Complex regional pain syndrome (CRPS) is a chronic pain condition that affects one of the limbs usually after an injury or trauma to that limb. It is believed that CRPS results from damage to, or malfunction of the peripheral and central nervous system. In CRPS, the damaged nerves are unable to properly control blood flow, feeling, and temperature to the affected area. According to the website of Williams Kherkher, the condition can spread to other parts of the body.
There are two types of CRPS, which have similar symptoms and treatments. CRPS-I formerly reflex sympathetic dystrophy syndrome involves the absence of confirmed nerve injury. It is most common in the arms or legs after a minor injury. CRPS-II, on the other hand, involves confirmed nerve injuries. It is the result of an injury to the nerve.
Doctors are not sure about the causes of complex regional pain syndrome. In most instances, it results from trauma or injury. It is most commonly triggered by fractures, sprain, soft tissue injuries, limb immobilization, or surgical and medical procedures. Injuries in the small nerve fibers may bring about the different symptoms of CRPS. Abnormalities in the peripheral nerves cause neurological functions in the spinal cord to work abnormally.
CRPS can affect the immune system as well. High level of inflammatory chemicals is present in the tissues of people with the condition. Inflammatory and autoimmune conditions such as asthma can also trigger CRPS. Complex regional pain syndrome does not have a single cause but results from several causes that produce similar symptoms. According to some theories, pain receptors in the affected part of the body responds to catecholamines, a group of nervous system messengers. It is believed that complex regional pain syndrome disrupts the healing process. Emotional stress may also trigger complex regional pain syndrome.
On certain occasions, CRPS develops without any injury. It may be caused by an infection, a blood vessel problem, or an entrapment of the nerves.Read More