Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

500 questions · 503 findings · 94 reviews · Gut

No studies found 109 · 21.7%GRADE not reported 30 · 6%Very low 157 · 31.2%Low 134 · 26.6%Moderate 62 · 12.3%High 11 · 2.2%

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

Adverse events · adults undergoing open pancreaticoduodenectomy

The review found no eligible studies for this question.

1 finding from 1 review

Electromagnetic‐guided vs endoscopic‐guided postpyloric placement of nasoenteral feeding tubes

Adverse events

Electromagnetic‐guided showed no clear difference in adverse events compared with endoscopic‐guided postpyloric placement of nasoenteral feeding tubes (moderate certainty).

1 finding from 1 review

Biological therapy vs placebo, best supportive care (BSC) or no treatment

Any adverse events · advanced gastric and oesophago‐gastric junction adenocarcinoma

Biological therapy showed no clear difference in any adverse events compared with placebo, best supportive care (BSC) or no treatment (high certainty).

1 finding from 1 review

Chemmotherapy combined with biological therapy vs chemotherapy alone

Any adverse events · advanced gastric and oesophago‐gastric junction adenocarcinoma

Chemmotherapy combined with biological therapy showed no clear difference in any adverse events compared with chemotherapy (moderate certainty).

1 finding from 1 review