Incidence of Epinephrine Reactions With Local Anesthesia in Mohs Micrographic Surgery.

BACKGROUND: The incidence of reactions to epinephrine-containing local anesthetics in Mohs micrographic surgery (MMS) has not been established. OBJECTIVE: To estimate the incidence of epinephrine-induced reactions from local anesthetics in patients who undergo MMS for the removal of cutaneous malignancies. METHODS: From 2016 to 2018, 200 MMS patients were recruited from the authors' surgical center. Assessments were obtained throughout the entirety of the Mohs cases during a single visit. RESULTS: This study estimated the incidence of epinephrine reactions in patients who undergo MMS to be 2.0% (95% confidence interval: 0.1%-3.9%). No relationship between epinephrine dose and incidence of adverse effects was found. Patient age was a significant risk factor for the development of an epinephrine reaction. CONCLUSION: Systemic reactions to epinephrine from local anesthetics are an infrequent adverse event in MMS cases. The data suggest that the absolute dose of local anesthetic with epinephrine does not correlate with the risk of developing an epinephrine reaction. Older age seems to have a protective effect.

Hooked on Hooks? A Study in the Utilization of Skin Hooks.

BACKGROUND: The skin hook is a valuable instrument used in the practice of dermatologic surgery. However, because of numerous factors, the degree of its use varies extensively. OBJECTIVE: The purpose of this study was to examine practice trends among dermatologic surgeons regarding the use of skin hooks, as well as analyze factors influencing their use. METHODS: A survey comprising 14 questions was distributed to members of the American College of Mohs Surgery and the American Society for Dermatologic Surgery. Results were recorded, and statistical analysis was conducted using the 2-sample z-test to compare 2 population proportions. RESULTS: Five hundred seventy-one responses were received, with comments. 85.1% of respondents reported using skin hooks. Their use was further characterized as minimal (20.7%), moderate (29.0%), and extensive (35.4%). The utilization of skin hooks was additionally categorized based on age, gender, fellowship training, number of years in practice, practice setting, and history of experience/observance of a sharps exposure. Only the presence or absence of fellowship training demonstrated a statistically significant difference in the use of skin hooks. CONCLUSION: Skin hooks are highly used tools among dermatologic surgeons. Their use requires appropriate training and experience, and care must be taken to minimize risk of exposure.