Mikhail Vaysberg
University of Florida
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Featured researches published by Mikhail Vaysberg.
Laryngoscope | 2008
Russell W. Hinerman; Daniel J. Indelicato; Robert J. Amdur; Christopher G. Morris; John W. Werning; Mikhail Vaysberg; Jessica Kirwan; William M. Mendenhall
Introduction: Metastatic spread to parotid‐area lymph nodes (PALN) occurs in 1% to 3% of patients with cutaneous squamous cell carcinoma of the head and neck. Presented herein is the University of Florida experience using radiation therapy (RT) to treat patients with PALN metastases from a skin primary.
American Journal of Otolaryngology | 2012
Christopher J. Balamucki; Robert J. Amdur; John W. Werning; Mikhail Vaysberg; Christopher G. Morris; Jessica Kirwan; William M. Mendenhall
PURPOSE To report our experience using radiotherapy alone or combined with surgery to treat adenoid cystic carcinoma of the head and neck. MATERIALS AND METHODS Radiotherapy alone or combined with surgery was used to treat 120 previously untreated patients with adenoid cystic carcinoma (ACC) of the head and neck from August 1966 to March 2008. Patients were treated with curative intent. American Joint Committee on Cancer stage distribution was,T0 (n = 1), T1 (n = 26), T2 (n = 25), T3 (n = 14), T4 (n = 54), N0 (n = 113), N1 (n = 2), N2a (n = 1), N2b (n = 2), and N2c (n = 2). Treatment included surgery with postoperative radiotherapy (n = 71), radiotherapy alone (n = 46), and preoperative radiotherapy and surgery (n = 3). Incidental and clinical perineural invasion was found in 41 (34%) and 35 (29%) patients, respectively. Median follow-up was 8.6 and 11.6 years overall and among living patients, respectively. RESULTS The 10-year overall, cause-specific, and distant metastasis-free survival rates, respectively, were as follows: radiotherapy alone, 37%, 46%, and 76%; surgery and radiotherapy, 57%, 71%, and 62%; and overall, 50%. The 10-year local control rates were as follows: radiotherapy alone, 36%; surgery and radiotherapy, 84%; and overall, 65%. The 10-year neck control rates were as follows: elective nodal irradiation (ENI), 98%; no ENI, 89%; and overall, 95%. CONCLUSIONS Surgery and adjuvant radiotherapy offer the best chance for cure for patients with resectable adenoid cystic carcinomas of the head and neck. Some patients with advanced, incompletely resectable disease can be cured with radiotherapy alone. ENI should be considered for primary sites located in lymphatic-rich regions.
Laryngoscope | 2009
William M. Mendenhall; Robert J. Amdur; Christopher G. Morris; Jessica Kirwan; Robert S. Malyapa; Mikhail Vaysberg; John W. Werning; Nancy P. Mendenhall
To determine the outcomes after radiotherapy (RT) alone or combined with surgery at the University of Florida for patients with carcinomas of the nasal cavity and paranasal sinuses.
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2011
William M. Mendenhall; Robert J. Amdur; Mikhail Vaysberg; Charles M. Mendenhall; John W. Werning
The purpose of this study was to describe the natural history and optimal treatment for head and neck paragangliomas (PGs).
American Journal of Otolaryngology | 2011
William M. Mendenhall; Rui Fernandes; John W. Werning; Mikhail Vaysberg; Robert S. Malyapa; Nancy P. Mendenhall
OBJECTIVE The objective of the study was to discuss the optimal management and treatment outcomes for patients with head and neck osteosarcomas. STUDY DESIGN Review article. METHODS Review of the pertinent literature. RESULTS Osteosarcomas account for approximately 1% or less of all head and neck cancers. The vast majority occur in the mandible and maxilla. The median age is in the fourth decade, with a wide range. They are more likely to recur locally after treatment and distant metastases are observed less often than with the more common osteosarcomas arising in the long bones. The optimal treatment is complete resection. The role of adjuvant chemotherapy is ill-defined. The vast majority of recurrences are observed within 5 years. The 5-year disease-specific and overall survival rates are approximately 60% to 70%. CONCLUSIONS Osteosarcoma of the head and neck is a rare entity that occurs primarily in the mandible and maxilla. The optimal treatment is surgery. Adjuvant radiotherapy should be considered for those with close or positive margins. The role of adjuvant chemotherapy is ill-defined. The likelihood of cure is approximately 60% to 70%.
Laryngoscope | 2010
Roi Dagan; Christopher G. Morris; Jessica Kirwan; John W. Werning; Mikhail Vaysberg; Robert J. Amdur; William M. Mendenhall
To define the role of elective neck dissection during salvage surgery for locally recurrent head and neck squamous cell carcinoma (SCCA) initially treated with elective nodal irradiation (ENI).
