{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,28]],"date-time":"2025-09-28T11:10:54Z","timestamp":1759057854923},"reference-count":12,"publisher":"Cambridge University Press (CUP)","issue":"12","license":[{"start":{"date-parts":[[2020,12,4]],"date-time":"2020-12-04T00:00:00Z","timestamp":1607040000000},"content-version":"unspecified","delay-in-days":3,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Laryngol. Otol."],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0022215120002297_sec_a1\"><jats:title>Objective<\/jats:title><jats:p>To assess the effect on hearing of non-functioning ventilation tubes due to blockage during the first six months post-operatively, using UK national guidelines.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215120002297_sec_a2\" sec-type=\"methods\"><jats:title>Method<\/jats:title><jats:p>A prospective, observational study was conducted on 37 children who underwent bilateral ventilation tube insertion. Air and bone conduction thresholds were measured before and following surgery, and at one, three and six months post-operatively. Tube non-function was assessed by tympanometry supported by otoscopy.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215120002297_sec_a3\" sec-type=\"results\"><jats:title>Results<\/jats:title><jats:p>Post-operatively, an average of 21 per cent of ventilation tubes were non-functioning. Ears with non-functioning tubes had significantly (<jats:italic>p<\/jats:italic> = 0.0001) poorer mean air conduction thresholds than functioning tubes, with a magnitude of 6 dB HL. Ears with otorrhoea were most affected (15 per cent). At any one visit, the air\u2013bone gap was closed to 10 dB or less in 76 per cent of ears. Non-functioning tubes reduced this to 56 per cent. Compared with tympanometry, otoscopy underdiagnosed tube non-function due to blockage by 22 per cent.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215120002297_sec_a4\" sec-type=\"conclusions\"><jats:title>Conclusion<\/jats:title><jats:p>Non-functioning of ventilation tubes occurs frequently and can be missed on otoscopy. Although it is associated with poorer air conduction thresholds, the magnitude of this difference is unlikely to warrant further intervention unless there is otorrhoea or recurrence of bilateral hearing impairment.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0022215120002297","type":"journal-article","created":{"date-parts":[[2020,12,4]],"date-time":"2020-12-04T06:40:34Z","timestamp":1607064034000},"page":"1052-1059","source":"Crossref","is-referenced-by-count":2,"title":["Ventilation tube non-function due to blockage in children: the frequency, course and effect on hearing. A prospective cohort study"],"prefix":"10.1017","volume":"134","author":[{"given":"M","family":"Merven","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J W","family":"Loock","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G G","family":"Browning","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2020,12,4]]},"reference":[{"key":"S0022215120002297_ref6","doi-asserted-by":"crossref","first-page":"383","DOI":"10.1177\/0194599811409862","article-title":"Ventilation tube treatment: a systematic review of the literature","volume":"145","author":"Hellstr\u00f6m","year":"2011","journal-title":"Otolaryngol Head Neck Surg"},{"key":"S0022215120002297_ref1","first-page":"CD00180","article-title":"Grommets (ventilation tubes) for hearing loss associated with otitis media with effusion in children","volume":"10","author":"Browning","year":"2010","journal-title":"Cochrane Database Syst Rev"},{"key":"S0022215120002297_ref9","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1111\/j.1749-4486.2012.02469.x","article-title":"Adjuvant adenoidectomy in persistent bilateral otitis media with effusion: hearing and revision surgery outcomes through 2 years in the TARGET randomized trial","volume":"37","year":"2012","journal-title":"Clin Otolaryngol"},{"key":"S0022215120002297_ref4","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1111\/j.1365-2273.1990.tb00787.x","article-title":"The prevalence of otitis media with effusion: a critical review of the literature","volume":"15","author":"Zielhuis","year":"1990","journal-title":"Clin Otolaryngol Allied Sci"},{"key":"S0022215120002297_ref2","doi-asserted-by":"crossref","first-page":"374","DOI":"10.1067\/mhn.2001.113941","article-title":"Meta-analysis of tympanostomy tube sequelae","volume":"124","author":"Kay","year":"2001","journal-title":"Otolaryngol Head Neck Surg"},{"key":"S0022215120002297_ref7","first-page":"CD008512","article-title":"Interventions for the prevention of postoperative ear discharge after insertion of ventilation tubes (grommets) in children","volume":"4","author":"Syed MI","year":"2013","journal-title":"Cochrane Database Syst Rev"},{"key":"S0022215120002297_ref11","doi-asserted-by":"crossref","first-page":"328","DOI":"10.1542\/peds.109.2.328","article-title":"Follow-up management of children with tympanostomy tubes","volume":"109","year":"2002","journal-title":"Paediatrics"},{"key":"S0022215120002297_ref5","doi-asserted-by":"crossref","first-page":"894","DOI":"10.1097\/AUD.0b013e3181824d15","article-title":"An extension of the Jerger classification of tympanograms for ventilation tube patency \u2013 specification and evaluation of equivalent ear-canal volume criteria","volume":"29","year":"2008","journal-title":"Ear Hear"},{"key":"S0022215120002297_ref10","doi-asserted-by":"crossref","first-page":"S1","DOI":"10.1177\/0194599813487302","article-title":"Clinical practice guideline: tympanostomy tubes in children","volume":"149","author":"Rosenfeld","year":"2013","journal-title":"Otolaryngol Head Neck Surg"},{"key":"S0022215120002297_ref3","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1046\/j.1365-2273.2003.00680.x","article-title":"The role of ventilation tube status in the hearing levels in children managed for bilateral persistent otitis media with effusion","volume":"28","year":"2003","journal-title":"Clin Otolaryngol Allied Sci"},{"key":"S0022215120002297_ref8","doi-asserted-by":"crossref","first-page":"480","DOI":"10.1136\/adc.2004.059444","article-title":"Grommets in otitis media with effusion: an individual patient data meta-analysis","volume":"90","author":"Rovers","year":"2005","journal-title":"Arch Dis Child"},{"key":"S0022215120002297_ref12","first-page":"CD011685","article-title":"Interventions for the prevention of postoperative grommet (ventilation tube) obstruction","volume":"5","author":"Verkerk","year":"2015","journal-title":"Cochrane Database Syst Rev"}],"container-title":["The Journal of Laryngology &amp; Otology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0022215120002297","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,26]],"date-time":"2022-05-26T10:39:46Z","timestamp":1653561586000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0022215120002297\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,12]]},"references-count":12,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2020,12]]}},"alternative-id":["S0022215120002297"],"URL":"https:\/\/doi.org\/10.1017\/s0022215120002297","relation":{},"ISSN":["0022-2151","1748-5460"],"issn-type":[{"value":"0022-2151","type":"print"},{"value":"1748-5460","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,12]]}}}