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Randomized Controlled Trial
. 2021 Nov;35(11):6291-6299.
doi: 10.1007/s00464-020-08129-8. Epub 2020 Nov 4.

The modified endoscopic retrograde appendicitis therapy versus antibiotic therapy alone for acute uncomplicated appendicitis in children

Jianqin Kang #  1 , Wei Zhang #  1 , Lingchao Zeng  2 , Yan Lin  1 , Junqing Wu  1 , Nini Zhang  1 , Xiaomin Xie  1 , Yu Zhang  1 , Xiangzeng Liu  1 , Baoxi Wang  1 , Ruijing Yang  3 , Xun Jiang  4
Affiliations
Randomized Controlled Trial

The modified endoscopic retrograde appendicitis therapy versus antibiotic therapy alone for acute uncomplicated appendicitis in children

Jianqin Kang et al. Surg Endosc. 2021 Nov.

Abstract

Background: Endoscopic retrograde appendicitis therapy (ERAT) is an emerging endoscopic treatment modality for acute uncomplicated appendicitis (AUA) supported by several case series. However, to date, systematic studies have not been conducted in children and the prospective comparative data are lacking. Moreover, due to a concern for future malignancy risk in children from ionizing radiation, we used contrast-enhanced ultrasound (CEUS) instead of endoscopic retrograde appendiceal radiography (ERAR). Therefore, we conducted a prospective, randomized control clinical trial to compare the modified ERAT (mERAT) to antibiotic therapy in children with AUA. The aim of this study was to evaluate the safety and feasibility and of mERAT in the treatment of hospitalized children with AUA.

Methods: Children with AUA, confirmed by ultrasonography and or abdominal computed tomography, were consecutively enrolled from October 2018 to February, 2020. They were randomly assigned to receive mERAT or routine antibiotic treatment. Patients were followed until May, 2020. Th primary outcome variable was the duration of relief of the abdominal pain after treatment. We collected patient's demographics, ultrasonic imaging findings, colonoscopy findings, and treatment outcomes of the mERAT and adverse even associated with mERAT.

Results: A total of 83 children were enrolled. 36 were randomized to mERAT and 47 to antibiotics treatment. All children in the mERAT group had endoscopic confirmed acute uncomplicated appendicitis, and there were no significant complications. However, 9 of patients in antibiotic group were poor responsive to treatment and switched to mERAT. The overall success rate of treatment with mERAT (100%) was significantly higher than that of antibiotics (80.9%) (P = 0.004). The median time to discharge was significantly shorter in mERAT group than in antibiotics treatment group [6.0 ± 1.76 days] (P = 0.004).

Conclusions: mERAT provide a new alternative therapeutic option for childhood with AUA, especially for families who are reluctant to undergo an appendectomy.

Keywords: Acute appendicitis; Colonoscopy; Endoscopic retrograde appendicitis therapy; Endoscopic therapy; Microbubble contrast enhanced ultrasound; Minimal invasive therapy.

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