What do systematic reviews say?

Perioperative chemotherapy vs primary surgery

• Perioperative chemo(radio)therapy versus primary surgery for resectable adenocarcinoma of the stomach,… 2013 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 1606 participants
  Moderate

Duct‐to‐mucosa pancreaticojejunostomy using the modified Blumgart technique vs duct‐to‐mucosa pancreaticojejunostomy using the traditional interrupted technique

• Duct‐to‐mucosa versus other types of pancreaticojejunostomy for the prevention of postoperative pancreatic fistula… 2022 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 210 participants
  Very low

Duct‐to‐mucosa vs invagination pancreaticojejunostomy

It is very uncertain whether duct‐to‐mucosa changes postoperative mortality compared with invagination pancreaticojejunostomy (very low certainty).

• Duct‐to‐mucosa versus other types of pancreaticojejunostomy for the prevention of postoperative pancreatic fistula… 2022 · Cochrane Headline outcomes only
  RR 0.77 [0.39, 1.49]
  10 studies · 1472 participants
  Very low

Pancreaticojejunostomy vs pancreatogastrostomy after pancreatoduodectomy

Pancreaticojejunostomy showed no clear difference in postoperative mortality compared with pancreatogastrostomy after pancreatoduodectomy (moderate certainty).

• Pancreaticojejunostomy versus pancreaticogastrostomy reconstruction for the prevention of postoperative pancreatic… 2017 · Cochrane Headline outcomes only
  RR 0.84 [0.53, 1.34]
  10 studies · 1629 participants
  Moderate