart rate, blood pressure, and digestion.

Symptoms of TAN can include:

* Severe, burning pain in the chest and abdomen

* Nausea and vomiting

* Diarrhea

* Constipation

* Difficulty breathing

* Low blood pressure

* Rapid heart rate

* Sweating

* Chills

* Fever

* Muscle weakness

* Paralysis

Diagnosis of TAN is based on the patient's symptoms and a physical examination. The doctor may also order tests such as:

* Blood tests

* Imaging studies

* Nerve conduction studies

* Electromyography

Treatment of TAN depends on the severity of the condition and the underlying cause. Treatment may include:

* Medications to relieve pain and inflammation

* IV fluids to correct dehydration

* Antibiotics to treat infection

* Surgery to remove a tumor or other obstruction

* Physical therapy to help restore muscle function

Prognosis for TAN depends on the severity of the condition and the underlying cause. With early diagnosis and treatment, most people with TAN can recover completely. However, some people may develop permanent nerve damage or other complications.