Goetze, Thayse Bienert

Hermes, Giulie

Sleifer, Pricila

Zwetsch, Iuberi Carson

English

Lume 5.8

POSTER ABSTRACTS988KHz/40dB)	and	left	ear	(6KHz/40dB	and	8KHz/60dB).	Normal	Acoustic	immittance	measures;	normal	tympanometric	curves	(type	A)	with	ipsilateral	stapedial	reflexes	present	at	500,	1000,	2000,	and	4000HZ	frequencies	at	normal	levels.	The	research	about	potential	auditory	brainstein	presented	nerve	conduction	to	the	auditory	pathways	within	the	normal	range	(with	the	presence	of	the	waves	I,	III	and	V)	to	the	right	afference	and	abnormal	(presence	only	of	the	wave	I	and	absence	of	the	generate	sites	waves	III	and	V)	to	the	left	afference.	Magnetic	resonance	showed	a	large	lesion	on	cerebellopontine	angle	(2.0	x	2.0	cm),	well	delineated,	with	intermediated	signal	T1	weighted	MR	image,	high	signal	T2W	MR	image,	high	signal	T2W	MR	image	and	strong	enhance,	shaped	filling	defect	in	internal	auditory	canal	-	“ice	cream	in	cone	signal”.	Conclusion:	We	emphasize	that,	despite	the	slight	alterations,	with	a	minor	discrepancy	in	interaural	hearing	thresholds	and	the	absence	of	otological	symptoms,	it	is	important	to	perform	the	differential	diagnosis	of	the	acoustic	neuroma.	POSTER SESSION I - DATE: 29/3/2010 TIME: 8H00 - 18H00 - PANEL 130NEWBORN HEARING SCREENING PROGRAM IMPLATATION AT VIRVI RAMOS HOSPITALAuthorsDANIELA VERONESE BENTO2,	NATÁLIA	RAMOS2,	ALINE	AITA2,	LOUISE	DUTRA2Institution1.	,	Faculdade	Fátima2.	FF,	Faculdade	FátimaAbstract: Aim:	To	show	the	results	of	the	Newborn	Hearing	Screening	Program	implantation	at	Virvi	Ramos	Hospital	in	Caxias	do	Sul,	Rio	Grande	do	Sul.	Methods:	Interviews	with	parents,	analyses	of	the	medical	charts	of	the	pacients	and	research	of	the	transient	evoked	otoacustic	emissons	(TEOE)	in	order	to	verify	the	choclear	functioning	of	the	newborns.	Results:	During	the	first	five	months	of	this	Program,	252	(out	of	262)	neonates	born	alive	were	screened,	corresponding	to	96.1%.	Among	these,	180	(71.4%)	had	regular	TEOE	in	both	ears.	Among	the	72	(28.2%)	pacients	who	failed	in	at	least	one	ear,	66	(91.6%)	returned	to	be	screened	again	15	days	after	leaving	hospital,	and	among	this	last	group,	only	three	(4.5%)	neonates	failed	again	bilaterally.	The	most	prevalent	risk	factors	for	hearing	loss	were:	pregnancy	problems	(22,6%),	heredity	(9.9%),	stay	in	incubators	(9.1%)	and	stay	at	intensive	care	units	(7,1%).	The	newborns’	mothers	were	questioned	about	the	test	and	the	majority	(69.4%)	did	not	know	about	the	Newborn	Hearing	Screening	(NHS)	yet.	Conclusion:	The	results	obtained	in	the	first	months	of	the	implantation	of	the	Newborn	Hearing	Screening	Program	at	Virvi	Ramos	Hospital	can	be	considered	expressive,	specially	if	the	number	of	adherence	(91.6%)	is	considered	and	the	number	of	mothers	who	knew	about	the	neonatal	hearing	screening	(30.6%).	This	Program	is	a	pioneer	service	in	the	city	that	permits	an	early	detection	of	deafness	in	newborns	with	and	without	risk	factors.	POSTER SESSION I - DATE: 29/3/2010 TIME: 8H00 - 18H00 - PANEL 131AUDITORY MIDDLE LATENCY RESPONSE (AMLR) IN CHILDREN WITH LEARNING DISABILITIESAuthorsANA CLAUDIA FIGUEIREDO FRIZZO1,	CAROLINA	ARAUJO	RODRIGUES	FUNAYAMA1Institution1.	USP-SP,	São	Paulo	State	University2.	