| Causes of permanent childhood hearing impairment. | |
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MedLine Citation:
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PMID: 21271598 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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INTRODUCTION: The causes of Permanent Childhood Hearing Impairment (PCHI) are often quoted as being hereditary in 50%, acquired in 25%, and unknown in 25% of cases. Interest in the causes of PCHI has grown recently due to increasing diagnostic possibilities. We investigated the evidence for the reported distribution of these causes. METHODS: Population-based study and a systematic review. Inclusion criteria for population-based study: children born between 2003 and 2005, resident in The Netherlands at birth, known at an Audiology Center with PCHI at the age of 3-5 years. The causes of PCHI were determined prospectively by detection of congenital cytomegalovirus on dried blood spots and/or genetic diagnostic investigations in addition to reviewing data from medical records. A systematic review was carried out using three terms (hearing loss, infant, and etiology) and limited to articles published between January 1997 and July 2009. Main outcome measures were: the (weighted) proportions of the various causes of PCHI following diagnostic investigations. RESULTS: In the study-population (n = 185) a hereditary cause was found in 38.9%, acquired cause in 29.7%, miscellaneous cause in 7.1%, and the cause remained unknown in 24.3%. The systematic review of the literature (n = 9 articles) resulted in a weighted mean of 30.4% hereditary, 19.2% acquired, and 48.3% unknown causes of PCHI. DISCUSSION: The systematic review and the results of the population-based study provided little support for the generally accepted distribution of causes of PCHI. Laryngoscope, 2011. |
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Authors:
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Anna M H Korver; Ronald J C Admiraal; Sarina G Kant; Friedo W Dekker; Capi C Wever; Henricus P M Kunst; Johan H M Frijns; Anne Marie Oudesluys-Murphy; |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: The Laryngoscope Volume: 121 ISSN: 1531-4995 ISO Abbreviation: - Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-1-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8607378 Medline TA: Laryngoscope Country: - |
Other Details:
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Languages: ENG Pagination: 409-416 Citation Subset: - |
Copyright Information:
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Copyright © 2010 The American Laryngological, Rhinological, and Otological Society, Inc. |
Affiliation:
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From the Willem-Alexander Children and Youth Center , Subdepartment of Social Pediatrics, Leiden University Medical Center, Leiden, The Netherlands. a.m.h.korver@lumc.nl. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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