Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,268 questions · 1,343 findings · 197 reviews

No studies found 317 · 23.6%GRADE not reported 189 · 14.1%Very low 356 · 26.5%Low 271 · 20.2%Moderate 173 · 12.9%High 37 · 2.8%

Low tidal volume vs high tidal volume

Need for postoperative non‐invasive ventilatory support · adults (aged > 16 years) without acute lung injury needing mechanical positive pressure ventilation during their surgery and undergoing…

Low tidal volume probably leads to lower need for postoperative non‐invasive ventilatory support compared with high tidal volume (moderate certainty).

1 finding from 1 review

Low tidal volume vs high tidal volume

Need for postoperative invasive ventilatory support · adults (aged > 16 years) without acute lung injury needing mechanical positive pressure ventilation during their surgery and undergoing…

Low tidal volume probably leads to lower need for postoperative invasive ventilatory support compared with high tidal volume (moderate certainty).

1 finding from 1 review

Low tidal volume vs high tidal volume

Barotrauma (pneumothorax) · adults (aged > 16 years) without acute lung injury needing mechanical positive pressure ventilation during their surgery and undergoing…

It is very uncertain whether low tidal volume changes barotrauma: pneumothorax compared with high tidal volume (very low certainty).

1 finding from 1 review

Biofunctional Prosthetic System (BPS): closed-mouth two stage-two step final impression with addition silicone elastomer vs Conventional complete denture technique (CCD): open-mouth two stage-two step conventional technique using elastomer

Participant-reported quality of the denture (general satisfaction) · Completely edentulous people
1 finding from 1 review

Biofunctional Prosthetic System (BPS): closed-mouth two stage-two step final impression with addition silicone elastomer vs Conventional complete denture technique (CCD): open-mouth two stage-two step conventional technique using elastomer

Participant preference for dentures · Completely edentulous people
1 finding from 1 review

Emergency endovascular aneurysm repair vs conventional open repair

Short‐term mortality (30‐day or in‐hospital) · people diagnosed with RAAA

Emergency endovascular aneurysm repair showed no clear difference in short‐term mortality (30‐day or in‐hospital) compared with conventional open repair (moderate certainty).

1 finding from 1 review

Emergency endovascular aneurysm repair vs conventional open repair

Complication: renal complications (moderate or severe) (30‐day) · people diagnosed with RAAA

Emergency endovascular aneurysm repair showed no clear difference in complication: renal complications (moderate or severe) (30‐day) compared with conventional open repair (low certainty).

1 finding from 1 review

Neuroprotection vs control

Progression of visual field loss (worsening of one or more stages, accordingto the Glaucoma Staging System‐2) (at 12 months) · people with open‐angle glaucoma

It is very uncertain whether neuroprotection changes visual field: the proportion of participants with progression of… compared with control (very low certainty).

1 finding from 1 review

Neuroprotection vs control

Vertical cup‐disc ratio: the proportion of participants with asymmetrical vertical cup‐disc ratio greater than 0.3 at 4 years' · people with open‐angle glaucoma

The review found no eligible studies for this question.

1 finding from 1 review

Neuroprotection vs control

Adverse effects: ocular allergy to the study medication requiring discontinuation up to 4 years' · people with open‐angle glaucoma

It is very uncertain whether neuroprotection changes adverse effects: ocular allergy to the study medication requiring… compared with control (very low certainty).

1 finding from 1 review