Brainstem Auditory Evoked Potentials in infants aged 1 to 24 months during a hearing health care service

Bellia, Cintia Gonçalves de Lima; Junior, Haraldo Artmann; Marques, Jair Mendes; Lüders, Débora; Gonçalves, Cláudia Giglio de Oliveira

doi:10.6061/clinics/2020/e1579

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

ORIGINAL ARTICLE • Clinics 75 • 2020 • https://doi.org/10.6061/clinics/2020/e1579 copy

Brainstem Auditory Evoked Potentials in infants aged 1 to 24 months during a hearing health care service

Authorship SCIMAGO INSTITUTIONS RANKINGS

OBJECTIVES:

Assessing infants’ hearing is of utmost importance, as hearing at this phase is required for the development of oral language. Through hearing, human beings are capable of developing communication. The Brainstem Auditory Evoked Potentials are an indispensable test to diagnose deafness in infants. This study aimed to analyze the results of the Brainstem Auditory Evoked Potentials in children with risk factors for hearing loss.

METHODS:

This cross-sectional study analyzed the Brainstem Auditory Evoked Potentials in 123 infants aged 1 to 24 months at a hearing health care service. The Vivosonic Integrity V500 equipment, which enabled the child to be awake while the testing was carried out, was used in this study. The data were compared by gestational age and sex, according to the standards suggested in the equipment handbook.

RESULTS:

A significant difference was verified for age ranges 4 to 6 months, 13 to 15 months (waves I and V), and 7 to 9 months (wave V). The lower values in absolute wave latencies were comparable to data from the equipment handbook, justifying the need for standardization of the screening process.

CONCLUSION:

There are some differences between the standards in the equipment handbook and those observed in our study. These results will serve as a reference for the standardization of the equipment used in the hearing health care service.

Electrophysiology; Hearing, Brainstem Auditory Evoked Potential; Infants

Age range (months)	Waves			Interpeak intervals
Age range (months)	I	III	V	I-III	III-V	I-V
1-3 (n=34)	1.55	4.16	6.26	2.62	2.09	4.74
SD	0.08	0.15	0.19	0.15	0.16	0.30
4-6 (n=49)	1.52	4.03	6.11	2.52	2.05	4.59
SD	0.08	0.15	0.20	0.15	0.21	0.21
7-9 (n=16)	1.54	4.01	5.96	2.48	1.95	4.43
SD	0.08	0.20	0.22	0.20	0.17	0.23
10-12 (n=2)	1.64	4.04	6.13	2.40	2.09	4.50
SD	0.08	0.15	0.07	0.19	0.19	0.02
13-15 (n=10)	1.43	3.77	5.70	2.33	1.97	4.30
SD	0.18	0.16	0.32	0.26	0.16	0.50
16-18 (n=3)	1.46	3.74	5.67	2.29	1.94	4.23
SD	0.18	0.37	0.30	0.39	0.25	0.30
19-21 (n=3)	1.48	3.72	5.67	2.27	1.94	4.17
SD	0.19	0.05	0.32	0.09	0.21	0.18
22-24 (n=6)	1.48	3.73	5.68	2.26	1.90	4.20
SD	0.12	0.38	0.30	0.20	0.34	0.37

Male							Female
Age range (months)	Absolute wave latencies			Interpeak intervals			Age range (months)	Absolute wave latencies			Interpeak intervals
	I	III	V	I-III	III-V	I-V		I	III	V	I-III	III-V	I-V
1-3 (n=19)	1.54	4.17	6.27	2.63*	2.11*	4.73*	1-3 (n=15)	1.57	4.15	6.28	2.58*	2.09*	4.71*
4-6 (n=23)	1.52	4.10	6.15	2.57	2.02	4.63	4-6 (n=26)	1.53	4.03	6.09	2.51	2.05	4.55
7-9 (n=10)	1.56	4.10*	6.04	2.54	1.94	4.49	7-9 (n=6)	1.52	3.86*	5.83	2.35	1.96	4.31
10-12 (n=1)	NA	NA	NA	NA	NA	NA	10-12 (n=1)	NA	NA	NA	NA	NA	NA
13-15 (n=4)	1.46	3.70	5.63	2.29	1.90	4.20	13-15 (n=6)	1.52	3.90	5.81	2.44	2.06	4.30
16-18 (n=1)	NA	NA	NA	NA	NA	NA	16-18 (n=2)	1.50	3.77	5.42	2.26	1.66	3.91
19-21 (n=2)	1.68	3.91	5.86	2.45	1.75	4.18	19-21 (n=1)	NA	NA	NA	NA	NA	NA
22-24 (n=3)	1.60	3.90	4.40	2.26	1.94	4.40	22-24 (n=3)	1.41	3.71	5.55	2.29	1.84	4.13

