Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

256 questions · 278 findings · 34 reviews · ENT

No studies found 86 · 30.9%GRADE not reported 1 · 0.4%Very low 88 · 31.7%Low 66 · 23.7%Moderate 35 · 12.6%High 2 · 0.7%

Intranasal corticosteroids vs placebo

Health outcomes Peak expiratory flow readings (higher readings indicate better peak flow) · adults and children > 12 with non‐allergic rhinitis

It is very uncertain whether intranasal corticosteroids changes objective measurement of airflow: peak flow rate (expiratory) compared with placebo (very low certainty).

1 finding from 1 review

Tranexamic acid vs placebo + standard care

Control of epistaxis: episodes of re‐bleeding over 10 days All treatments (topical and oral) · adults with nasal haemorrhage (epistaxis)

Tranexamic acid probably leads to lower control of epistaxis: episodes of re‐bleeding over 10 days All… compared with placebo plus usual care or usual care alone (moderate certainty).

1 finding from 1 review

Tranexamic acid vs placebo + standard care

Control of epistaxis: episodes of re‐bleeding over 10 days Oral treatment only · adults with nasal haemorrhage (epistaxis)

Tranexamic acid probably leads to lower control of epistaxis: episodes of re‐bleeding over 10 days Oral… compared with placebo plus usual care or usual care alone (moderate certainty).

1 finding from 1 review

Tranexamic acid vs placebo + standard care

Control of epistaxis: episodes of re‐bleeding over 10 days Topical application (10% gel) only · adults with nasal haemorrhage (epistaxis)

Tranexamic acid showed no clear difference in control of epistaxis: episodes of re‐bleeding over 10 days Topical… compared with placebo plus usual care or usual care alone (low certainty).

1 finding from 1 review

Tranexamic acid vs placebo + standard care

Control of epistaxis: time to stop initial bleeding (proportion of patients whose bleeding is controlled in ≤ 30 minutes) · adults with nasal haemorrhage (epistaxis)

Tranexamic acid showed no clear difference in control of epistaxis: time to stop initial bleeding (proportion of… compared with placebo plus usual care or usual care alone (low certainty).

1 finding from 1 review

Tranexamic acid vs placebo + standard care

Severity of re‐bleeding: proportion of patients requiring blood transfusion within 10 days · adults with nasal haemorrhage (epistaxis)

Tranexamic acid showed no clear difference in severity of re‐bleeding: proportion of patients requiring blood… compared with placebo plus usual care or usual care alone (low certainty).

1 finding from 1 review