title: Correlation of clinical findings and results of percutaneous balloon compression for patients with trigeminal neuralgia.
abstract: OBJECTIVE
  To investigate pain relief and recurrence after percutaneous balloon compression (PBC) and its association with type of pain, prior surgery, or other clinical factors.
  
  
  METHODS
  Fifty-nine patients with medically refractory trigeminal pain were enrolled into this study. Patients were divided into those with typical trigeminal neuralgia (TN), and those with other types of trigeminal pain or "atypical pain." The post-surgical rate of recurrence was estimated by the Kaplan-Meier method. Cox-proportional hazards models were used to investigate associations between patient characteristics and recurrence of pain.
  
  
  RESULTS
  Forty-two patients had TN, 17 patients had atypical pain. At last follow-up, 40 patients had excellent, 9 good, 7 fair and 3 poor pain relief. Recurrence was observed in 35 patients, and was associated with pain type (relative risk (RR)=2.38, 95% confidence interval (CI): 1.22-4.63, P=0.011) and pain duration before PBC (RR=1.33, 95% CI: 1.02-1.72, P=0.033). Other clinical factors were not significant. Two patients had transient paresis of the sixth cranial nerve, however, there were no permanent post-surgical complications.
  
  
  CONCLUSIONS
  Our study demonstrates the safety and efficacy of PBC with 83% of patients being pain free at last follow-up. Patients with atypical pain and longer pre-surgical symptom duration appear to have a higher risk of recurrence. Repeat surgery is just as effective as initial surgery, justification for being conservative in parameter selection at the initial procedure to minimize complications.
authors.affiliation: Department of Neurosurgery, Medical University of Silesia, Sosnowiec, Poland.
authors.forename: Monika
authors.initials: M
authors.lastname: Stomal-Słowińska
authors.forename: Jerzy
authors.initials: J
authors.lastname: Słowiński
authors.forename: Tae-Kyu
authors.initials: TK
authors.lastname: Lee
authors.forename: Ryan J
authors.initials: RJ
authors.lastname: Uitti
authors.forename: H Gordon
authors.initials: HG
authors.lastname: Deen
authors.forename: Ronald
authors.initials: R
authors.lastname: Reimer
authors.forename: William P
authors.initials: WP
authors.lastname: Cheshire
authors.forename: Grace
authors.initials: G
authors.lastname: Herzog-Bryan
authors.forename: Robert E
authors.initials: RE
authors.lastname: Wharen
mesh_terms: D020434:Abducens Nerve Diseases / Q000209:etiology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002404:Catheterization / Q000009:adverse effects; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D053208:Kaplan-Meier Estimate; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures; D059408:Pain Management; D011183:Postoperative Complications / Q000503:physiopathology; D016016:Proportional Hazards Models; D012008:Recurrence; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome; D014277:Trigeminal Neuralgia / Q000628:therapy*