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Experience with Conventional Radiofrequency Thermorhizotomy in Patients with Failed Medical Management for Trigeminal Neuralgia

  • Singh, Sarita (Department of Anaesthesiology, King George's Medical University) ;
  • Verma, Reetu (Department of Anaesthesiology, King George's Medical University) ;
  • Kumar, Manoj (Department of Radiology, King George's Medical University) ;
  • Rastogi, Virendra (Department of Anesthesia, Banaras Hindu University) ;
  • Bogra, Jaishree (Department of Anaesthesiology, King George's Medical University)
  • Received : 2014.01.10
  • Accepted : 2014.06.01
  • Published : 2014.07.01

Abstract

Background: To evaluate the results of conventional radiofrequency thermorhizotomy (CRT) for trigeminal neuralgia (TN) in patients with failed medical management. Methods: Patients with Trigeminal neuralgia who were referred to us for 'limited intervention' during the time frame July-2011 to Jan-2013 were enrolled for this study. CRT was administered by the Sweet technique. Pain relief was evaluated by the principle investigator. Results: Eighteen patients were enrolled and completed a mean follow-up of 18.0 months. Pain relief was observed in 14 of 18 (77.8%) patients on the post-operative day, 14 of 18 (77.8%) at 1-month follow-up, 14 of 17 (82.4%) at 3-months follow-up, 12 of 15 (80%) at 6-months follow-up, 7 of 11 (63.6%) at 1-year follow-up and 2 of 6 (33.3%) 1.5 years of follow-up. Four patients required a repeat cycle of CRT; two at six months of follow-up and two at one year of follow-up. One patient was transferred for surgical intervention at six months of follow-up. Side-effects included facial hypoesthesia (n = 6); nausea/vomiting (n = 2), diminished corneal reflex (n = 13) and difficulty in chewing (n = 11). Severity of adverse effects gradually diminished and none of the patients who are beyond 6 months of follow-up have any functional limitation. Conclusions: CRT is an effective method of pain relief for patients with Trigeminal neuralgia. Successful outcome (excellent or good) can be expected in 66.7% of patients after first cycle of CRF. The incidence and severity of adverse effects is less and the procedure is better tolerated by the patients.

Keywords

References

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