Surgical Outcomes of Cerebellopontine angle Tumors in 50 Cases

Document Type: Original

Authors

1 Department of Otorhinolaryngology Head and Neck Surgery, Hazrate Rasul Medical Center, Iran University of Medical Sciences. Tehran, Iran.

2 Department of Otorhinolaryngology Head and Neck Surgery, Isfahan University of Medical Sciences, Isfahan, Iran.

Abstract

Introduction:
To report our experience with a large series of surgical procedures for removal of cerebellopontine angle (CPA) tumors using different approaches.
 
Materials and Methods:
This was a retrospective analysis of 50 patients (mean age, 49 years) with CPA tumors (predominantly acoustic neuroma) who underwent surgical removal using appropriate techniques (principally a translabyrinthine approach) during a 4-year period.
 
Results:
One death occurred during this study. There were nine cases (18%) of cerebrospinal fluid leak, and five patients (10%) were diagnosed as having bacterial meningitis. Complete gross tumor removal was not achieved in four patients (8%). Facial nerve function as measured by the House Brackmann system was recorded in all patients 1 year following surgery: 32% had a score of 1 or 2; 26% had a score of 3 or 4; and 8% had a score of 5 or 6. Other complications included four cases of wound infection.
 
Conclusion: 
The translabyrinthine approach was predominantly used in our series of CPA tumors, and complication rates were comparable with other large case series.

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2. Tos M, Thomasen J, Harmsen A. Results of translabyrinthine removal of 300 acoustic neuroma related to tumor size. Acta Otolaryngol Sppl. 1988; 452: 38-51.

3. Shelton C. Unilateral acoustic tumors: how often do they recur after translabyrinthine removal? Laryngoscope 1995; 105(9): 958-66.

4. Briggs RJ, Luxford WM, Atkins JS Jr, Hitselberger WE. Translabyrinthine removal of large acoustic neuromas. Neurosurgery 1994; 34 (5):785-90.

5. Celikkanat S, Saleh E, Khashaba A, Taiba A, Russo A, Mazzoni A, et al. Cerebrospinal fluid leak after translabyrinthine Acoustic neuromas surgery. Otolaryngol Head Neck Surg 1995; 112: 654-8.

6. Rodgers J, Luxford W. factors affecting the development of cerebrospinal fluid leak and meningitis after acoustic tumor surgery. Laryngoscope 1993; 103(9): 959-62.

 7. Hoffman R. Cerebrospinal fluid leak following acoustic neuroma removal. Laryngoscope 1994; 104: 40-58.

8. Iwai Y, Yamanka K, Ishiguro T. Surgery combined with radiosurgery of large acoustic neuromas. Surg Neurol 2003; 59(4): 283-91.

9. Mass SC, Weit RJ, Dinces E. Complications of the translabyrinthine approach for the removal of acoustic neuromas. Arch Otolaryngol Head Neck Surg 1999; 125(7): 801-4.

 10. Chen Ling, Chen Li-hua, Ling Feng, LIU Yun-sheng, Madjid Samii, Amir Samii. Removal of vestibular schwannoma and facial nerve preservation using small suboccipital retrosigmoid craniotomy. Chin Med J 2010; 123(3): 274-80.

 11. Ashfaq UI Hassan, Ghulam Hassan, Zahida Rasool. Vestibular schoannoma: anatomical, medical and surgical perspective. Int J Med Sci 2013; 1(3): 78-182.