Transrectal ultrasound and fluoroscopy-guided drainage of deep pelvic collections in children

Purpose: Pediatric deep pelvic abscesses generally occur as a complication of perforated appendicitis or after laparoscopic appendectomy. We describe our technique and experience in imaging-guided transrectal drainage (TRD) of deep pelvic abscesses in children. Methods: From January 2005 to November 2008, imaging-guided TRD was attempted in 29 children. The procedure records and medical records were reviewed retrospectively. Results: Twenty-nine TRD procedures were performed in 17 males and 12 female patients. The mean age was 11.8 years (range, 3.8-15.9 years). Fourteen patients required TRD after an abdominal operative procedure: laparoscopic appendectomy (n = 9), open appendectomy (n = 3), exploratory celiotomy for gunshot wound (n = 1), and exploratory celiotomy with intestinal resection for adhesive bowel obstruction (n = 1). Fifteen patients were referred for TRD as initial therapy for deep pelvic fluid collections: perforated appendicitis (n = 14) and Crohn perforation (n = 1). Twenty-seven (93.1%) procedures were successful, described as either placement of a TRD catheter or aspiration of the deep pelvic fluid using transrectal approach. There were no procedure-related complications. Conclusions: Imaging-guided TRD in children is a safe and easy procedure that allows drainage of deep pelvic abscesses that are otherwise not easily accessible.