Abstract
Purpose
It remains a technical challenge to perform “superior mesenteric artery (SMA) first” approach for laparoscopic right hemicolectomy with complete mesocolon excision (CME) as the vascular anatomy of the right colon varies a lot, which may cause difficulty in early location of SMA and the risk of vascular damage during central vascular ligation (CVL). The purpose of this study was to describe a new “SMA first” approach for laparoscopic CME with CVL in right hemicolectomy with Treitz’s ligament and ileocolic vascular pedicle as the anatomical landmarks for early identification of and exposure of SMA.
Methods
This procedure was performed on 21 patients with right colon cancer between March 2020 and August 2021. To start, the transverse mesocolon was retracted to expose the ligament of Treitz, and the pedicle of ileocolic vessels was anteriorly grasped. Next, the peritoneum near the right border of the ligament of Treitz was divided along the left side of SMA until the peritoneum below the ileocolic vessels. Next, the mesenteric lymphatic adipose tissue outside of the sheath of SMA was dissected from medial to lateral. Then, laparoscopic right hemicolectomy with complete mesocolic excision (CME) was performed. Patients’ preoperative baseline characteristics and intraoperative and postoperative complications were examined.
Results
The median operative time was 180 min, and the median intraoperative blood loss was 50 ml (interquartile range 40–90). Chylous leakage occurred in four patients, and all the patients resolved with percutaneous drainage. The total harvested lymph nodes was 21.0 (range 16–27). The median times to first flatus and liquid diet intake were both 3.0 days. The median number of postoperative hospital days was 10.0 days. No severe postoperative complications, such as abdominal infection, anastomotic leakage, or bleeding, were observed.
Conclusions
This new “SMA first” approach is safe and technically feasible for laparoscopic CME with CVL in right hemicolectomy.
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Acknowledgment
The authors thank Jiaming Cao, who helped to prepare the video.
Funding
This study was funded by Scientific Research Project of Suining Central Hospital (Granted No. 2019y53) and Scientific Research Project of Suining City (Granted No. 2014s31).
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This study was approved by the ethics committee of Suining Central Hospital. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Luo, W., Cai, Z., Li, F. et al. Laparoscopic Complete Mesocolic Excision with Central Vascular Ligation (CME + CVL) for Right-Sided Colon Cancer: A New “Superior Mesenteric Artery First” Approach. Ann Surg Oncol 29, 5066–5073 (2022). https://doi.org/10.1245/s10434-022-11773-0
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DOI: https://doi.org/10.1245/s10434-022-11773-0