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ISSN: 1895-4588
Videosurgery and Other Miniinvasive Techniques
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3/2022
vol. 17
 
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abstract:
Original paper

Carbon nanoparticle-assisted natural orifice specimen extraction surgery with left colic artery preservation: a retrospective study

Mengao Qian
1
,
Shangyu Yin
1
,
Kepeng Hu
1
,
Quanpeng Wang
1
,
Weilan Cao
2
,
Changbao Liu
2
,
Zhonglin Wang
2
,
Chongjie Huang
2

  1. The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
  2. Department of Colorectal Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
Videosurgery Miniinv 2022; 17 (3): 498–505
DOI: https://doi.org/10.5114/wiitm.2022.116284
Online publish date: 2022/05/13
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Introduction
Natural orifice specimen extraction surgery (NOSES) has been widely regarded as a new technology in minimally invasive surgery. Meanwhile, carbon nanoparticles have been increasingly used for lymph node tracing in colorectal cancer surgery.

Aim
To evaluate the effectiveness and feasibility of carbon nanoparticle-assisted natural orifice specimen extraction surgery with left colic artery preservation for total laparoscopic colorectal resection.

Material and methods
We retrospectively reviewed the medical records of 83 patients diagnosed with sigmoid colon cancer or mid- and upper-rectal cancer from October 2017 to June 2020. These patients were divided into the NOSES group who underwent left colic artery preservation NOSES, being injected with a carbon nanoparticle suspension under colonoscopy the day before surgery, and the LA group, who underwent left colic artery preservation laparoscopic surgery. Surgical outcomes were retrospectively analyzed.

Results
The mean number of harvested lymph nodes (p < 0.001) in the NOSES group was higher than in the LA group. Conversely, as regards pain score (p < 0.001) and postoperative hospital stay (p = 0.035), the LA group has higher mean values. The incidence of perioperative complications (p = 0.385) was 5.3% for the NOSES group compared to 13.3% for the LA group.

Conclusions
Preoperative colonoscopic injection of a carbon nanoparticle suspension is a feasible and practical solution to dissect lymph nodes surrounding the inferior mesenteric artery without affecting the left colic artery in patients with colorectal cancer and about to receive NOSES. Moreover, NOSES combined with this approach leads to less postoperative pain and shorter hospital stays.

keywords:

colorectal surgery, laparoscope, carbon nanoparticle suspension, natural orifice specimen extraction surgery, left colic artery preservation
  
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