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.

Keywords

Main Subjects


 
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.