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Transanal Endoscopic-Assisted Pull-Through Colectomy for Children with High Intestinal Aganglionosis
Ulrike Metzger1, Armin-Johannes Michel1, Mircia-Aurel Ardelean1
1Department of Pediatric and Adolescent Surgery, Paracelsus Medical University Hospital, 5020 Salzburg, Austria.
Insights
This study introduces a modified transanal pull-through colectomy for treating intestinal aganglionosis in children. This technique minimizes surgical trauma by using only an umbilical camera, avoiding additional trocars for improved outcomes.
Area of Science:
- Pediatric Surgery
- Gastrointestinal Surgery
- Surgical Innovation
Background:
- Intestinal aganglionosis, a leading cause of neonatal and infantile intestinal obstruction, requires surgical intervention.
- The standard therapeutic approach involves resection of the affected bowel segment and endorectal pull-through (ERP).
- Traditional ERP may necessitate laparoscopic or laparotomy assistance for complex cases or high aganglionosis.
Observation:
- Two cases are presented detailing a technical modification for a totally transanal pull-through colectomy.
- This novel technique utilizes only an umbilical camera trocar, foregoing additional laparoscopic or abdominal trocars.
- Preparation is advanced transanally, with laparoscopic visualization via the umbilical camera to complete dissection directly through the anus.
Findings:
- The modified procedure allows for complete transanal dissection and pull-through, even in cases typically requiring laparoscopic assistance.
- Instruments are manipulated directly via the anus under laparoscopic vision, enhancing maneuverability.
- This approach potentially reduces trauma to the distal anal channel by eliminating the need for transanal trocars.
Implications:
- This modification combines the benefits of laparoscopic visualization with the minimally invasive advantages of endorectal pull-through.
- The technique offers excellent visualization while preserving the benefits of sparing dissection inherent to ERP.
- It represents a promising advancement for treating pediatric intestinal aganglionosis, potentially leading to reduced patient morbidity.
Abstract:
Intestinal aganglionosis in children is a common cause of neonatal and infantile obstruction or ileus. Diagnosis is based on a histologically proven absence of enteric ganglion cells in deep biopsies of the gut wall. Therapeutic goal is a one-stage repair with a resection of the affected segment. The endorectal pull-through (ERP) can be performed entirely transanally in a lot of the cases. In patients with difficult preparation or a high aganglionosis ERP often needs to be assisted by laparoscopy or laparotomy. We present two cases with a technical modification performing a totally transanal pull-through colectomy without any trocars other than an umbilical camera trocar. The procedure starts with a classical endorectal technique. Usually, the transanal preparation is limited by reaching the colon descendens. A camera trocar is inserted and under laparoscopic vision the preparation is completed placing the instruments directly via the opened anus. After reaching the healthy colon segment, the pull-through is completed transanally. One of the main advantages of ERP is the sparing dissection. Our modification combines advantages of laparoscopy and ERP. The umbilical camera allows an excellent view while the instruments for dissection are used like with ERP without any further trocar or traction of the anal sphincter. The dispensation of any transanal trocar allows a higher grade of freedom in preparation and possibly a smaller trauma on the distal anal channel.
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