Endoscopic ultrasound-guided drainage of pelvic abscess: A case series of 8 patients

摘要

AIM: To show the safety and effectiveness of endo-scopic ultrasound(EUS)-guided drainage of pelvic ab-scess that were inaccessible for percutaneous drainage. METHODS: Eight consecutive patients with pelvic abscess that were not amenable to drainage under computed tomography(CT) guidance were referred for EUS-guided drainage. The underlying cause of the abscesses included diverticulitis in 4, postsurgical surgi-cal complications in 2, iatrogenic after enema in 1, and Crohn's disease in 1 patient. Abscesses were all drained under EUS guidance via a transrectal or transsigmoidal approach. RESULTS: EUS-guided placement of one or two 7 Fr pigtail stents was technically successful and uneventful in all 8 patients(100%). The abscess was perisigmoidal in 2 and was multilocular in 4 patients. All procedures were performed under conscious sedation and without fluoroscopic monitoring. Fluid samples were success-fully retrieved for microbiological studies in all cases and antibiotic policy was adjusted according to cultureresults in 5 patients. Follow-up CT showed complete re-covery and disappearance of abscess. The stents were retrieved by sigmoidoscopy in only two patients and had spontaneously migrated to outside in six patients. All drainage procedures resulted in a favourable clinical outcome. All patients became afebrile within 24 h after drainage and the mean duration of the postprocedure hospital stay was 8 d(range 4-14). Within a median follow up period of 38 mo(range 12-52) no recurrence was reported. CONCLUSION: We conclude that EUS-guided drain-age of pelvic abscesses without fluoroscopic monitoring is a minimally invasive, safe and effective approach that should be considered in selected patients.