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The Journal of the Korean Society for Therapeutic Radiology and Oncology 2006;24(2): 88-95. |
| Early Therapeutic Effects of Cyberknife Radiosurgery on Trigeminal Neuralgia |
| Seong Kwon Mun, Byung Ock Choi, Ihl Bohng Choi, Young Nam Kang, Ji Sun Jang, Ki Mun Kang |
1Department of Radiation Oncology, The Catholic University of Korea College of Medicine, Seoul, Korea. choibo67@catholic.ac.kr
2Department of Radiation Oncology, Gyeongsang National University School of Medicine, Jinju, Korea. |
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| ABSTRACT |
PURPOSE:
We evaluated whether Cyberknife radiosurgery is an effective and safe method of therapy for medically intractable trigeminal neuralgia (TN).
MATERIALS AND METHODS:
We retrospectively analyzed the outcome of 26 patients, who failed to surgery or were not suitable candidates for invasive intervention and were treated by Cyberknife radiosurgery between March 2004 and May 2005. Radiosurgery doses of 60~64 Gy were delivered to the 80% isodose line prescribed to an 6 mm length of the nerve, sparing the most proximal 3 mm away from the trigeminal nerve root entry zone (median dose: 64 Gy).
RESULTS:
Follow-up period was 3~15 months (median follow-up period: 9 months) Preliminary results from a cohort of 26 patients undergoing Cyberknife radiosurgery for TN showed that pain relief was achieved in 50% (13/26) of patients within the first 24 hrs after treatment. At last follow-up, 96.2% (25/26) of patients reported early pain relief within 7 days. Treatment failure developed in 2 of 26. Poor response occurred in one patient and relapse was observed in the other patient. 3 patients had hypoesthesia (11.5%), which was the only complication observed with any of our patients.
CONCLUSION:
With these results, authors assumed that Cyberknife radiosurgery for TN could be one of safe and effective therapeutic methods. |
| Key Words:
Trigeminal neuralgia, Cyberknife radiosurgery |
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