Vestibular Schwannoma
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Research results from University of Toronto update knowledge of vestibular schwannoma
2009 JUN 22 - (NewsRx.com) -- "We describe a novel technique of cranioplasty using a vascularized mastoid bone flap in patients after translabyrinthine excision of vestibular schwannomas (VS). Postoperative outcomes in terms of pinna and postauricular deformity are evaluated. Retrospective study," scientists writing in the journal Skull Base - an Interdisciplinary Approach report. "Tertiary referral center. Seventeen patients underwent cranioplasty with bone flap after translabyrinthine VS excision. At minimum follow-up of 12 months, none had a cerebrospinal fluid (CSF) leak. The measured pinna projections between the operated and non-operated sides had a mean difference of 0.80 mm (+/- 1.70), which is not statistically significant (p > 0.05). The mean depth of the postauricular depressions was 1.38 mm (+/- 0.93). Over the same period, 10 patients underwent translabyrinthine VS surgery without cranioplasty. In this group, there was a significant difference of 4.71 mm (+/- 1.53) in mean pinna underprojections on the operated sides compared with the non-operated sides. Compared with patients who have undergone cranioplasty, the retroauricular depressions were significantly deeper (p < 0.05) with a mean depth of 2.92 mm (+/- 1.21)," wrote H.W. Yuen and colleagues, University of Toronto. The researchers concluded: "Vascularized mastoid cortical bone flap cranioplasty is a simple and effective technique to ameliorate the pinna and retroauricular deformities after translabyrinthine VS excision without increased surgical cost or the use of alloplastic materials." Yuen and colleagues published their study in Skull Base - an Interdisciplinary Approach (Vascularized Mastoid Bone Flap Cranioplasty after Translabyrinthine Vestibular Schwannoma Surgery. Skull Base - an Interdisciplinary Approach, 2009;19(3):193-201). Additional information can be obtained by contacting J.M. Chen, University of Toronto, Sunnybrook Health Science Center, Dept. of Otolaryngology Head & Neck Surgery, 2075 Bayview Avenue, M1-102, Toronto, ON M4N 3M5, Canada. The publisher of the journal Skull Base - an Interdisciplinary Approach can be contacted at: Thieme Medical Publ Inc., 333 Seventh Avenue, New York, NY 10001, USA. Keywords: Canada, Toronto, Bone, Neurilemmoma, Oncology, Surgery, Vestibular Schwannoma, University of Toronto. This article was prepared by Clinical Oncology Week editors from staff and other reports. Copyright 2009, Clinical Oncology Week via NewsRx.com.
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