What do systematic reviews say?

Roux‐en‐Y vs Billroth‐I after distal gastrectomy

• Roux‐en‐Y versus Billroth‐I reconstruction after distal gastrectomy for gastric cancer 2021 · Cochrane Headline outcomes only
  no estimate extracted
  6 studies · 695 participants
  Low

Probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

The review found no eligible studies for this question.

• Probiotics for maintenance of remission in ulcerative colitis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention diet vs control diet

The review found no eligible studies for this question.

• Dietary interventions for induction and maintenance of remission in inflammatory bowel disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention diet vs control diet

The review found no eligible studies for this question.

• Dietary interventions for induction and maintenance of remission in inflammatory bowel disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Duodenal stenting vs surgical palliation

The review found no eligible studies for this question.

• Stent placement versus surgical palliation for adults with malignant gastric outlet obstruction 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Pharmacological interventions for acute pancreatitis 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Probiotics vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

• Probiotics for maintenance of remission in ulcerative colitis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 222 participants
  Low

Probiotics vs placebo

• Probiotics for maintenance of remission in ulcerative colitis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 25 participants
  Low

Enhanced recovery protocol vs usual care

• Enhanced recovery protocols for major upper gastrointestinal, liver and pancreatic surgery 2016 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 373 participants
  Very low

Pregabalin vs placebo

• Pregabalin for decreasing pancreatic pain in chronic pancreatitis 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 64 participants
  Moderate

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

• Non‐surgical versus surgical treatment for oesophageal cancer 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 165 participants
  Very low

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

• Non‐surgical versus surgical treatment for oesophageal cancer 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 62 participants
  Very low

Intervention diet vs control diet

• Dietary interventions for induction and maintenance of remission in inflammatory bowel disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 14 participants
  Very low

Intervention diet vs control diet

• Dietary interventions for induction and maintenance of remission in inflammatory bowel disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 51 participants
  Low