Tobacco Smoke Exposure during Childhood: Effect on Cochlear Physiology

Alessandra S. Durante, Beatriz Pucci, Nicolly Gudayol, Beatriz Massa, Marcella Gameiro and Cristiane Lopes
Additional contact information
Alessandra S. Durante: Faculdade de Ciências Médicas da Santa Casa de São Paulo (FCMSCSP, School of Medical Sciences of Santa Casa of São Paulo), Arnaldo Vieira de Carvalho Foundation, Street Dr. Cesário Mota Júnior, 61 São Paulo 01221-020, Brazil
Beatriz Pucci: Irmandade da Santa Casa de Misericórdia de São Paulo (ISCMSP, Santa Casa Sisters of Mercy Hospital of São Paulo), Street Dr. Cesário Mota Júnior, 112, São Paulo 01221-020, Brazil
Nicolly Gudayol: Irmandade da Santa Casa de Misericórdia de São Paulo (ISCMSP, Santa Casa Sisters of Mercy Hospital of São Paulo), Street Dr. Cesário Mota Júnior, 112, São Paulo 01221-020, Brazil
Beatriz Massa: Faculdade de Ciências Médicas da Santa Casa de São Paulo (FCMSCSP, School of Medical Sciences of Santa Casa of São Paulo), Arnaldo Vieira de Carvalho Foundation, Street Dr. Cesário Mota Júnior, 61 São Paulo 01221-020, Brazil
Marcella Gameiro: Faculdade de Ciências Médicas da Santa Casa de São Paulo (FCMSCSP, School of Medical Sciences of Santa Casa of São Paulo), Arnaldo Vieira de Carvalho Foundation, Street Dr. Cesário Mota Júnior, 61 São Paulo 01221-020, Brazil
Cristiane Lopes: Faculdade de Ciências Médicas da Santa Casa de São Paulo (FCMSCSP, School of Medical Sciences of Santa Casa of São Paulo), Arnaldo Vieira de Carvalho Foundation, Street Dr. Cesário Mota Júnior, 61 São Paulo 01221-020, Brazil

IJERPH, 2013, vol. 10, issue 11, 1-9

Abstract: The rate of smoking in Brazil is about 18.8%. Exposure to environmental tobacco smoke is one of the major factors predisposing children to several hazardous health problems. The objective of the present research was to analyze the effect of tobacco smoke exposure during childhood on cochlear physiology by measuring the transient evoked otoacoustic emissions (TEOAE) response levels. Cotinine, the main metabolite of nicotine, was measured in 145 students’ (8–10 years old) urine. Sixty students indicated tobacco smoke exposure (TSE) (cotinine urine levels ? 5.0 ng/mL) and 85 did not. The evaluation of TEOAE of TSE students showed lower response levels, mainly on frequencies of 2.8 kHz on the right and left ears and 2.0 kHz on left ear and lower signal noise response levels, mainly on the 1.0 kHz and 1.4 kHz frequencies, when compared to controls that were not exposed to tobacco. The mean reduction observed in TEOAE of tobacco smoke exposure children was 2.1 dB SPL. These results have important implications on the damage to the cochlear structures and indicate a possible loss in hearing and hearing ability development.

Keywords: outer hair cells; spontaneous otoacoustic emissions; cochlea; growth and development; smoking; child; tobacco (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1660-4601/10/11/5257/pdf (application/pdf)
https://www.mdpi.com/1660-4601/10/11/5257/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:10:y:2013:i:11:p:5257-5265:d:29857

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().