Microvascular Decompression for Trigeminal Neuralgia

Authors

  • AHSAN NUMAN Department of Neurosurgery, Services Institute of Medical Sciences (SIMS)/ S ervices Hospital, Lahore
  • MANZOOR AHMAD Department of Neurosurgery, Services Institute of Medical Sciences (SIMS)/ S ervices Hospital, Lahore
  • M. ASHRAF SHAHEEN Department of Neurosurgery, Services Institute of Medical Sciences (SIMS)/ S ervices Hospital, Lahore
  • M. Anwar Ch Department of Neurosurgery, Services Institute of Medical Sciences (SIMS)/ S ervices Hospital, Lahore
  • Rizwan Butt Department of Neurosurgery, Services Institute of Medical Sciences (SIMS)/ S ervices Hospital, Lahore

Abstract

Background: The majority of patients with trigeminal neuralgia can be managed by medical treatment. Those patients who are not relieved with medicines can be offered some surgical treatment. Microvascular decompress-ion (MVD) of the trigeminal nerve in the root entry zone is the most suitable surgical procedure.
Methods: This study included 80 patients who underwent MVD for trigeminal neuralgia from January 2002 to December 2005.
Results: Out of the total 80 patients, 48 (60%) were males and 32 (40%) were females with male: female ratio of 3:2. The maximum number of patients was in the 6th decade of life (30%) followed by 7th and 5th decades (over 18%). Peroperatively, an arterial loop was found compressing the 5th nerve in the root entry zone in 60 (75%) patients, only veins in 10 (12.5%) and an artery and a vein (combined) in 6 (7.5%) patients.
Conclusion: An arterial loop compressing the trigeminal nerve at root entry zone is the commonest finding at microvascular decompression (75%), followed by veins (12.5%).
Keywords: Trigeminal neuralgia, Microvascular decompression, Root entry zone

References

Jennett B, Lindsay KW, editors. In: An introduction to neurosurgery. Butterworth – Heinemann Ltd. 5th ed; 1994: 310-11.
2. Grant GA, Loeser JD. Trigeminal Neuralgia. In: Renga-chary SS and Ellenbogen RG, editors. Principals of Neurosurgery. 2nd ed. Elsevier Mosby (UK); 2005: 777-84.
3. Barker FG, Jennetta PJ, Bissonette DJ, Larkins MV, Jho HD. The long – term outcome of microvascular de-compression for trigeminal neuralgia. The New Eng-land Journal of Medicine 1996; 334 (17): 1077-84.
4. Wilkins RH. Trigeminal Neuralgia: Introduction. In: Wilkins RH and Rengachary SS, editors. Neurosurgery. McGraw – Hill Book Company (USA); 1985: 2337-44.
5. Apfelbaum RI. Surgical Management of Disorders of the Lower Cranial Nerves. In: Schmidek HH and Sweet WH, editors. Operative Neurosurgical Techniques. WB. Saunders Company (USA); 1988: 1097-1109.
6. Miles JB. Surgical Treatment of Pain. In: Miller JB, editor. North – field’s Surgery of the Central Nervous System. Blackwell Scientific Publications (UK); 1987: 667-77.
7. Jannetta PJ. Trigeminal Neuralgia: Treatment by Mic-rovascular Decompression. In: Wilkins RH and Renga-chary SS, editors. Neurosurgery. McGraw – Hill Book Company (USA); 1985: 2357-63.
8. Lunsford LD. Trigeminal Neuralgia: Treatment by Gly-cerol Rhizotomy. In: Wilkins RH and Rengachary SS, editors. Neurosurgery. McGraw – Hill Book Company (USA); 1985: 2351-56.
9. Nugent GR. Trigeminal Neuralgia: Treatment by Percu-taneous Electro-coagulation. In: Wilkins RH and Ren-gachary SS, editors. Neurosurgery. McGraw – Hill Book Company (USA); 1985: 2345-50.
10. Pollock BE, Brown PD. Stereotactic Radiosurgery. In: Rengachary SS and Ellenbogen RG, editors. Principles of Neurosurgery, 2nd ed. Elsevier Mosby (UK); 2005: 732-37.
11. Li ST, Wang X, Pan Q, Hai J, Liu N, Shen F et al. Stud-ies on the operative outcomes and mechanisms of micro-vascular decompression in treating typical and atypical trigeminal neuralgia. Clin J Pain 2005; 21 (4): 311-6.
12. Broggi G, Ferroli P, Franzini A et al. Microvascular de-compression for trigeminal neuralgia: Comments on a series of 250 cases, including 10 patients with multiple sclerosis. J Neurol Neurosurg Psychiatry 2000; 68 (1): 59-64.
13. Toe C, Nakaji P, Mobbs RJ. Endoscope – assisted mic-rovascular decompression for trigeminal neuralgia: te-chnical case report. Neurosurgery 2006; 59 (4-2): 489-90.
14. El-Garem HF, Badr-El-Dine M, Talaat AM, Magnan J. Endoscopy as a tool in minimally invasive trigeminal neuralgia surgery. Otol Neurotol. 2002; 23 (2): 132-5.
15. Jarrahy R, Eby JB, Cha ST, Shahinian HK. Fully Endo-scopic vascular decompression of the trigeminal nerve. Minim Invasive Neurosurg. 2002; 45 (1): 32-5

Downloads

Published

2018-11-04

Issue

Section

Original Articles