Appendicitis Perforated Clinical Trial
Official title:
Assessing the Longitudinal Outcomes of Piperacillin/Tazobactam Versus ceftriAxone and Metronidazole for Children With Perforated Appendicitis (ALPACA): a Randomized Controlled Trial
This study is an internal pilot for a multicenter, blinded randomized controlled trial. The purpose of the multicenter trial is to determine whether post-operative piperacillin/tazobactam is more effective than ceftriaxone and metronidazole for children treated with laparoscopic appendectomy for perforated appendicitis. We plan to conduct an internal pilot study to determine whether a blinded multicenter randomized controlled trial is feasible.
Acute appendicitis is the most common indication for emergency surgery in children. The management of this condition is typically an urgent laparoscopic appendectomy under general anesthesia. If the appendix is found to be perforated at the time of surgery, then patients need to stay in hospital for intravenous antibiotics. Patients who do not respond to antibiotic therapy experience prolonged length of stay, need for additional procedures (such as percutaneous drain insertion), or other complications. This represents significant morbidity for patients and their families. Children with perforated appendicitis were previously treated with post-operative ampicillin, gentamicin, and metronidazole (also known as "triple therapy"). In 2008, a randomized controlled trial showed that triple therapy is non-inferior to ceftriaxone and metronidazole (CM) in terms of intra-abdominal abscess formation and wound infection. CM is also less expensive and has a simplified dosing regimen. As such, post-operative CM became the standard of care for perforated appendicitis at most children's hospitals. In 2021, an open-label RCT suggested that piperacillin/tazobactam (PT) is more effective than CM for children with perforated appendicitis. Patients randomized to PT had a reduced rate of intra-abdominal abscess formation compared to those treated with CM (odds ratio (OR) 4.80, p=0.002). This trial was not blinded and there was no allocation concealment. In contrast, a multicenter, observational study reported no difference in the rate of intra-abdominal abscess formation among patients treated with PT compared to CM. The conflicting results of these two studies add further uncertainty regarding the choice of antibiotics for these patients. Another factor that should be considered regarding the use of PT versus CM in children with perforated appendicitis is antibiotic stewardship. PT is a broad-spectrum antibiotic with increased effectiveness against Pseudomonas aeruginosa and resistant Escherichia coli. As a result, this medication is often reserved for patients with confirmed Pseudomonas infection, oncology patients with febrile neutropenia, or those who are critically ill and admitted to the intensive care unit. The current study is an internal pilot for a multicenter, blinded randomized controlled trial. The purpose of the multicenter trial is to determine whether post-operative piperacillin/tazobactam is more effective than ceftriaxone and metronidazole for children treated with laparoscopic appendectomy for perforated appendicitis. We plan to conduct an internal pilot study to determine whether a blinded multicenter randomized controlled trial is feasible. ;
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