Uniube,	Universidade	de	UberabaAbstract: Authors	Ana	Claudia	Figueiredo	Frizzo1,	Carolina	Araujo	Rodrigues	Funayama	Auditory	Middle	Latency	Response	(AMLR)	 in	children	with	 learning	disabilities	Abstract:	Research	involving	auditory	middle	latency	response	(AMLR)	has	stood	out	as	a	tool	to	evaluate	the	integrity	of	the	central	hearing	system	and	seems	to	be	useful	in	clinical	practice.	The	aim	of	this	study	was	to	examine	the	components	of	the	AMLR	in	a	sample	of	children	with	disabilities	in	reading	and	writing,	according	to	their	IQ	levels.	This	contemporary	cross-sectional	study	included	25	children	with	learning	disorders,	from	8	to	14	years	of	age	(median,	10	years).	These	children	showed	no	organic	or	environmental	cause	for	their	disabilities	and	were	matched	by	age	and	gender	to	controls	with	good	academic	skills.	The	AMLR	of	the	study	group	with	total	IQ	(WISC-III)	below	80	(N=15)	was	compared	to	that	of	the	group	with	IQ	above	80	(N=10),	and	both	were	compared	to	the	control	group.	The	data	were	analyzed	by	comparing	confidence	intervals	for	the	latencies	of	Na,	Pa	and	Nb	waves	and	the	Na-Pa	amplitude	for	various	combinations	of	ears	and	brain	hemispheres.	The	findings	did	not	characterize	any	unique	marker	for	the	group	with	IQ	<	80.	The	latencies	of	Nb	and	Pa	(LatNb	and	LatPa)	were	slower	in	the	right	brain	hemisphere	of	the	group	with	IQ	>80	in	relation	to	the	right	(LatNb	and	LatPa)	and	left	(LatPa)	hemispheres	of	the	control	group.	These	findings	regarding	AMLR	measurement	may	represent	a	marker	for	dyslexic	children.POSTER SESSION I - DATE: 29/3/2010 TIME: 8H00 - 18H00 - PANEL 132226HZ AND 1000HZ TYMPANOMETRY IN INFANTS: SENSIBILITY AND SPECIFICITYAuthorsMICHELE	PICANçO	DO	CARMO,	DORIS	RUTHI	LEWISInstitution1.	PUC-SP,	Pontifícia	Universidade	Católica	de	São	PauloAbstract: Introduction:	Tympanometry	is	a	very	established	tool	in	the	audiological	evaluation	battery.	However	for	neonates	and	infants	there	are	controversies,	mainly	concerning	to	false-positives	and	false-negatives	outcomes.	The	literature	recommends	1000Hz	tympanometry	for	infants	under	six	months	of	age	because	it	shows	higher	sensitivity	and	accuracy	to	correctly	identify	middle	ear	diseases	in	this	population.	Goal:	To	describe	the	sensitivity	and	specificity	of	tympanometry	outcomes	with	226Hz	and	1000Hz	probe	tones	on	infants.	Method:	142	infants	took	part	in	the	study	(245	ears),	ages	between	12	and	180	days,	presenting	risk	indicators	for	hearing	loss.	They	were	evaluated	with	Transient	Otoacoustic	Emissions	(TOAE),	Automatic	Auditory	Brainstem	Response	(AABR)	in	35dBHL	and	Tympanometry	with	226Hz	and	1000Hz	probe	tones.	The	curves	were	classified	in	types	A,	Flat,	C,	Double	Peak	(DP),	Asymmetric	(ASS),	Inverted	(I),	and	also	as	normal	(type	A)	and	abnormal	(types	C,	Flat,	ASS	and	I).	The	statistical	measures	aimed	to	verify	which	probe	resulted	in	better	concordance	with	TOAE.	In	addition,	it	was	calculated	the	sensitivity	and	specificity	for	226Hz	and	1000Hz	probe	tones.	Results:	Otoacoustic	emissions	were	present	in	211	ears	(group	1)	and	absent	in	34	ears	(group	2).	Results	with	226Hz	probe	tone	revealed:	in	group	1,	90,28%	of	the	tympanometries	were	considered	as	normal,	and	9,72%	as	abnormal;	in	group	2,	76%	of	all	tympanometries	were	considered	normal,	and	only	24%	as	abnormal,	showing	low	sensitivity	for	this	probe	tone.	The	1000Hz	probe	tone	revealed:	in	group	1,	83,94%	tympanometries	normal	and	16,06%	abnormal.	In	group	2,	74,07%	showed	abnormal	tympanometries	and	25,93%	were	normal.	