Abstract
To explore the change and feasibility of surgical techniques of laparoscopic transhiatal (TH)-lower mediastinal lymph node dissection (LMLND) for adenocarcinoma of the esophagogastric junction (AEG) according to Idea, Development, Exploration, Assessment, and Long-term follow-up (IDEAL) 2a standards. Patients diagnosed with AEG who underwent laparoscopic TH-LMLND were prospectively included from April 14, 2020, to March 26, 2021. Clinical and pathological information as well as surgical outcomes were quantitatively analyzed. Semistructured interviews with the surgeon after each operation were qualitatively analyzed. Thirty-five patients were included. There were no cases of transition to open surgery, but three cases involved combination with transthoracic surgery. In qualitative analysis, 108 items under three main themes were detected: explosion, dissection, and reconstruction. Revised instruction was subsequently designed according to the change in surgical technique and the cognitive process behind it. Three patients had anastomotic leaks postoperatively, with one classified as Clavien-Dindo IIIa. The surgical technique of laparoscopic TH-LMLND is stable and feasible; further IDEAL 2b research is warranted.
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