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L. Facteurs-de-risque-Étudiés, âge de l'enfant, la durée de fonctionnement de l'ATT, l'audition pré-opératoire et post-opératoire, la réalisation d'une adénoïdectomie, les antécédents d'allergie, de reflux gastro-oesophagien (RGO), de prématurité et la présence de tabagisme passif. Le critère de jugement principal était la récidive d'OSM constatée après expulsion des premiers ATT et nécessitant une seconde pose

. Au-total, Vingt-six enfants avaient des antécédents d'allergie, 12 de RGO, 25 de prématurité, et 31 de tabagisme passif. Deux cent dix-neuf enfants ont bénéficié d'une adénoïdectomie. Quatre-vingt-cinq enfants (37%) ont eu une récidive d'OSM avec seconde pose d'ATT. Les enfants présentant une surdité pré-opératoire importante avaient plus de risques de récidiver (OR 1,17 ; p=0,03), p.2

. Mots-clés, Otite séromuqueuse ; aérateur trans-tympanique ; récidive ; enfant Objective