Complex regional pain syndrome
Array of painful conditions in humans / From Wikipedia, the free encyclopedia
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Complex regional pain syndrome (CRPS Type 1 and Type 2) is a severe form of chronic pain, in which pain from a physical trauma outlasts the expected recovery time. The symptoms of types 1 and 2 are the same except type 2 is associated with nerve injury.
Complex regional pain syndrome | |
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Other names | Algodystrophy; Amplified musculoskeletal pain syndrome; hyponym: reflex sympathetic dystrophy (RSD); hyponym: causalgia; hyponym: reflex neurovascular dystrophy (RND) |
Leg of an individual (left) with complex regional pain syndrome following tibial bone fracture | |
Specialty | Neurology, psychiatry, anesthesiology |
Symptoms | Pain, allodynia, hypo- or hyperesthesia, skin temperature abnormalities, atrophy, stiffness |
Treatment | Physical therapy (more effective with early diagnosis); medications (e.g., anticonvulsants, opioids, muscle relaxers, etc.); sympathetic nerve blockade; ketamine infusions; lidocaine infusions; implantable pharmaceuticals; amputation |
Medication | Anticonvulsants (e.g., gabapentin); muscle relaxers (e.g., baclofen), ketamine or lidocaine infusions[citation needed] |
Usually starting in a limb, CRPS manifests as pain, swelling, limited range of motion, and/or changes to the skin and bones. It may initially affect one limb and then spread throughout the body; 35% of affected individuals report symptoms throughout the body.[1] Two types are thought to exist: CRPS type 1 (previously referred to as reflex sympathetic dystrophy) and CRPS type 2 (previously referred to as causalgia). It is possible to have both types.[2]
Amplified musculoskeletal pain syndrome, a condition that is similar to CRPS, primarily affects pediatric patients, falls under rheumatology and pediatrics, and is generally considered a subset of CRPS type I.[3]