Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

42 questions · 42 findings · 12 reviews · Heart

No studies found 17 · 40.5%GRADE not reported 0 · 0%Very low 11 · 26.2%Low 7 · 16.7%Moderate 6 · 14.3%High 1 · 2.4%

Summary of findings table ‐ Low‐carbohydrate weight‐reducing diets vs balanced‐carbohydrate weight‐reducing diets

Cardiovascular mortality ‐ not measured · overweight and obese participants without T2DM (weight‐reducing phase followed by weight maintenance phase)

The review found no eligible studies for this question.

1 finding from 1 review

Summary of findings table ‐ Low‐carbohydrate weight‐reducing diets vs balanced‐carbohydrate weight‐reducing diets

Cardiovascular mortality ‐ not measured · overweight and obese participants with T2DM (weight‐reducing phase followed by weight‐maintenance phase)

The review found no eligible studies for this question.

1 finding from 1 review

Summary of findings table ‐ Low‐carbohydrate weight‐reducing diets vs balanced‐carbohydrate weight‐reducing diets

Cardiovascular mortality ‐ not measured · overweight and obese participants with T2DM (weight‐reducing phase only)

The review found no eligible studies for this question.

1 finding from 1 review

Summary of findings table ‐ Low‐carbohydrate weight‐reducing diets vs balanced‐carbohydrate weight‐reducing diets

Cardiovascular mortality ‐ not measured · overweight and obese participants without T2DM (weight‐reducing phase only)

The review found no eligible studies for this question.

1 finding from 1 review

Transcatheter aortic valve implantation vs surgical aortic valve replacement

All‐cause mortality · adults with severe aortic stenosis who are at a low surgical risk.

Transcatheter aortic valve implantation showed no clear difference in all‐cause mortality compared with surgical aortic valve replacement (moderate certainty).

1 finding from 1 review

Levosimendan vs placebo

All‐cause long‐term mortality: range 4 to 6 months · adults with cardiogenic shock or low cardiac output syndrome

It is very uncertain whether levosimendan changes all‐cause long‐term mortality: range 4 to 6 months compared with placebo (very low certainty).

1 finding from 1 review

Levosimendan vs dobutamine

All‐cause short‐term mortality: range 15 to 31 days · people with cardiogenic shock or low cardiac output syndrome

Levosimendan showed no clear difference in all‐cause short‐term mortality: range 15 to 31 days compared with dobutamine (low certainty).

1 finding from 1 review