Comment on 'comparison of overall survival and perioperative outcomes of laparoscopic pancreaticoduodenectomy and open pancreaticoduodenectomy for pancreatic ductal adenocarcinoma: a systematic review and meta-analysis'.

Background: To discuss some inaccurate parts of a published systematic review and meta-analysis which was about comparison of laparoscopic pancreaticoduodenectomy and open pancreaticoduodenectomy for pancreatic ductal adenocarcinoma in overall survival and perioperative outcomes.

Methods: Not applicable.

Results: The study enrolled overlapping patient cohorts and patients with a variety of disease histologies, not specific for pancreatic ductal adenocarcinoma. They also reported different conclusion for R0 resection of 2 approaches in result and discussion part. Some data should be revised through statistical method, which could be polled to analysis.

Conclusion: The conclusion of this published systematic review and meta-analysis was not objective; therefor, the study may mislead readers, especially for those who just read the abstract of this study or not analysis this article in detail.