Unilateral hearing loss: benefit of amplification in sound localization, temporal ordering and resolution

Mondelli, Maria Fernanda Capoani Garcia; Santos, Marina De Marchi dos; Feniman, Mariza Ribeiro

doi:10.1590/2317-1782/20192018202

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Sumário

Original Article • CoDAS 32 (1) • 2020 • https://doi.org/10.1590/2317-1782/20192018202 copy

Unilateral hearing loss: benefit of amplification in sound localization, temporal ordering and resolution

Perda auditiva unilateral: benefício da amplificação na ordenação e resolução temporal e na localização sonora

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Purpose

To assess the hearing abilities of temporal ordering, temporal resolution and sound localization before and after the fitting of a hearing aid (HA) in individuals with unilateral hearing loss (UHL).

Methods

There were evaluated 22 subjects, aged 18 to 60 years, diagnosed with sensorineural or mixed UHL, from mild to severe degrees. The study was divided into two stages: the pre and post-adaptation of HA. In both phases, subjects performed an interview, application of Questionnaire for Disabilities Associated with Impaired Auditory Localization, auditory processing screening protocol (APSP) and Random Gap Detection Test (RGDT).

Results

This study found no statistically significant difference in sound localization and memory evaluations for verbal sounds in sequence, in RGDT and Questionnaire for Disabilities Associated with Impaired Auditory Localization.

Conclusion

With the effective use of hearing aids, individuals with UHL showed improvement in the auditory abilities of sound localization, ordering and temporal resolution.

Keywords
Hearing Aid; Unilateral Hearing Loss; Adult; Localization; Abilities

LDHQ	HA Adaptation Phase	Average	Minimum	Maximum	Median	Standard deviation	p (value)
Total Score	Pre	30.59	22.0	40.0	29.5	5.885	0.000^* * Significant
Total Score	Post	43.5	35.0	55.0	44.0	7.327	0.000^* * Significant
Average	Pre	2.18	1.57	2.85	2.14	0.421	0.000*
Average	Post	3.1	2.07	3.92	3.14	0.526	0.000*

SECAP	HA adaptation phase	Average	Minimun	Maximun	Median	Standard deviation	p (value)
SLT	Pre	3.32	2.00	5.00	3.00	0.995	0.005^* * Significant
SLT	Post	4.09	3.00	5.00	4.00	0.811	0.005^* * Significant
MTVS	Pre	1.86	0.00	3.00	2.00	0.889	0.049*
MTVS	Post	2.18	1.00	3.00	2.00	0.664	0.049*
MTSnV	Pre	2.27	0.00	3.00	2.50	0.827	0.815
MTSnV	Post	2.32	0.00	3.00	2.00	0.716	0.815

RGDT	HA adaptation phase	Average	Minimun	Maximun	Median	Standard deviation	p (value)
500Hz	Pre	50.91	5.00	150	50.0	44.898	0.022^* * Significant
500Hz	Post	34.18	2.00	150	17.5	34.191	0.022^* * Significant
1000Hz	Pre	56.68	2.00	150	50.0	49.206	0.004*
1000Hz	Post	38.50	2.00	150	15.0	38.278	0.004*
2000Hz	Pre	62.95	5.00	150	50.0	48.640	0.001*
2000Hz	Post	42.68	2.00	150	20.0	49.210	0.001*
4000Hz	Pre	85.23	10.0	300	50.0	77.205	0.003*
4000Hz	Post	38.95	2.00	150	15.0	44.210	0.003*
Average 500, 1, 2 and 4kHz	Pre	63.94	6.25	150	50.0	48.789	0.000*
Average 500, 1, 2 and 4kHz	Post	38.58	2.00	150	16.9	39.065	0.000*

