What do systematic reviews say?

Surgery vs no surgery

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  5 studies · 478 participants
  Moderate

Surgery vs preoperative pharmacological therapy and surgery

The review found no eligible studies for this question.

• Surgical and non‐surgical interventions for primary and salvage treatment of growth hormone‐secreting pituitary… 2024 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Surgery vs Pharmacological therapy

The review found no eligible studies for this question.

• Surgical and non‐surgical interventions for primary and salvage treatment of growth hormone‐secreting pituitary… 2024 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Laparoscopic gastric bypass vs laparoscopic adjustable gastric banding

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 301 participants
  Moderate

Laparoscopic gastric bypass vs laparoscopic sleeve gastrectomy

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  6 studies · 600 participants
  Moderate

Gastric bypass vs biliopancreatic diversion with duodenal switch (laparoscopic or open)

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 107 participants
  Moderate

Laparoscopic gastric bypass vs laparoscopic duodenojejunal bypass with sleeve gastrectomy

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 57 participants
  Very low

Laparoscopic adjustable gastric banding vs laparoscopic sleeve gastrectomy

The review found no eligible studies for this question.

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Laparaoscopic gastric imbrication vs laparoscopic sleeve gastrectomy

• Surgery for weight loss in adults 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 30 participants
  Very low

Intervention not reported

The review found no eligible studies for this question.

• Surgery for the treatment of obesity in children and adolescents 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Total thyroidectomy vs subtotal thyroidectomy

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 300 participants
  GRADE not reported
• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 350 participants
  GRADE not reported

Bilateral subtotal thyroidectomy vs the Dunhill procedure

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 642 participants
  GRADE not reported

Intraoperative neuromonitoring vs visual nerve identification only during thyroidectomy

• Intraoperative neuromonitoring versus visual nerve identification for prevention of recurrent laryngeal nerve injury… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 1438 participants
  Moderate

Intervention not reported

The intervention showed no clear difference in all‐cause mortality (death from any cause) (high certainty).

• Perioperative glycaemic control for people with diabetes undergoing surgery 2023 · Cochrane Headline outcomes only
  RR 1.08 [0.88, 1.33]
  18 studies · 2551 participants
  High