Open AccessPeripheral Nerve Field Stimulation for Chronic Pain: 100 Cases and Review of the Literature
Author(s) -
Verrills Paul,
Vivian David,
Mitchell Bruce,
Barnard Adele
Publication year - 2011
Publication title -
pain medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.893
H-Index - 97
eISSN - 1526-4637
pISSN - 1526-2375
DOI - 10.1111/j.1526-4637.2011.01201.x
Subject(s) - medicine , oswestry disability index , chronic pain , lumbosacral joint , depression (economics) , prospective cohort study , interventional pain management , analgesic , physical therapy , anesthesia , low back pain , surgery , alternative medicine , pathology , economics , macroeconomics
Objective. To evaluate the clinical outcomes of 100 consecutive patients receiving peripheral nerve field stimulation (PNFS) for the treatment of chronic intractable pain. Design. Prospective, observational study. Setting. A private interventional pain specialty referral practice. Patients. One hundred consecutive private practice patients receiving PNFS for the treatment of chronic craniofacial, thorax, lumbosacral, abdominal, pelvic, and groin pain conditions. Outcome Measures. Pain (11‐point numerical rating scale), complications, changes to analgesic use and employment status, disability (Oswestry or Neck Disability Indexes), depression (Zung Depression Index), and patient satisfaction. Results. We demonstrate an average pain reduction of 4.2 ± 2.5 pain scale points on an 11‐point scale following PNFS (preimplant pain score of 7.4 ± 1.7 to a follow‐up average of 3.2 ± 2.3 pain scale points) ( P ≤ 0.00). At a follow‐up period of 8.1 ± 4.7 months (range 1–23 months), an overall 72% of patients reduced their analgesic use following PNFS. Patients receiving a lumbosacral PNFS for chronic low back pain reported a significant reduction in disability following treatment, as determined by the Oswestry Disability Index. Of the 100 cases, no long‐term complications were reported. Conclusions. This prospective 100 consecutive PNFS patient outcome study demonstrates that PNFS can be a safe and effective treatment option for, otherwise, intractable chronic pain conditions. PNFS has the potential to fundamentally change the way we think about pain management.