Minimally Invasive Complete Mesocolic Excision with Extended Lymphadenectomy for Colon Cancer

2021 ◽  
pp. 643-662
Author(s):  
Patricia Sylla
2018 ◽  
Vol 3 (1) ◽  
pp. 17-29 ◽  
Author(s):  
Roland S. Croner ◽  
Henry Ptok ◽  
Susanne Merkel ◽  
Werner Hohenberger

AbstractThe definition of complete mesocolic excision (CME) for colon carcinomas revolutionized the way of colon surgery. This technique conquered the world starting from Erlangen. Nevertheless, currently new developments especially in minimally invasive surgery challenge CME to become settled as a standard of care. To understand the evolution of CME, anatomical details occurring during embryogenesis and their variations have to be considered. This knowledge is indispensable to transfer CME from an open to a minimally invasive setting. Conventional surgery for colon cancer (non-CME) has a morbidity of 12.1–28.5% and a 3.7% mortality risk vs. 12–36.4% morbidity and 2.1–3% mortality for open CME. The morbidity of laparoscopic CME is between 4 and 31% with a mortality of 0.5–0.9%. In robotic assisted surgery, morbidity between 10 and 25% with a mortality of 1% was published. The cancer-related survival after 3 and 5 years for open CME is respectively 91.3–95% and 90% vs. 87% and 74% for non-CME. For laparoscopic CME the 3- and 5-year cancer-related survival is 87.8–97% and 79.5–80.2%. In stage UICC III the 3- and 5-year cancer-related survival is 83.9% and 80.8% in the Erlangen data of open technique vs. 75.4% and 65.5–71.7% for laparoscopic surgery. For stage UICC III the 3- and 5-year local tumor recurrence is 3.8%. The published data and the results from Erlangen demonstrate that CME is safe in experienced hands with no increased morbidity. It offers an obvious survival benefit for the patients which can be achieved solely by surgery. Teaching programs are needed for minimally invasive CME to facilitate this technique in the same quality compared to open surgery. Passing these challenges CME will become the standard of care for patients with colon carcinomas offering all benefits of minimally invasive surgery and oncological outcome.


2020 ◽  
Author(s):  
Dirk Wilhelm ◽  
Thomas Vogel ◽  
Philipp-Alexander Neumann ◽  
Helmut Friess ◽  
Michael Kranzfelder

Summary Background Robotic surgery offers favorable prerequisites for complex minimally invasive surgeries which are delivered by higher degrees of freedom, improved instrument stability, and a perfect visualization in 3D which is fully surgeon controlled. In this article we aim to assess its impact on complete mesocolic excision (CME) in colon cancer and to answer the question of whether the current evidence expresses a need for robotic surgery for this indication. Methods Retrospective analysis and review of the current literature on complete mesocolic excision for colon cancer comparing the outcome after open, laparoscopic, and robotic approaches. Results Complete mesocolic excision results in improved disease-free survival and reduced local recurrence, but turns out to be complex and prone to complications. Introduced in open surgery, the transfer to minimally invasive surgery resulted in comparable results, however, with high conversion rates. In comparison, robotic surgery shows a reduced conversion rate and a tendency toward higher lymph node yield. Data, however, are insufficient and no high-quality studies have been published to date. Almost no oncologic follow-up data are available in the literature. Conclusion The current data do not allow for a reliable conclusion on the need of robotic surgery for CME, but show results which hypothesize an equivalence if not superiority to laparoscopy. Due to recently published technical improvements for robotic CME and supplementary features of this method, we suppose that this approach will gain in importance in the future.


2021 ◽  
Author(s):  
Richard Bernhoff ◽  
Annika Sjövall ◽  
Fredrik Granath ◽  
Torbjörn Holm ◽  
Anna Martling ◽  
...  

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