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. 2022 Jun;36(6):3940-3946.
doi: 10.1007/s00464-021-08713-6. Epub 2021 Sep 7.

Quality of oncological resection criteria in minimally invasive esophagectomy

Nicole Faermark  1 , David Fuks  1 , Alexandra Nassar  1 , Jean-Marc Ferraz  1 , Christian Lamer  1 , Marine Lefevre  1 , Brice Gayet  1 , Stéphane Bonnet  2
Affiliations

Quality of oncological resection criteria in minimally invasive esophagectomy

Nicole Faermark et al. Surg Endosc. 2022 Jun.

Abstract

Background: Even though minimally invasive esophageal surgery (MIE) is spreading, questions remain regarding its oncological outcomes. The aim of this study was to assess the quality of oncological resection criteria in MIE.

Methods: All patients undergoing a two-way Ivor Lewis esophagectomy for esophageal or junctional cancer between 2010 and 2020 in a single tertiary upper gastrointestinal surgery ward were analyzed retrospectively. The following oncological criteria were analyzed: lymph node (LN) harvest and location, positive lymph node rate, margins, and R0 rates. They were compared between the MIE group (thoracoscopy + laparoscopy) and the hybrid group (H/O, thoracotomy + laparoscopy).

Results: Among the 240 patients included, 34 (14%) had MIE and 206 a hybrid esophagectomy. Main surgical indication was lower thoracic adenocarcinoma and the rate of neoadjuvant treatments administered (chemotherapy or chemoradiotherapy) was comparable between both groups (p = 1.0). LN harvest was significantly higher in the MIE group (31 ± 9 vs. 28 ± 9, p = 0.04) as well as thoracic LN harvest (14 ± 7 vs. 11 ± 5, p = 0.002). When analyzing patients according to T stage and response to neoadjuvant treatments, patients with T1 and T2 tumors and patients with a poor pathological response (TRG3, 4, 5) had a significantly higher LN harvest when undergoing a minimally invasive approach (p = 0.021 and p = 0.01, respectively). Positive LN rates (1.26 ± 3.63 in the MIE group vs. 1.60 ± 2.84 in the H/O group, p = 0.061), R0 rates (97% vs. 98.5%, p = 0.46) as well as proximal (p = 0.083), distal (p = 0.063), and lateral (p = 0.15) margins were comparable between both approaches.

Conclusion: MIE seems oncologically safe and may even be better than the open approach in terms of LN harvest especially in patients with T1 and T2 tumors and in poor responders.

Keywords: Esophageal cancer; Lymph node harvest; Minimally invasive esophagectomy; Thoracoscopy.

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