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Refinements in surgical techniques for visualized tunnel formation in laparoscopic-assisted anorectoplasty

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Abstract

Purpose

Laparoscopic-assisted anorectoplasty (LAARP) is becoming a more popular procedure for anorectal malformation (ARM) repair. However, the conventional technique for creating pull-through tunnel between the perineal skin and the pelvic floor has been criticized as being semi-blind. This study aims to present a refined version of our previously reported clamp introduction technique for visualized tunnel formation in the center of the sphincter muscle complex (SMC) for rectal pull- through for ARMs.

Methods

A retrospective review was performed for ARM patients who underwent LAARP from Jan 2019 to Jun 2020. Longitudinal muscle tube (LMT) tunnel was created using the clamp-dilator introduction technique: a laparoscopic dilator was used to create a pelvic tunnel within LMT in high ARM, and the clamp introduction under the direct vision technique was performed for creating the perineal tunnel of LMT for both high and intermediate ARMs.

Results

Seventy patients (1–198 days) with high-type (27cases) and intermediate-type (43 cases) ARM underwent LAARP using clamp-dilation introduction technique. No patients suffered from urinary tract injury, recurrent rectourethral fistula, urethral diverticulum and urinary incontinence. One patient suffered from wound infection and rectal retraction which required a redo pull-through on postoperative day 7. Rectal prolapse requiring surgical intervention developed in one patient. Postoperative MRI examination confirmed central placement of the rectum within the LMT in all cases.

Conclusion

Our experience demonstrates that a visualized tunnel formation in the LMT center can be achieved by the clamp-dilator introduction technique in LAARP for both high and intermediate ARMs

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Funding

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Author notes

  1. Long Li and Anxiao Ming contributed equally to this article.

Authors and Affiliations

  1. Department of Pediatric Surgery, Capital Institute of Pediatrics, No.2 Yabao Road, Chaoyang District, Beijing, 100020, People’s Republic of China

    Long Li, Anxiao Ming, Yan Zhou, Hang Xu, Qi Li, Xu Li, Zhen Zhang, Mei Diao & Xianghui Xie

  2. Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, People’s Republic of China

    Yan Zhou

  3. Department of Medical Imaging, Capital Institute of Pediatrics, Beijing, 100020, People’s Republic of China

    Hailin Sun

Authors
  1. Long Li
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  2. Anxiao Ming
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  3. Yan Zhou
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  10. Xianghui Xie
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Corresponding authors

Correspondence to Long Li, Mei Diao or Xianghui Xie.

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The authors have no conflict of interest to disclose.

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Ethical approval was obtained from the Ethics Committee of the Capital Institute of Pediatrics.

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Written informed consents were obtained from the parents before surgery.

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Li, L., Ming, A., Zhou, Y. et al. Refinements in surgical techniques for visualized tunnel formation in laparoscopic-assisted anorectoplasty. Pediatr Surg Int 37, 999–1005 (2021). https://doi.org/10.1007/s00383-021-04909-y

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