What do systematic reviews say?

Surgical thrombectomy vs mechanical thrombectomy

It is very uncertain whether surgical thrombectomy changes patency at 30 days compared with mechanical thrombectomy (very low certainty).

• Interventions for thrombosed haemodialysis arteriovenous fistulas and grafts 2024 · Cochrane Headline outcomes only
  RR 1.34 [1.07, 1.67]
  3 studies · 404 participants
  Very low

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

The review found no eligible studies for this question.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  Minimum 3 months (planned)
  no estimate extracted
  0 studies
  No studies found

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

The review found no eligible studies for this question.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  Minimum 3 months (planned)
  no estimate extracted
  0 studies
  No studies found

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

The review found no eligible studies for this question.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  Minimum 3 months (planned)
  no estimate extracted
  0 studies
  No studies found

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

Occlusal adjustment as an adjunct to surgical periodontal therapy led to higher clinical attachment level change (mean gain, mm) compared with surgical periodontal therapy alone (no occlusal adjustment); GRADE not reported.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  2 years
  MD 0.40 [0.05, 0.75]
  1 study · 50 participants
  GRADE not reported

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

Occlusal adjustment as an adjunct to surgical periodontal therapy showed no clear difference in probing (pocket) depth change (difference in mean reduction, mm) compared with surgical periodontal therapy alone (no occlusal adjustment); GRADE not reported.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  2 years
  MD 0.01 [-0.20, 0.22]
  1 study · 50 participants
  GRADE not reported

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

Occlusal adjustment as an adjunct to non-surgical periodontal therapy showed no clear difference in probing (pocket) depth change (difference in mean reduction, mm) compared with non-surgical periodontal therapy alone (no occlusal adjustment); GRADE not reported.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  2 years
  MD 0.04 [-0.19, 0.27]
  1 study · 50 participants
  GRADE not reported

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

The review found no eligible studies for this question.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  Minimum 3 months (planned)
  no estimate extracted
  0 studies
  No studies found

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

The review found no eligible studies for this question.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  Minimum 3 months (planned)
  no estimate extracted
  0 studies
  No studies found

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

The review found no eligible studies for this question.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  Minimum 3 months (planned)
  no estimate extracted
  0 studies
  No studies found

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

Occlusal adjustment as an adjunct to non-surgical periodontal therapy led to higher clinical attachment level change (mean gain, mm) compared with non-surgical periodontal therapy alone (no occlusal adjustment); GRADE not reported.

• Occlusal interventions for periodontitis in adults 2008 · Cochrane All outcomes

  2 years
  MD 0.38 [0.04, 0.72]
  1 study · 50 participants
  GRADE not reported

Medical/surgical masks vs no masks

Medical/surgical masks showed no clear difference in viral respiratory illness ‐ influenza/COVID‐like illness compared with no masks (moderate certainty).

• Physical interventions to interrupt or reduce the spread of respiratory viruses 2023 · Cochrane Headline outcomes only
  RR 0.95 [0.84, 1.09]
  9 studies · 276917 participants
  Moderate

Medical/surgical masks vs no masks

Medical/surgical masks showed no clear difference in viral respiratory illness ‐ laboratory‐confirmed influenza/SARS‐CoV‐2 compared with no masks (moderate certainty).

• Physical interventions to interrupt or reduce the spread of respiratory viruses 2023 · Cochrane Headline outcomes only
  RR 1.01 [0.72, 1.42]
  6 studies · 13919 participants
  Moderate

Medical/surgical masks vs no masks

• Physical interventions to interrupt or reduce the spread of respiratory viruses 2023 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 3 participants
  Very low

Microsurgical clipping vs endovascular coiling

• Treatments for unruptured intracranial aneurysms 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 134 participants
  Very low

Microsurgical clipping vs endovascular coiling

• Treatments for unruptured intracranial aneurysms 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 106 participants
  Very low

Microsurgical clipping vs endovascular coiling

• Treatments for unruptured intracranial aneurysms 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 104 participants
  Very low

Microsurgical clipping vs endovascular coiling

The review found no eligible studies for this question.

• Treatments for unruptured intracranial aneurysms 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Microsurgical clipping vs endovascular coiling

The review found no eligible studies for this question.

• Treatments for unruptured intracranial aneurysms 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Microsurgical clipping vs endovascular coiling

The review found no eligible studies for this question.

• Treatments for unruptured intracranial aneurysms 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found