Recurrence and spread of complex regional pain syndrome caused by remote-site surgery: a case report.

摘要

Complex regional pain syndrome (CRPS) is characterized by spontaneous pain disproportionate to the inciting injury, hyperalgesia, allodynia, sensorimo-tor dysfunction, edema, sudomotor abnormalities, and skin color changes. Complex regional pain syndrome can be classified by etiology, based on the absence (type 1) or presence (type 2) of a clinically verifiable nerve injury.1 Alternatively, CRPS can be described by pathophysiology: sympathetically maintained pain (SMP) versus sympathetically independent pain (SIP).Complex regional pain syndrome is typically thought of as a regional problem, but spread and recurrence may occur as part of the natural history of this syndrome.In fact, several patterns of spread and recurrence have been described.