Effects of Laparoscopic versus Open Surgery for Advanced Gastric Cancer after Neoadjuvant Chemotherapy: A Meta-Analysis.

This study has the following limitations: (1) among the included literature, 9 were retrospective studies and only 2 were randomized controlled studies, with publication bias; (2) preoperative neoadjuvant chemotherapy regiments are inconsistent in all studies, which may affect short-term prognosis and long-term survival of patients, and there may be significant heterogeneity among studies; (3) some included studies did not provide standard deviations, which were estimated approximately by the Hozo algorithm, and there may be outcome measurement bias; (4) the results of long-term prognosis of patients in the included studies are insufficient, and more reports of long-term follow-up results of studies are expected.

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