Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

99 questions · 101 findings · 5 reviews

No studies found 37 · 36.6%GRADE not reported 6 · 5.9%Very low 16 · 15.8%Low 18 · 17.8%Moderate 24 · 23.8%High 0 · 0%

Foam sclerotherapy vs foam sclerotherapy

Cosmetic appearance · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes cosmetic appearance (self‐described cosmetic improvement) compared with foam sclerotherapy (very low certainty).

1 finding from 1 review

Foam sclerotherapy vs foam sclerotherapy

Number of thromboembolic complications · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes complications ‐ thromboembolic compared with foam sclerotherapy (very low certainty).

1 finding from 1 review

Sclerotherapy vs placebo

Adverse events ‐ hyperpigmentation ( · people with telangiectasias and reticular veins

Sclerotherapy probably leads to higher adverse events ‐ hyperpigmentation ( compared with placebo (moderate certainty).

1 finding from 1 review

Sclerotherapy vs placebo

Adverse events ‐ matting ( · people with telangiectasias and reticular veins

Sclerotherapy probably leads to higher adverse events ‐ matting ( compared with placebo (moderate certainty).

1 finding from 1 review