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Evidence found and GRADE certainty

4 questions · 4 findings · 1 reviews · ENT

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Adenoidectomy (with or without myringotomy) vs watchful waiting

Specific adverse events: haemorrhage · children aged 6 months to 12 years with otitis media with effusion (OME)

Adenoidectomy (with or without myringotomy) probably leads to higher adverse event: haemorrhage № of participants: 480(1 RCT) compared with no treatment/watchful waiting (moderate certainty).

1 finding from 1 review

Adenoidectomy (with or without myringotomy) vs watchful waiting

Hearing ‐ return to normal *Ventilation tubes versus laser myringotomy (6 to 12 months ‐ medium‐term) Adjusted for non‐independence of within‐individual measurements Assumed ICC of 0.5 № of participants: 132 (2 RCTs) · children aged 6 months to 12 years with otitis media with effusion (OME)

It is very uncertain whether adenoidectomy (with or without myringotomy) changes hearing: proportion with normal hearing ‐ up to 12 months № of… compared with no treatment/watchful waiting (very low certainty).

1 finding from 1 review

Adenoidectomy (with or without myringotomy) vs watchful waiting

Presence/persistence of OME · children aged 6 months to 12 years with otitis media with effusion (OME)

It is very uncertain whether adenoidectomy (with or without myringotomy) changes presence or persistence of OME ‐ over 12 months № of participants:… compared with no treatment/watchful waiting (very low certainty).

1 finding from 1 review