These	results	demonstrate	that	1000Hz	probe	is	more	efficient	for	infants.	The	226Hz	probe	showed	sensitivity	of	24%,	specificity	of	90,28%,	with	false-positive	results	of	70%	and	false-negative	results	of	12,75%.	The	1000Hz	probe	has	presented	sensitivity	of	74,07%,	specificity	of	83,94%,	false-positive	results	of	60,78%	and	false-negative	results	of	4,14%.	The	concordance	between	curve	classifications	as	normal	or	abnormal	and	TOAE	was	higher	for	1000Hz	probe	tone	than	for	226Hz	probe.	Conclusion:	The	results	of	tympanometry	using	1000Hz	were	more	concordant	with	TOAE	results.	It	is	possible	to	observe	that	the	sensitivity	is	greater	concerning	the	use	of	1000Hz	probe,	although	the	specificity	with	226Hz	is	slightly	higher.	Similarly,	the	false-positive	and	false-negative	results	were	less	frequent	by	using	the	1000Hz	tone	probe.	We	conclude	that	1000Hz	probe	tone	is	more	suitable	to	evaluate	infants	under	six	months	of	age.	POSTER SESSION I - DATE: 29/3/2010 TIME: 8H00 - 18H00 - PANEL 133AUDITORY FUNCTION IN AUDITORY DYSSYNCHRONY: LONGITUDINAL STUDYAuthorsNÁRIMA	MAKHOUL	GONçALVES1,	REGINA	CÉLIA	BORTOLETTO	AMANTINI1,	KÁTIA	DE	FREITAS	ALVARENGA2Institution1.	HRAC,	Hospital	de	Reabilitação	de	Anomalias	Craniofaciais2.	USP	-	Bauru,	Universidade	de	São	Paulo	campus	BauruAbstract: The	auditory	dyssynchrony	(AD)	is	an	neural	synchrony	disorder,	probably	related	to	myelinization	alterations	of	these	fibers,	to	the	inner	hair	cells,	synapses	between	the	cells	and	the	auditory	nerve,	in	the	nerve	itself,	or	still,	in	several	of	these	structures.	Objective:	To	verify	the	performance	of	the	auditory	abilities	and	language	of	individuals	diagnosised	as	auditory	dyssynchrony	with	hearing	aids	during	the	rehabilitation	process.	Methods:	This	study	presents	the	follow-up	results	of	audiological	hearing	aid	fitting,	speech	perception	and	language	evaluation	in	seven	male	patients	(age	range	3-8	years).	Results:	Bilateral	hearing	loss	of	moderate	degree	was	found	in	three	patient,	severe	in	three	and	profound	in	one,	5	showed	absence	of	Otoacoustic	emissions	and	all	absence	of	BERA	with	presence	of	bilateral	cochlear	microphonic.	Amongst	the	cases,	3	were	adapted	with	hearing	aids	of	digital	technology	type	A,	1	B	and	3	C	and	presented	functional	gain	of	in	average	30,	60	and	40dB	respectively.	All	patients	had	rehabilitation	sessions.	Conclusion:	it	was	evidenced	that	despite	the	diagnosis	being	auditory	dyssynchrony	and	literature	to	question	the	use	of	hearing	aids,	the	majority	of	the	cases	they	presented	development	of	language	beyond	the	waited	one	and	auditory	performance	next	to	normality.	POSTER SESSION I - A DATE: 29/3/2010 TIME: 8H00 - 18H00 - PANEL 133 AANALYZE STUDY OF THE EXAM P300 IN INDIVIDUALS WITH NORMAL HEARINGAuthorsPRICILA SLEIFER1,	GIULIE	HERMES2,	IUBERI	CARSON	ZWETSCH2,	THAYSE	BIENERT	GOETZE3Institution1.	UFRGS,	Universidade	Federal	do	Rio	Grande	do	Sul2.	IPA,	Centro	Universitário	Metodista	do	Sul3.	UFCSPA,	Universidade	Federal	de	Ciências	da	SaúdeAbstract: Objective:	This	research	had	 like	objective	carry	out	a	study	normative	of	 the	results	of	 the	exam	P300,	regarding	amplitude	and	 latency	of	 the	wave	presented,	 in	a	population/sample	of	persons	that	hear	normally,	of	age	between	17	and	50	years,	related	of	it	verify	itself	some	there	is	difference	statistically	significant	between	the	results	obtained.	