title: High-frequency - Spinal Cord Stimulation.
abstract: OBJECTIVE
  Our clinical experience with high - frequency SCS for FBSS in patients with predominant low back pain is presented.
  
  
  METHODS
  After a trial period, 100 % (21 out of 21) of patients with FBSS with predominant low back pain reported a significant improvement in visual analog scale (VAS) pain score and underwent permanent implantation of the high - frequency SCS system. SCS trials lasted 7-14 days (median 9 days). SCS leads were mostly positioned at the T8-10 or T8-12 vertebral levels . We used both single and dual lead placement. VAS, patient satisfaction, patient performance status, opioid consumption and complication rate were assessed for the period of 12 months.
  
  
  RESULTS
  The mean VAS score before implantation (8.7) compared to VAS 12 months after implantation (4.0) was significantly lower (CI95[3.9-5.4], p < 0.001). There was a significant improvement in performance status when comparing PS before implantation (3.0) and 12 months after implantation (1.8) (CI95[0.9-1.6], p < 0.001). The mean patient satisfaction scores (PSS) did not differ throughout the whole one year follow-up period.
  
  
  CONCLUSIONS
  Our group of 21 patients with implanted high - frequency SCS systems reported significant low back pain and leg pain relief within the period of 12 months as well as significant improvement in their performance status. We had a special subgroup of 5 patients with regular change of frequencies between high frequency and conventional frequency (with paresthesia) also with significant leg and low back pain relief (Tab. 2, Fig. 1, Ref. 8). Text in PDF www.elis.sk.
authors.forename: R
authors.initials: R
authors.lastname: Rapcan
authors.forename: J
authors.initials: J
authors.lastname: Mlaka
authors.forename: M
authors.initials: M
authors.lastname: Venglarcik
authors.forename: V
authors.initials: V
authors.lastname: Vinklerova
authors.forename: M
authors.initials: M
authors.lastname: Gajdos
authors.forename: R
authors.initials: R
authors.lastname: Illes
mesh_terms: D000328:Adult; D000701:Analgesics, Opioid / Q000627:therapeutic use; D055111:Failed Back Surgery Syndrome / Q000628:therapy*; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D017060:Patient Satisfaction; D013116:Spinal Cord / Q000502:physiology; D062187:Spinal Cord Stimulation / Q000379:methods*; D016896:Treatment Outcome
chemical_list: D000701:Analgesics, Opioid
keywords: failed back surgery syndrome; high - frequency stimulation; predominant back pain; spinal cord stimulation.