Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures

Objectives Trigeminal neuralgia (TN) is undurable paroxysmal pain in the distribution of the fifth cranial nerve. Invasive treatment modalities for TN include microvascular decompression (MVD) and percutaneous procedures, such as, radiofrequency rhizotomy (RFR). Gamma Knife radiosurgery (GKRS) is a...

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Main Authors: Jae Meen Lee, Beong Ik Hur, Chang Hwa Choi
Format: Article
Language:English
Published: Kosin University College of Medicine 2019-06-01
Series:Kosin Medical Journal
Subjects:
Online Access:http://www.kosinmedj.org/upload/pdf/ksmc034-01-04.pdf
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author Jae Meen Lee
Beong Ik Hur
Chang Hwa Choi
author_facet Jae Meen Lee
Beong Ik Hur
Chang Hwa Choi
author_sort Jae Meen Lee
collection DOAJ
description Objectives Trigeminal neuralgia (TN) is undurable paroxysmal pain in the distribution of the fifth cranial nerve. Invasive treatment modalities for TN include microvascular decompression (MVD) and percutaneous procedures, such as, radiofrequency rhizotomy (RFR). Gamma Knife radiosurgery (GKRS) is a considerable option for patients with pain recurrence after an initial procedure. This study was undertaken to analyze the effects of gamma knife radiosurgery in recurrent TN after other procedures. Methods Eleven recurrent TN patients after other procedures underwent GKRS in our hospital from September 2004 to August 2016. Seven patients had previously undergone MVD alone, two underwent MVD with partial sensory rhizotomy (PSR), and two underwent RFR. Mean patient age was 60.5 years. We retrospectively analyzed patient's characteristics, clinical results, sites, and divisions of pain. Outcomes were evaluated using the Visual Analog Scales (VAS) score. Results Right sides were more prevalent than left sides (7:4). The most common distribution of pain was V1 + V2 division (n = 5) following V2 + V3 (n = 3), V2 (n = 2), and V1 + V2 + V3 (n = 1) division. Median GKRS dose was 80 Gy and the mean interval between the prior treatment and GKRS was 74.45 months. The final outcomes of subsequent GKRS were satisfactory in most cases, and at 12 months postoperatively ten patients (90.0%) had a VAS score of ≤ 3. Conclusions In this study, the clinical result of GKRS was satisfactory. Invasive procedures, such as, MVD, RFR are initially effective in TN patients, but GKRS provides a safe and satisfactory treatment modality for those who recurred after prior invasive treatments.
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spelling doaj.art-c93c9bb683104b1bb4db8797825188902022-12-22T03:23:12ZengKosin University College of MedicineKosin Medical Journal2005-95312019-06-01341303710.7180/kmj.2019.34.1.30100Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other ProceduresJae Meen Lee0Beong Ik Hur1Chang Hwa Choi2Department of Neurosurgery, Pusan National University Hospital, Busan, .KoreaDepartment of Neurosurgery, Pusan National University Hospital, Busan, .KoreaDepartment of Neurosurgery, Pusan National University Hospital, Busan, .KoreaObjectives Trigeminal neuralgia (TN) is undurable paroxysmal pain in the distribution of the fifth cranial nerve. Invasive treatment modalities for TN include microvascular decompression (MVD) and percutaneous procedures, such as, radiofrequency rhizotomy (RFR). Gamma Knife radiosurgery (GKRS) is a considerable option for patients with pain recurrence after an initial procedure. This study was undertaken to analyze the effects of gamma knife radiosurgery in recurrent TN after other procedures. Methods Eleven recurrent TN patients after other procedures underwent GKRS in our hospital from September 2004 to August 2016. Seven patients had previously undergone MVD alone, two underwent MVD with partial sensory rhizotomy (PSR), and two underwent RFR. Mean patient age was 60.5 years. We retrospectively analyzed patient's characteristics, clinical results, sites, and divisions of pain. Outcomes were evaluated using the Visual Analog Scales (VAS) score. Results Right sides were more prevalent than left sides (7:4). The most common distribution of pain was V1 + V2 division (n = 5) following V2 + V3 (n = 3), V2 (n = 2), and V1 + V2 + V3 (n = 1) division. Median GKRS dose was 80 Gy and the mean interval between the prior treatment and GKRS was 74.45 months. The final outcomes of subsequent GKRS were satisfactory in most cases, and at 12 months postoperatively ten patients (90.0%) had a VAS score of ≤ 3. Conclusions In this study, the clinical result of GKRS was satisfactory. Invasive procedures, such as, MVD, RFR are initially effective in TN patients, but GKRS provides a safe and satisfactory treatment modality for those who recurred after prior invasive treatments.http://www.kosinmedj.org/upload/pdf/ksmc034-01-04.pdfgamma knife radiosurgeryrecurrent trigeminal neuralgiavisual analog scale score
spellingShingle Jae Meen Lee
Beong Ik Hur
Chang Hwa Choi
Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures
Kosin Medical Journal
gamma knife radiosurgery
recurrent trigeminal neuralgia
visual analog scale score
title Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures
title_full Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures
title_fullStr Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures
title_full_unstemmed Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures
title_short Gamma Knife Radiosurgery in Recurrent Trigeminal Neuralgia after Other Procedures
title_sort gamma knife radiosurgery in recurrent trigeminal neuralgia after other procedures
topic gamma knife radiosurgery
recurrent trigeminal neuralgia
visual analog scale score
url http://www.kosinmedj.org/upload/pdf/ksmc034-01-04.pdf
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