Laparoscopic total mesorectal excision with natural orifice specimen extraction

Area of Science:

• Surgical Oncology
• Minimally Invasive Surgery
• Gastrointestinal Surgery

Background:

• Laparoscopic total mesorectal excision (L-TME) is a standard treatment for rectal cancer.
• Abdominal incisions for specimen extraction can lead to complications.
• Natural orifice specimen extraction offers a potential alternative to minimize surgical invasiveness.

Purpose of the Study:

• To evaluate the safety and efficacy of transvaginal or transanal specimen extraction in L-TME.
• To assess the feasibility of avoiding abdominal incisions during rectal cancer surgery.

Main Methods:

• Retrospective review of 21 patients undergoing L-TME with transvaginal or transanal specimen retrieval (Jan 2009-Dec 2011).
• Transvaginal extraction was limited to post-menopausal women requiring hysterectomy.
• Outcomes analyzed included operative time, blood loss, hospital stay, complications, and functional outcomes.

Main Results:

• Successful specimen extraction in all 21 patients via natural orifice approach.
• Median operating time: 185 minutes; estimated blood loss: 48 mL.
• Mean hospital stay: 7.5 days; no surgery-associated deaths or major postoperative complications reported.

Conclusions:

• Transvaginal or transanal specimen extraction is a safe and effective technique in L-TME.
• This natural orifice specimen extraction method successfully avoids abdominal wall incisions and potential complications.
• The procedure demonstrated no functional disorders at follow-up, supporting its clinical utility.