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Biomedical subjects

M Keisch

Publications and source records attributed to M Keisch.

2 recordsLinked to original sources

Design and implementation of a microcomputer-based tutorial in radiation oncology.

The design and implementation of a computer-based training system for radiation oncology was undertaken. A frame-based system was chosen, with factual information from Principles and Practices of Radiation Oncology, by Perez and Brady, as the body of knowledge. Each unit of the system was based on a site (chapter) and consists of three sections: text, review questions, and patient management problems. The text section contains text, tables, and references and defines the information upon which the review questions and clinical cases are based. The review questions are multiple choice and true-false, and immediate feedback is given for both correct and incorrect responses. The patient management problems are interactive and provide alternative methods of presenting information and stimulating problem-oriented thought. The emphasis in all sections is on learning rather than testing. Advantages of a computer-based tutorial include the ability to present large volumes of information easily, the capacity for immediate feedback, and the flexibility of format in presentation of material. Potential applications are discussed.

Computer-Assisted Instruction↗

The role of combined composite resection and irradiation in the management of carcinoma of the oral cavity and oropharynx.

Squamous cell carcinoma of the oral cavity and oropharynx can invade the mandible requiring an "en bloc" or composite resection. With this procedure alone, reported local control rates for advanced stage tumors have been suboptimal suggesting the need for adjuvant therapy. The treatment records of 35 patients were reviewed who were treated with composite resection alone, composite resection plus radiotherapy, or composite resection as a salvage procedure for a primary treatment failure. Combined irradiation and composite resection resulted in a higher local control than patients receiving composite resection alone (72% vs. 43%). There was no difference in complication rates between these two treatment groups. Composite resection as a salvage procedure resulted in local control in 38% of patients through this was associated with a 64% rate of complications. This data and a review of the literature suggest that tumors of the oral cavity and oropharynx with extension to the mandible requiring composite resection probably represent a category of tumors with a high risk of local recurrence and may benefit from adjuvant irradiation.

Aged↗