Acoustic Neuroma: Consensus on Systems for Reporting Results (Keio University International Symposia for Life Sciences and Medicine, 10)

This volume of the Keio University International Symposia for LifeSciences and Medicine contains the proceedings of the eleventh symposium held under the sponsorship of the Keio University Medical Science Fund. As explained in the Opening Remarks by the President of Keio University, the fund was established by the generous donation of Dr. Mitsunada Sakaguchi. The Keio University International Symposia for Life Sciences and Medicine constitute one of the core activities sponsored by the fund, the objective of which is to contribute to the international community by developing human resources, promoting scientific knowledge, and encouraging mutual exchange. Each year, the Committee of the International Symposia for Life Sciences and Medicine selects the most significant symposium topic from applications received from the Keio medical community. The publication of the proceedings is intended to publicize and disseminate the information arising from the lively discussions of the most exciting and current issues presented during the symposium. On behalf of the Committee, I am most grateful to Dr. Mitsunada Sakaguchi, who made the symposia series possible. Weare also grateful to the prominent speakers for their contribution to this volume. In addition,wewould liketo acknowledge the efficientorganizational work performed by the members of the program committee and the staff of the fund. Naoki Aikawa,M.D.,D.M.Sc., EA.C.S. Front Matter....Pages I-XVI Front Matter....Pages 1-1 Proposal for Reporting Size of Vestibular Schwannoma....Pages 3-7 Proposal for Reporting on Size and Site of Residual Vestibular Schwannoma....Pages 9-11 Classification of Vestibular Schwannoma (Acoustic Neuroma)....Pages 13-16 The Size of the Tumor in Acoustic Neuroma: Proposal for a Reporting System....Pages 17-24 Proposal for Definition of Tumor Size....Pages 25-27 Classification of Tumor Size from the Point of View of Functional Preservation, Based Upon Our 53 Surgical Cases with Acoustic Neuroma....Pages 29-34 Definition of Tumor Size of Vestibular Schwannomas....Pages 35-38 Surgical Classification and Predictive Factors in Acoustic Neuromas....Pages 39-43 A Classification System for Vestibular Schwannomas....Pages 45-48 Measurement of Tumor Volume in Acoustic Neurinomas....Pages 49-53 Tumor Volume Measurements of Acoustic Neuromas with MR Imaging....Pages 55-61 Volume Analysis and Examination of Parameters of the Tumor Diameter by Three-dimensional Reconstruction of Vestibular Schwannomas....Pages 63-70 Front Matter....Pages 71-71 Moffat Classification of Facial Nerve Function....Pages 73-78 Which International System Must be Chosen to Assess the Facial Function Before and After Acoustic Neuroma Treatment?....Pages 79-83 Preservation of Facial Nerve Function After Acoustic Neuroma Surgery: Modification of the Facial Nerve Grading System....Pages 85-89 Assessment of Facial Nerve Function Following Acoustic Neuroma Surgery: Facial Nerve Grading Systems....Pages 91-98 Front Matter....Pages 99-99 Patient Selection and Method of Evaluation for Hearing Preservation in Acoustic Neuroma Surgery....Pages 101-105 Some Proposals on Reporting Systems in Acoustic Neuroma....Pages 107-112 Outcome Reporting in Hearing Preservation Surgery:The Place of the MRI Follow-Up....Pages 113-116 New Classification of Postoperative Hearing Results Following Acoustic Neuroma Surgery....Pages 117-120 Front Matter....Pages 99-99 Sense and Nonsense of Hearing After Vestibular Schwannoma Surgery....Pages 121-124 Front Matter....Pages 125-125 Long-Term Follow-up Results with Audiological Assessment After Fractionated Stereotactic Radiotherapy for Vestibular Schwannomas....Pages 127-128 Gamma Knife Radiosurgery in Vestibular Schwannomas: Clinical and Radiological Impact on the Tumor Course....Pages 129-138 Front Matter....Pages 139-139 Functional Staging of Acoustic Neuromas....Pages 141-146 Evaluation of Tinnitus Before and After Microsurgical Resection of Acoustic Tumors....Pages 147-147 Indices of Facial Features Obtained from Contour Extraction with Image Processing and Its Application to Objective Estimation of Facial Palsy....Pages 149-158 Front Matter....Pages 159-159 Session I: Reporting the Size of Vestibular Schwannomas....Pages 161-162 Session I: Reporting System for the Size and Site of Residual Vestibular Schwannomas....Pages 163-164 Session II: Grading Systems for Facial Nerve Function....Pages 165-167 Session III: Grading Systems for Preoperative and Postoperative Hearing....Pages 169-171 Session IV: Evaluation of Preoperative Symptoms and Postoperative Complications....Pages 173-175 Session V: Evaluation of the Effect of Radiotherapy....Pages 177-180 Session VI: Other Issues....Pages 181-182 Appendix: Results of Questionnaires of Reporting System....Pages 183-192 Back Matter....Pages 193-194

With increasing numbers of reports on surgical and nonsurgical treatment of acoustic neuroma, standardization of reporting systems has become more and more important. For that purpose, the 11th Keio International Symposium for Life Sciences and Medicine, the Consensus Meeting on Systems for Reporting Results in Acoustic Neuroma, brought together researchers from Japan and other parts of the world. This volume is a compilation of papers from the symposium on standardization of evaluation and reporting systems for acoustic neuroma from such aspects as tumor size, facial nerve function, pre- and postoperative hearing, the effect of radiotherapy, and neurological symptoms. This unique book is a valuable reference for clinicians, researchers, and other professionals working in neurootology, neurosurgery, otolaryngology, audiology, and related fields.