Abstract ID: A29
Abstract Title: Percutaneous Disc Decompression Registry: Long-term Safety and Efficacy Data
Authors: Ahadian F1, Schocket S2, Schocket K3
University Of California, San Diego La Jolla California U.S.A.1, University Of California, San Diego La Jolla California U.S.A.2, University of Texas, Southwestern Medical Center Dallas Texas U.S.A.3
Poster Type: Either
ABSTRACT BODY
INTRODUCTION: Percutaneous Disc Decompression (PDD) using the Acutherm catheter is a recent advance in treatment of discogenic pain. This study obtains efficacy and safety data on this treatment.
METHODS: After IRB approval subjects treated with PDD at UCSD from 11/02 - 2/05 were entered into the PDD Registry and followed prospectively. Subjects with ongoing litigation, greater than 2-level disc disease, or prior PDD or IDET were excluded. Response was assessed at each clinic visit using a visual analogue scale and a 4-point descriptive scale (Excellent, Good, Fair, No change). Subjects were followed monthly for four post-op months, then as needed. Primary outcome measure was >=50% pain reduction.
RESULTS: 14 subjects qualified for the study (10F, 4M), median age 46, age range 25-60, median pain duration 2-5 yrs. 7 subjects had 1-level PDD, 7 subjects 2-levels. Mean long-term follow-up duration was 9.2 months-range 6-16 months. 79%(11/14), 86%(12/14) & 83%(10/12) reported >=50% improvement at 1, 4 & 9.2 months respectively. Median reduction in VAS was 5.5 @1-month (p=0.001), 7 @ 4 (p=0.001) &9.2 months (p=0.002). 12/14, 11/14 & 11/12 subjects reported Excellent or Good response at 1,4 &9.2months. Complications included one report of transient dysesthesia resolving in 5-days post-op and 2 reports of post-op back pain lasting 1 week and 4 weeks each.
CONSLUSION: This study demonstrates an 83% long-term success rate for PDD with an excellent safety profile. The success rate compares favorably with historical data on surgical and non-surgical therapies. The prompt analgesia is a dramatic improvement over prior comparable treatments. PDD is a safe, effective and durable treatment option for a subset of patients with discogenic low back pain.
ATTACHED FILES
A29_PDD-Fig 1.pdf
A29_PDD-Fig 2.pdf
A29_PDD-TABLE.pdf
Reg Anesth Pain Med 2005; 30(3):A29