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Microtia-atresia: aspectos clínicos, genéticos y genómicos

Overview of attention for article published in Boletín Médico del Hospital Infantil de México, May 2015
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Title
Microtia-atresia: aspectos clínicos, genéticos y genómicos
Published in
Boletín Médico del Hospital Infantil de México, May 2015
DOI 10.1016/j.bmhimx.2014.11.001
Pubmed ID
Authors

Mónica Aguinaga-Ríos, Sara Frías, Diego J. Arenas-Aranda, Verónica Fabiola Morán-Barroso

Abstract

Mexico has a prevalence of microtia of 7.37/10,000 (newborns), 3 times higher than the prevalence reported in other populations (USA 2-3/10,000). Microtia is defined as a congenital malformation of the external ear characterized by a small auricular lobe with an abnormal shape. It is more often unilateral and on the right side. Males are more frequently affected than females. It can occur as an isolated defect or can be associated with other abnormalities such as stenosis of the external auditory canal. In three of the main pediatric hospitals in Mexico, microtia is among the most important causes of attendance in the Genetics Department. Microtia-atresia must be considered as a major malformation with important repercussions in hearing function requiring multidisciplinary medical care in order to limit the disability associated and to provide genetic counseling. Its etiology is complex. Only in a minor number of cases it has been possible to identify a main genetic component (as in monogenic presentations) or a main environmental cause (as in fetal alcohol syndrome or pregestational diabetes). In most cases this malformation is multifactorial. Due to the relevance that the frequency of microtia atresia has in different health services in Mexico, it is important that all medical professionals are aware of its clinical, molecular and inherited characteristics.

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Geographical breakdown

Country Count As %
Unknown 22 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 3 14%
Student > Doctoral Student 3 14%
Student > Master 2 9%
Lecturer > Senior Lecturer 1 5%
Student > Postgraduate 1 5%
Other 3 14%
Unknown 9 41%
Readers by discipline Count As %
Medicine and Dentistry 7 32%
Nursing and Health Professions 2 9%
Pharmacology, Toxicology and Pharmaceutical Science 1 5%
Biochemistry, Genetics and Molecular Biology 1 5%
Energy 1 5%
Other 1 5%
Unknown 9 41%