Risk factors for lateral pelvic lymph node metastasis in patients with lower rectal cancer: a systematic review and meta-analysis.

Background And Objective: Lateral pelvic lymph node (LPLN) metastasis is one of the prominent reasons for local recurrence (LR) in patients with rectal cancer (RC). The evaluation criteria of lateral lymph node dissection (LLND) for patients in eastern (mainly in Japan) and western countries have been controversial. The aim of this study was to analyse the risk factors for LPLN metastasis in order to guide surgical methods.

Comparison of the prognosis of four different surgical strategies for proximal gastric cancer: a network meta-analysis.

Background: There is controversy regarding the long-term prognosis and short-term postoperative complications of different surgical strategies for proximal gastric cancer (PGC).

Methods: We searched for articles published in Embase (Ovid), Medline (Ovid), PubMed, Cochrane Library, and Web of Science between January 1, 1990, and February 1, 2021. We screened out the literature comparing different surgical strategies.

Comparison of the prognosis of four different treatment strategies for acute left malignant colonic obstruction: a systematic review and network meta-analysis.

Background: There is controversy regarding the efficacy of different treatment strategies for acute left malignant colonic obstruction. This study investigated the 5-year overall survival (OS) and disease-free survival (DFS) of several treatment strategies for acute left malignant colonic obstruction.

Methods: We searched for articles published in PubMed, Embase (Ovid), MEDLINE (Ovid), Web of Science, and Cochrane Library between January 1, 2000, and July 1, 2020.