Minimally invasive surgery for stomach cancer

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Abstract

Laparoscopic surgery for gastric cancer has become extremely widespread in recent years especially in Asian countries due to its low invasiveness. As to evidence of indication for laparoscopic surgery for gastric cancer, laparoscopic surgery for gastric cancer often appears to be indicated for early gastric cancer at many institutions, while evidence was considered to be insufficient to recommend laparoscopic surgery for gastric cancer at Stage II and above. There are also problems with indications for cases other than tumour factors. No meta-analyses and prospective studies have been reported, but outcomes of laparoscopic surgery for gastric cancer in gastric cancer patients with co-morbid and/or existing diseases have been reported in retrospective studies. Indications in the elderly appear to be favourable in terms of post-operative ambulation considering factors such as the degree of dissection in accordance with the status of the patient. Meta-analyses, randomized controlled trials and several retrospective studies have compared the short-term usefulness of laparoscopic surgery for gastric cancer with that of conventional gastrectomy. The superiority of laparoscopic surgery for gastric cancer has been reported in terms of the reduced amount of bleeding, a reduction in the administration frequency and period of analgesic doses, a reduction in the duration of fever, early recovery of intestinal movement and early return to oral intake. A small-scale randomized controlled trial and several retrospective studies have demonstrated no significant differences in survival rate, recurrence rate and type of recurrence between laparoscopic surgery for gastric cancer and conventional gastrectomy. The results of the aforementioned trials in early gastric cancer in Japan and Korea for which enrolment is complete remain to be published.

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