Presentation
# 9
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6th Internet World Congress for Biomedical Sciences |
Jesús García Domínguez(1), Teresa Cueto Guerreiro(2)
(1)Hospital Materno Infantil "10 de Octubre" - Ciudad de La Habana.. Cuba
(2)Facultad de Ciencias Mèdicas - Ciudad De La Habana . Cuba
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From the 52,825 investiged children , we found hearing loss in 30 (18 newborns and 12 infants). So 52,795 (999.43 per 1000 live born) were normal. (Chart # 1).
Hipoacusia’s incidence seems to be was 0,57 per 1000 live born (l.b.) with 0,34 x 1000 l.b. as the neonatal componente and 0,23 x 1000 l.b. as the post neonatal one. (Chart # 2).
This low incidence semms to be the result of the massively applied preconceptional, prenatal and early neonatal preventive programs in Cuba together outh the use of highly advanced medical technologies and qualified personnel formation(1-6).
Among non-comparable populations H.s at birth has been estimated around 1 x 1000 l.b. Considering less severe hearing losses the incidence approaches 1x 10. If risk factor chlidren are also taken into consideration then indexes arise considerabley, realsing ciphers of 2,5-5 % acording to the Joint Committe on Infant Hearing and of 10 % as other authors have reported(11,17-22).
Nine hundred and fifty neonates with high hearing loss risk were studied from the total of live born during that period. Sensorineural H. was found in 16 cases (1,68 %) and mixed en 2 cases (0,21 %). (Chart # 3). These are relative frequencies much lower than those found by by Lauffer-H and cols. (14) and similar to those reported by Kuan-Mi and Sekula-J (11,12).
From the thirty hipoacusic chlidren, 60 % had bilateral SN hippoacusia and 26,6 % unilateral. Sexty % belonged to the neonatal screening program. During the neonatal period 55,5 % and 33,3 % were bilateral and unilateral SN H. respectively. On the other han 66 % was bilateral during the post neonatal period.
The thoughtful use of a neonatal high auditive risk register allows us to diagnose the three fifths parts of H. population (18 of 30) and this is accomplished by studies only 1,8 % (950 children in our case) from the newborns universe.
This time and cost-saving strategy which renders possible the early phono-audiologic intervention on the majority of chlildren with special hearing needs and during the critical language ages. Kuan-Mi, of Taiwan (11) and other authors have reached to a similar conclusion (22-27).
There was in general 20% of moderate hearing loss (41-60 dbs); 23,3% of severe (61-80 dbs) and of deep hearing loss (80 and more db). Among newborn there was 33,3% moderate; 22,2% severe and 44,4% deep H. Finally, 75% of patients from from the post-neonatal group had severe H. and 44,4% had deep H. (Chart # 5). Tucker-Sm and Cabbage (10) on his hearing loss and Eisglas-Kuperus-N and al. (20) on their posneonatal study reported lower ciphers of severe and deep H.
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