Male							Female
Age range (months)	Absolute latencies of waves			Interpeak intervals			Age range (months)	Absolute latencies of waves			Interpeak intervals
	I	III	V	I-III	III-V	I-V		I	III	V	I-III	III-V	I-V
1-3 (n=19)	1.55	4.17	6.26	2.63^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	2.12^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	4.81^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	1-3 (n=15)	1.53	4.15	6.24	2.61^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	2.02^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	4.71^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).
4-6 (n=23)	1.52	4.09^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	6.18^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	2.56^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	2.08	4.65^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	4-6 (n=26)	1.51	3.98^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	6.04^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	2.47^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	2.06	4.53^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).
7-9 (n=10)	1.50	4.09^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	6.04	2.59^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	1.94	4.54	7-9 (n=6)	1.54	3.87^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	5.85	2.32^* * Note: Student’s t-test at a significance level of 0.05 (5%); NA=not applicable (insufficient number of subjects).	1.98	4.31
10-12 (n=1)	NA	NA	NA	NA	NA	NA	10-12 (n=1)	NA	NA	NA	NA	NA	NA
13-15 (n=6)	1.44	3.73	5.72	2.31	1.97	4.27	13-15 (n=4)	1.41	3.83	5.71	2.47	1.88	4.62
16-18 (n=1)	NA	NA	NA	NA	NA	NA	16-18 (n=2)	1.62	3.77	5.48	2.14	1.71	3.88
19-21 (n=2)	1.61	3.87	5.80	2.45	1.64	4.19	19-21 (n=1)	NA	NA	NA	NA	NA	NA
22-24 (n=3)	1.58	3.76	5.99	2.23	2.23	4.4	22-23 (n=3)	1.48	3.75	5.60	2.24	1.84	4.10

Age range (months)	Absolute latencies waves I and V - Study		Absolute latencies waves I and V -Equipment		p	p
	I	V	I	V	I	V
1-3 (n=34)	1.55	6.27	-	-
SD	0.08	0.20
4-6 (n=49)	1.53	6.12	1.59	6.25	^* * Note: Student’s t-test, significance level of (5%). 0.0067	^* * Note: Student’s t-test, significance level of (5%). 0.0022
SD	0.09	0.20	0.17	0.32
7-9 (n=16)	1.54	5.96	1.59	6.10	0.1056	^* * Note: Student’s t-test, significance level of (5%). 0.0156
SD	0.08	0.22	0.16	0.26
10-12 (n=2)	1.57	6.07	1.59	5.90
SD	0.00	0.00	0.18	0.27	-	-
13-15 (n=10)	1.43	5.70	1.59	5.91	^* * Note: Student’s t-test, significance level of (5%). 0.0015	^* * Note: Student’s t-test, significance level of (5%). 0.0070
SD	0.18	0.32	0.17	0.27
16-18 (n =3)	1.46	5.67	1.58	5.84	-	-
SD	0.18	0.30	0.14	0.27	-	-
19-21 (n=3)	1.48	5.68	1.55	5.74	-	-
SD	0.19	0.32	0.12	0.19	-	-
22-24 (n=6)	1.48	5.68	1.57	5.71	0.0974	0.3887
SD	0.12	0.30	0.17	0.26	0.0974	0.3887

Faculdade de Medicina / USP Rua Dr Ovídio Pires de Campos, 225 - 6 and., 05403-010 São Paulo SP - Brazil, Tel.: (55 11) 2661-6235 - São Paulo - SP - Brazil
E-mail: clinics@hc.fm.usp.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author. E-mail: claudia.goncalves@utp.br