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Complex regional pain syndrome

Alternative Names: CRPS; RSDS; Causalgia; Shoulder-hand syndrome; Reflex sympathetic dystrophy syndrome; Sudeck's atrophy Symptoms: In most cases CRPS has 3 stages. Often, however, CRPS does not follow this progression. Some people go into the later stages almost immediately. Others remain in Stage 1 indefinitely. Text Continues Below Stage 1 (lasts 1-3 months) Severe burning, aching pain increasing with the slightest touch or breeze Swelling with warmth or coolness Skin becomes dry and thin, changes color Increased nail and hair growth Pain may move further up or down the affected limb Stage 2 (lasts 3-6 months) Swelling spreads Noticeable changes in skin texture and color Decreased hair growth Changes in bone seen in x-rays Stiff muscles and joints Stage 3 (irreversible changes become evident) Pain may exist in the entire limb Permanent tissue changes Muscle wasting Limited mobility in limb Contractions involving muscles and tendons Depression or changes in mood may accompany these symptoms, especially in stage 3. Signs and tests: Diagnosing CRPS can be difficult, but early diagnosis is very important. Often, the symptoms are severe compared to the original trauma or injury. It is possible to make a diagnosis based on a medical history and physical examination. The key complaint is the severe, burning pain. Additional tests may include x-rays, bone scans, nerve conduction studies, and thermography (a test to show temperature changes and lack of blood supply in the painful area of the affected limb).

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