Complex Regional Pain Syndrome (RSD)

Complex Regional Pain Syndrome (CRPS), formerly known as Reflex Sympathetic Dystrophy (RSD), is a chronic pain condition that typically develops after an injury, surgery, stroke, or heart attack, though the pain experienced is often out of proportion to the original event. It is characterized by persistent, severe pain—often described as burning, stabbing, or throbbing—usually affecting an arm, leg, hand, or foot. The exact cause of CRPS is not fully understood, but it is believed to involve abnormal responses of the peripheral and central nervous systems, leading to prolonged inflammation and altered pain signaling. Symptoms may include changes in skin color and temperature, swelling, increased sensitivity to touch, abnormal sweating, stiffness, and decreased mobility in the affected limb. Over time, the skin may become shiny or thin, and muscles and bones can weaken due to disuse. Diagnosis is primarily clinical, based on medical history, physical examination, and exclusion of other conditions, as there is no single definitive test. Early recognition is critical because treatment initiated in the early stages offers the best chance for recovery. Management focuses on pain relief, restoring function, and improving quality of life through a multidisciplinary approach that may include medications, physical and occupational therapy, nerve blocks, and psychological support. Medications such as corticosteroids, anticonvulsants, antidepressants, and pain relievers may be used, while physical therapy helps maintain movement and prevent stiffness. Psychological counseling can assist patients in coping with chronic pain and the emotional stress it causes. In severe cases, advanced treatments such as spinal cord stimulation or intrathecal drug pumps may be considered. Although CRPS can be challenging to treat, with early and comprehensive care, some individuals experience significant improvement or remission of symptoms.