RESUMO
OBJECTIVE: The objective of the study was to determine whether use of topical anesthetic cream increases spontaneous drainage of skin abscesses and reduces the need for procedural sedation. METHODS: A retrospective multicenter cohort study from 3 academic pediatric emergency departments was conducted for randomly selected children with a cutaneous abscess in 2007. Children up to 18 years of age were eligible if they had a skin abscess at presentation. Demographics, abscess characteristics, and use of a topical analgesic were obtained from medical records. RESULTS: Of 300 subjects, 58% were female and the median age was 7.8 years (interquartile range, 2-15 years). Mean abscess size was 3.5 ± 2.4 cm, most commonly located on the lower extremity (30%), buttocks (24%), and face (12%). A drainage procedure was required in 178 children, of whom 9 underwent drainage in the operating room. Of the remaining 169 children who underwent emergency department-based drainage, 110 (65%) had a topical anesthetic agent with an occlusive dressing placed on their abscess before drainage. Use of a topical anesthetic resulted in spontaneous abscess drainage in 26 patients, of whom 3 no longer required any further intervention. In the 166 patients who underwent additional manipulation, procedural sedation was required in 26 (24%) of those who had application of a topical anesthetic and in 24 (41%) of those who had no topical anesthetic (odds ratio, 0.45; 95% confidence interval, 0.23-0.89). CONCLUSIONS: Topical anesthetic cream application before drainage procedures promotes spontaneous drainage and decreases the need for procedural sedation for pediatric cutaneous abscess patients.
