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Exploring knowledge gaps in the understanding of peripheral and deep en face margin assessment.
Archives of Dermatological Research 2023 May 25
In 2022, National Comprehensive Cancer Network updated the phrase of "complete circumferential peripheral and deep margin assessment (CCPDMA)" to "peripheral and deep en face margin assessment (PDEMA)," which was meant to create more consistency across all treatment modalities and provide clarity to the meaning of total margin evaluation. The aim of this project was to investigate the interpretation of PDEMA across pertinent specialties and to identify any existing knowledge gaps in hopes of improving clinical performance of institutional practice. An electronic survey was administered to medical professionals within the divisions of dermatology and otolaryngology retrieving demographic data and assessing respondents' knowledge on tissue processing techniques and PDEMA. Of the four knowledge-based assessment questions administered, dermatology respondents answered three questions with > 80% accuracy and one question with < 65% accuracy. Otolaryngology respondents answered one question with > 80% accuracy and three with < 65% accuracy. Both groups answered the knowledge-based question evaluating the concept of "what must be true for Mohs or PDEMA to have value" with under 65% accuracy. When comparing dermatology and otolaryngology respondents, only one question which evaluated the proper methods to "achieve processing of the epidermal edge and the base of the tumor along a single plane in the lab" significantly differed between groups, with a percentage correct of 96% for dermatologists compared to 54% for otolaryngologists (p < 0.001). Results were found to be similar when resident physicians were removed from analysis. The overall percent correct for knowledge-based questions was shifted higher for dermatologists compared to otolaryngologists (p = 0.014). This trend was also redemonstrated when analyzing the data excluding residents (p = 0.053).
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