Complex Regional Pain Syndrome: Manifestations and the Role of Neurostimulation in Its Management  Michael Stanton-Hicks  Journal of Pain and Symptom Management  Volume 31, Issue 4, Pages S20-S24 (March 2006) DOI: 10.1016/j.jpainsymman.2005.12.011 Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 1 The sympathetic component of pain. The diagram illustrates the relative contribution of SMP to SIP. A patient at A would be said to have a large component of SMP and therefore respond favorably to a sympathetic block; a patient at B whose symptoms are primarily SIP would have little or no response to a sympathetic block. Journal of Pain and Symptom Management 2006 31, S20-S24DOI: (10.1016/j.jpainsymman.2005.12.011) Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 2 Revised therapeutic algorithm for CRPS.1 The algorithm emphasizes the use of therapeutic modalities in response to the patient's clinical progress during the course of his or her rehabilitation; adapted from the earlier 1998 Guidelines. Journal of Pain and Symptom Management 2006 31, S20-S24DOI: (10.1016/j.jpainsymman.2005.12.011) Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 3 Reduction of edema in the right hand of a patient with CRPS, 24 hours after treatment with SCS.6 Journal of Pain and Symptom Management 2006 31, S20-S24DOI: (10.1016/j.jpainsymman.2005.12.011) Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 4 SCS significantly improves QoL in patients with CRPS.9 Journal of Pain and Symptom Management 2006 31, S20-S24DOI: (10.1016/j.jpainsymman.2005.12.011) Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions