Findings

What do systematic reviews say?

660 questions · 679 findings · 99 reviews · Headline outcomes only

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No studies found 160 · 23.6%GRADE not reported 17 · 2.5%Very low 199 · 29.3%Low 189 · 27.8%Moderate 97 · 14.3%High 17 · 2.5%

Foam sclerotherapy vs foam sclerotherapy

Persistence of symptoms · participants with varicose veinsa

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Foam sclerotherapy vs foam sclerotherapy

Recurrent varicose veins · participants with varicose veinsa

Foam sclerotherapy showed no clear difference in recurrent varicose veins compared with foam sclerotherapy (low certainty).

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
RR 0.91 [0.62, 1.32]
1 study · 148 participants
Low

Foam sclerotherapy vs liquid sclerotherapy

Cosmetic appearance · participants with varicose veinsa

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
1 study · 126 participants
Very low

Foam sclerotherapy vs liquid sclerotherapy

Complications ‐ DVT · participants with varicose veinsa

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Foam sclerotherapy vs liquid sclerotherapy

Residual varicose veins · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes residual varicose veins compared with liquid sclerotherapy (very low certainty).

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
RR 0.51 [0.41, 0.65]
2 studies · 203 participants
Very low

Foam sclerotherapy vs liquid sclerotherapy

QoL · participants with varicose veinsa

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Foam sclerotherapy vs liquid sclerotherapy

Persistence of symptoms · participants with varicose veinsa

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Foam sclerotherapy vs liquid sclerotherapy

Recurrent varicose veins · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes recurrent varicose veins compared with liquid sclerotherapy (very low certainty).

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
RR 1.1 [0.86, 1.42]
1 study · 286 participants
Very low

Sclerotherapy vs sclerotherapy with different substances

Cosmetic appearance · participants with varicose veinsb

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Foam sclerotherapy vs placebo

Complications ‐ DVT · participants with varicose veinsa

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

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
RR 5.1 [1.3, 20.01]
3 studies · 302 participants
Very low

Sclerotherapy vs sclerotherapy with different substances

Complications ‐ DVT · participants with varicose veinsb

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Sclerotherapy vs sclerotherapy with different substances

Residual varicose veins · participants with varicose veinsb

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Sclerotherapy vs sclerotherapy with different substances

QoL · participants with varicose veinsb

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Sclerotherapy vs sclerotherapy with different substances

Persistence of symptoms · participants with varicose veinsb

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Sclerotherapy vs sclerotherapy with different substances

Recurrent varicose veins · participants with varicose veinsb

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Foam sclerotherapy vs placebo

Residual varicose veins · participants with varicose veinsa

It is very uncertain whether foam sclerotherapy changes residual varicose veins compared with placebo (very low certainty).

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
RR 0.19 [0.13, 0.29]
2 studies · 225 participants
Very low

Foam sclerotherapy vs placebo

QoL · participants with varicose veinsa

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 299 participants
Very low

Foam sclerotherapy vs placebo

Persistence of symptoms · participants with varicose veinsa

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 223 participants
Low

Foam sclerotherapy vs placebo

Recurrent varicose veins · participants with varicose veinsa

The review found no eligible studies for this question.

1 finding from 1 review

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

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

Injection sclerotherapy for varicose veins 2021 · Cochrane Headline outcomes only
RR 1.11 [0.84, 1.47]
1 study · 80 participants
Very low