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12-Year Retrospective Analysis of 2,993 Consecutive Skull Base Cases

Perry Mansfield MD., FRCSC., Hannah Goldman, Hofstra University, Natalya Sarkisova BS., University of Oregon.


A 12-year retrospective and ongoing series of skull base case presentations with diagnostic and therapeutic data comprised of 1,429 prospective cases and 2,993 total cases. Pre-treatment symptomatology, physical examination, radiographic findings, treatment strategies, rehabilitative therapies, were collaboratively discussed and recommendations were made. Data was analyzed and findings reported.


The Skull Base Conference is a regional biweekly meeting open to physicians in all specialties with subspecialty training in Neurosurgery, Head & Neck Surgery, Plastic Surgery, Oral-Maxillofacial Surgery, Pathology, Oncology, Neuroradiology, Ophthalmology, Radiation Oncology, Prosthodontics, and other ancillary personnel. There were thirty-four primary presenting physicians; however, diagnosis and treatment decisions were developed and outcome analytics were discussed by all those present.

The study includes a cataloged series of patient data collected and organized by specific physician, physician specialty, date of presentation, gender and age of patient, clinical, radiographic and pathologic diagnosis, and future course of action (if specified). The analysis focuses on Skull Base Conference presentations that took place in the months between January 2004 and July 2016.


Extensive data for this series will be presented, including disease prevalence, diagnosis frequency, tumor staging, gender frequency, age of presentation, and outcome metrics will be discussed. The average age of the patients presented was 56.13 years old, with a range of 15 to 97. There were 732 male and 694 female prospective patients. The total number of diagnoses was 211. The most frequent diagnosis was vestibular schwannoma/acoustic neuroma, with 181 occurrences, 12.7% of the total prospective cases presented. Of the presenting physicians, the predominant specialty was Head & Neck surgery, which presented a total of 838 cases. The average number of cases presented per year was 240.9 and the average number of prospective cases per year was 112.3. Over the 12-year span, a total of 233 conferences were conducted.


This substantial patient experience supports the need for multidisciplinary collaboration in skull base diagnoses. It supports the need for improvement in data tracking by skull base physicians and surgeons in prospective treatment planning by integrating in-hospital and outpatient data portals for long term analysis of best practices.


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