As	well	as	for	comparison	of	news	and	future	studies	and	a	possible	standardization	of	these	results.	Methods:	They	were	selected	57	volunteers	without	alteration	in	the	hearing,	they	submitted	to	an	evaluation	by	the	medical	ear,	nose	and	throat	specialist,	it	was	carried	out	a	short	interview,	in	the	which,	each	individual	answered	some	questions	of	a	questionnaire,	being	evident	personal	facts	and	questions	related	to	the	criteria	of	enclosure	and	exclusion	of	the	research,	after	it	was	carried	out	an	evaluation	auditive	with	pure	tone	and	speech	audiometry,	immittance	measures	and	finally	the	exam	P300.	Results:	They	were	not	found	values	statistically	significant	regarding	latency	and	amplitude,	compared	with	age	and	left	and	right	ears.	However,	it	was	found	values	statistically	significant	for	values	of	latency	of	P300	and	N2	regarding	the	female	kinds,	with	smaller	latency	regarding	the	male	kind,	and	the	male	kind	with	bigger	amplitude	of	P300,	regarding	the	female	kind.	Conclusions:	Like	this,	it	is	possible	say	that	this	exam	electrophsiological	is	viable	and	its	results	matches	what	the	literature	shows.	However,	note	itself	a	significant	lack	and	interest	of	more	professional	for	better	knowledge	and	applicability	of	the	approach.	A	bigger	sample	would	be	of	big	value	for	a	possible	standardization.	KEYWORDS:	P300;	Cognition;	Long	latency	auditory	evoked	potential;	Audiology;	Cognition;	Hearing.	POSTER SESSION I - B DATE: 29/3/2010 TIME: 8H00 - 18H00 - PANEL 133 BAUDITORY STEADY STATE RESPONSE BY BONE CONDUCTION IN NORMAL ADULTSAuthorsTAISE	ARGOLO	SENA,	THAISSA	SPONFELDNER	GIUBERTI	ZAMPROGNO,	CARMEN	CARVALHO	BARREIRA-NIELSENInstitution1.	UVV,	Centro	Universitário	Vila	VelhaAbstract: The	Auditory	Steady	State	Response	(ASSR)	which	can	be	defined	as	electrophysiological	responses	to	continuous	tones	with	specific	frequency	modulated	amplitude	and	/	or	frequency,	are	likely	to	be	included	in	the	next	few	years	in	the	battery	of	audiological	tests	for	the	detection	of	hearing	loss.	However	research	by	bone	conduction	have	received	limited	attention.	The	objective	of	this	study	was	to	verify	the	gap	found	between	the	ASSR	bone	conduction	and	air,	then	compared	to	the	air-bone	gap	found	in	pure	tone	audiometry	and	ASSR.	Participated	in	this	study	young	adults	with	normal	hearing,	aged	between	18	and	28	years,	not	otological	problems	and	hearing	below	15dB	NA.	We	surveyed	the	carrier	frequencies	of	0.5,	1,	2	and	4	kHz	modulated	in	amplitude	and	frequency	from	multiple	stimulus	monaural.The	results	showed	a	gap	consistent	with	other	studies	in	the	area,ie,	a	moderately	strong	correlation	between	them.	Due	to	thedifficulties	of	artifact	from	the	bone	vibrator	to	estimate	thethresholds	and	the	level	of	sensory	acuity	of	the	respondents	may	be	noted	the	great	variability	of	response.	The	ASSR	is	a	method	that	can	predict	the	hearing	threshold	by	bone	conduction,	but	it	is	understood	that	to	become	a	clinical	tool	in	diagnosing	hearing	more	research	must	be	made	for	the	standardization	of	bone	conduction	PTA	before	clinical	implementation.mioloICA3.indd   98 22/03/2010   13:14:06

Analyze study of the exam P300 in individuals with normal hearing

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Analyze study of the exam P300 in individuals with normal hearing

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Lume 5.8