Abstracts from the Neuromodulation Society of the UK and Ireland 2009 Annual Scientific Meeting November 5-7, 2009 Plymouth, UK

摘要

Background and Aims: The Bruehl diagnostic criteria (1999) is the most widely accepted and utilized method of confirming the diagnosis of CRPS where no other diagnosis can better explain symptoms. Signs and symptoms are grouped into four categories: 1. sensory; 2. vasomotor, 3. sudomotor/oedema, 4. motor/trophic.The effectiveness of spinal cord stimulation (SCS) in the treatment of CRPS has been reported in terms of overall pain reduction and it has been suggested that it improves quality of life (1,2). The impact of SCS on CRPS symptom profile has not yet been reported in the literature.The authors audited the records of 29 SCS implanted patients with CRPS using data from trials and routine follow-ups and related them to Bruehl's four categories. Self-reported changes or otherwise in symptoms following implant where compared. The intention was to determine which symptoms were alleviated, and which were not, by SCS. By improving our knowledge of the impact of SCS on symptoms we hoped to be able to prepare patients more appropriately for the procedure in the future.Methods: A retrospective case series of 29 patients with implanted SCS for CRPS was identified from the WCNN neuromodulation database. Data retrieved comprised: demographics; pre-trial and post-implant pain scores and symptom profile; period of follow-up.Results: Mean pain intensity (NRS 0-10) was 9.04 (SD 0.81) pre-trial compared to 5.07 (SD 2.46) at follow-up stimulator on. At follow-up allodynia (sensory) was reported by 24% of patients compared to 93% pre-trial. Temperature asymmetry (vasomotor) was reported by 62% compared to 78% pre-trial. Colour asymmetry (vasomotor) was reported by 67% compared to 89% pre trial. Oedema (sudomotor) was reported by 41% patients compared to 81% pre-trial. Sweating asymmetry (sudomotor) was reported by 44% compared to 67% pre-trial. Motor dysfunction (motor) was reported by 23% compared to 96% pre-trial. Hairail growth asymmetry was reported by 53% compared to 56%...