American Journal of Clinical Oncology | 2009
Roshan Prabhu; Russell W. Hinerman; Daniel J. Indelicato; Christopher G. Morris; John W. Werning; Mikhail Vaysberg; Robert J. Amdur; Jessica Kirwan; William M. Mendenhall
Objective:Squamous cell carcinoma (SCCA) of the external auditory canal (EAC) is often treated with a combination of surgery and radiotherapy (RT) to optimize the chance of achieving locoregional control. This retrospective review describes a 27-year experience of treating these tumors at the University of Florida. Methods:Thirty patients with histologically confirmed SCCA of the EAC received external-beam radiation (RT) alone or combined with surgical resection between 1976 and 2003. Seven patients were treated with RT alone, 22 with postoperative RT, and 1with preoperative RT. Patients were grouped according to nodal status (N0/N1) and the Stell staging system for tumors of the EAC and middle ear. Early stage was defined as T1/T2 (n = 12) and advanced stage as T3 (n = 18). Median follow-up was 2 years (range, 0.1–19.4 years) with no patients lost to follow-up. Results:The 5-year actuarial probabilities for local control, locoregional control, and cause-specific survival for patients with early stage (T1/T2) versus advanced-stage (T3) tumors were 74% and 55% (P = 0.27), 63% and 38% (P = 0.16), and 70% and 41% (P = 0.04), respectively. The regional control rate was 83% (P = 0.6). There were 12 local recurrences and 4 neck recurrences as the first site of failure. One failure was successfully salvaged with surgery. Five of 23 (21%) patients undergoing surgery had significant complications (grade 3 or 4), whereas 2 of 30 (7%) patients receiving RT experienced grade 3 complications. Conclusion:Patients with early stage disease achieved better local control, locoregional control, and cause-specific survival than those with advanced tumors. Less than half of the patients (13 of 30; 43%) were cured without significant complications, suggesting a suboptimal therapeutic ratio, using current treatment methods.
allergy rhinol (providence) | 2012
Jeremiah A. Alt; Graham T. Whitaker; Robert W. Allan; Mikhail Vaysberg
A unique case of IgG4+ sclerosing disease was diagnosed in the sphenoid sinus, a previously unreported location, and was treated in a novel manner. This study describes the clinical presentation and management of IgG4 sclerosing disease in the paranasal sinuses. A retrospective case review and review of the medical literature were performed. A 38-year-old woman with a 2-year history of constant frontal headaches presented to our clinic. Imaging showed bony destruction of the sphenoid sinus and sellar floor. The patient underwent a right-sided sphenoidotomy with debridement and biopsy. Pathological evaluation showed a dense plasmacytic infiltrate with >150 IgG4+ cells/high-power field. She was subsequently started on a nasal corticosteroid with improved patency of the sphenoid antrostomy. We report an unusual case of a middle-aged woman who presented with IgG4-sclerosing disease (IGSD) isolated to the sphenoid sinus. Although our knowledge concerning treatment in extrapancreatic organs is lacking, there is evidence that glucocorticoid treatment improves nasal sinus opacification on CT findings (Sato Y, Ohshima K, Ichimura K, et al., Ocular adnexal IgG4-related disease has uniform clinicopathology, Pathol Int 58:465–470, 2008). This case study and literature review adds to the growing literature describing IGSD in the head and neck and more specifically isolated to the sphenoid sinus with preliminary data concerning local control with topical steroids.
American Journal of Clinical Oncology | 2011
Russell W. Hinerman; Daniel J. Indelicato; Christopher G. Morris; Jessica Kirwan; John W. Werning; Mikhail Vaysberg; William M. Mendenhall
ObjectivesMaxillary sinus squamous cell carcinoma is commonly diagnosed at an advanced stage and treated using radiotherapy, with or without surgical resection. MethodsFifty-four patients with maxillary sinus squamous cell carcinoma were treated from 1969 to 2006, using radiotherapy, with or without surgical resection. Fifty-two (96%) patients had American Joint Committee on Cancer stages III to IV disease, and 45 (83%) patients had N0 neck disease. ResultsFive-year local control (LC) rates by T-stage were 63% for T2/T3; and 43% for T4. Five-year LC rates for patients treated with radiotherapy preoperatively, postoperatively, and definitively were 61%, 65%, and 37%, respectively. Initially, overall 5-year LC, neck control, and local-regional control were 49%, 82%, and 45%, respectively. The ultimate 5-year LC, neck control, and local regional control after salvage of failures were 51%, 87%, and 50%, respectively. The overall 5-year cause-specific survival was 41%. Thirty-three percent of patients had a severe complication. ConclusionsRadiotherapy, with or without surgical resection, remains an effective tool in treating patients with this disease. LC, cause-specific survival, and complication rates need significant improvement. Treatment details and recommendations are discussed herein.
Laryngoscope | 2015
Michael P. Herman; Roi Dagan; Robert J. Amdur; Christopher G. Morris; John W. Werning; Mikhail Vaysberg; William M. Mendenhall
To evaluate the efficacy of postoperative radiotherapy for oral cavity squamous cell carcinoma (OCSCC) by comparing outcomes of high‐risk subgroups.