EP.FRI.537 Post-operative antibiotics for cutaneous abscess after incision and drainage: Variations in Clinical Practice or lack of guidelines

Abstract

Abstract Aims Acute cutaneous abscess is a common surgical condition which mostly require incision and drainage. Despite this, there is no standardised national or international guidance on the post-operative antibiotics prescription. Traditionally, antibiotics are not indicated unless complications and/or risk factors such as immunocompromisation, diabetes or cellulitis exist. We aimed to study the local practice of the post-operative antibiotics prescription for cutaneous abscesses in a University teaching hospital in London. Methods A retrospective data collection of emergency general surgical admissions for a period of six months from July to December 2020 was carried out. All patients with superficial skin abscess were included in this analysis. Scrotal, breast and limb abscesses were excluded. Patients’ demographics, Co-morbidities, local and systemic complications were studied. Results A total of 149 patients presented during this period. Mean age was 40 (54% were male). Most common site of abscess was perianal (24%), followed by pilonidal, axilla, back, gluteal, neck, abdominal wall and groin. At total of 108 (72.5%) were managed surgically with incision and drainage, 70 (65%) got antibiotics and only 23 (33%) had indications for it (i.e. diabetic, immunocompromised, sepsis, cellulitis, MRSA carriage) = (χ2[1] =22.03, p<.0001). Co-amoxiclav was the most common post-operative empirical antibiotic prescribed in 61% of the patients. Conclusions This study has identified significant variation in clinical practice regarding post-operative antibiotic usage in superficial abscesses. Further research is required in cooperation with microbiologists to develop standardised evidence-based treatment protocol for management of such common surgical condition.