Procedures		Hearing Loss	Average	Minimun	Maximun	Median	Standard deviation	p (value)
SECAP	SLT Pre	S	3.00	2.00	4.00	3.00	0.73	0.642
	SLT Pre	M	3.70	2.00	4.00	3.00	1.15	0.642
	SLT Post	S	4.16	4.00	5.00	4.00	0.71	0.101
	SLT Post	M	4.00	3.00	5.00	4.00	0.94	0.101
	MTVS Pre	S	1.75	1.00	3.00	2.00	0.86	0.524
	MTVS Pre	M	2.00	0.00	3.00	1.00	0.94	0.524
	MTVS Post	S	2.16	1.00	3.00	2.00	0.57	0.910
	MTVS Post	M	2.20	1.00	3.00	2.00	0.78	0.910
	MTSnV Pre	S	2.58	0.00	3.00	2.00	0.66	0.050^* * Significant
	MTSnV Pre	M	1.90	0.00	3.00	3.00	0.87	0.050^* * Significant
	MTSnV Post	S	2.16	0.00	3.00	2.00	0.83	0.287
	MTSnV Post	M	2.50	2.00	3.00	2.00	0.52	0.287
LDHQ	Score Pre	S	31.00	1.64	2.85	2.12	7.21	0.730
	Score Pre	M	30.10	1.57	2.78	2.30	4.28	0.730
	Average Pre	S	2.21	23.0	40.0	29.5	0.51	0.737
	Average Pre	M	2.15	22.0	35.0	30.0	0.30	0.737
	Score Post	S	44.66	2.35	3.57	3.12	8.11	0.426
	Score Post	M	42.10	2.07	3.92	3.20	6.38	0.426
	Average Post	S	3.18	35.0	50.0	43.5	0.58	0.439
	Average Post	M	3.00	39.0	55.0	45.5	0.45	0.439
RGDT	500Hz Pre	S	43.75	5.00	150	32.5	51.57	0.425
	500Hz Pre	M	59.50	15.0	150	37.5	36.09	0.425
	1000Hz Pre	S	44.75	2.00	150	30.0	56.08	0.220
	1000Hz Pre	M	71.00	5.00	150	35.0	37.25	0.220
	2000Hz Pre	S	52.08	5.00	150	50.0	51.80	0.260
	2000Hz Pre	M	76.00	5.00	150	37.5	43.51	0.260
	4000Hz Pre	S	75.00	10.0	300	50.0	87.56	0.509
	4000Hz Pre	M	97.50	15.0	150	37.5	65.03	0.509
	Average Pre	S	53.89	6.25	150	43.1	54.97	0.301
	Average Pre	M	76.00	11.25	51.25	39.40	39.54	0.301
	500Hz Post	S	29.75	2.00	90.0	32.5	39.78	0.518
	500Hz Post	M	39.50	5.00	150	17.5	27.12	0.518
	1000Hz Post	S	30.58	2.00	100	10.0	42.64	0.299
	1000Hz Post	M	48.00	5.00	150	17.5	31.81	0.299
	2000Hz Post	S	37.83	2.00	150	25.0	54.04	0.624
	2000Hz Post	M	48.50	2.00	150	12.5	44.84	0.624
	4000Hz Post	S	39.33	2.00	90.0	20.0	53.20	0.966
	4000Hz Post	M	38.50	5.00	150	20.0	33.17	0.966
	Average Post	S	34.37	2.00	92.5	21.2	44.98	0.592
	Average Post	M	43.62	6.25	150	14.4	32.17	0.592

Procedures		Ear	Average	Minimun	Maximun	Median	Standadr deviation	p (value)
SECAP	SLT Pre	RE	3.33	2.00	4.00	3.00	0.816	0.920
	SLT Pre	LE	3.29	2.00	5.00	3.00	1.380	0.920
	SLT Post	RE	4.13	4.00	5.00	4.00	0.834	0.729
	SLT Post	LE	4.00	3.00	5.00	4.00	0.816	0.729
	MTVS Pre	RE	2.07	0.00	3.00	2.00	0.961	0.119
	MTVS Pre	LE	1.43	1.00	3.00	2.00	0.535	0.119
	MTVS Post	RE	2.27	1.00	3.00	2.00	0.704	0.394
	MTVS Post	LE	2.00	1.00	3.00	2.00	0.577	0.394
	MTSnV Pre	RE	2.13	0.00	3.00	2.00	0.915	0.257
	MTSnV Pre	LE	2.57	0.00	3.00	2.00	0.535	0.257
	MTSnV Post	RE	2.20	0.00	3.00	2.00	0.775	0.267
	MTSnV Post	LE	2.57	0.00	3.00	2.00	0.535	0.267
LDHQ	Score Pre	RE	31.20	23.0	40.0	30.0	5.747	0.491
	Score Pre	LE	29.29	22.0	35.0	29.0	6.422	0.491
	Average Pre	RE	2.23	1.64	2.85	2.14	0.412	0.467
	Average Pre	LE	2.08	1.57	2.71	2.07	0.457	0.467
	Score Post	RE	42.47	35.0	55.0	45.0	8.254	0.345
	Score Post	LE	45.71	41.0	54.0	44.0	4.536	0.345
	Average Post	RE	3.02	2.07	3.92	3.21	0.593	0.345
	Average Post	LE	3.26	2.92	3.85	3.14	0.322	0.345
RGDT	500Hz Pre	RE	48.67	5.00	150	20.0	45.177	0.741
	500Hz Pre	LE	55.71	5.00	150	50.0	47.472	0.741
	1000Hz Pre	RE	56.80	2.00	150	50.0	48.668	0.987
	1000Hz Pre	LE	56.43	5.00	150	50.0	54.292	0.987
	2000Hz Pre	RE	63.33	5.00	150	50.0	41.819	0.959
	2000Hz Pre	LE	62.14	5.00	150	50.0	64.798	0.959
	4000Hz Pre	RE	86.33	10.0	300	50.0	78.569	0.924
	4000Hz Pre	LE	82.86	10.0	200	50.0	80.304	0.924
	Average Pre	RE	63.78	7.50	150	50.0	46.262	0.983
	Average Pre	LE	64.29	6.25	150	50.0	57.770	0.983
	500Hz Post	RE	30.80	2.00	90.0	20.0	24.748	0.510
	500Hz Post	LE	41.43	2.00	150	15.0	50.721	0.510
	1000Hz Post	RE	36.47	2.00	100	15.0	32.439	0.725
	1000Hz Post	LE	42.86	5.00	100	15.0	51.386	0.725
	2000Hz Post	RE	44.27	2.00	150	25.0	48.928	0.831
	2000Hz Post	LE	39.29	5.00	150	25.0	53.575	0.831
	4000Hz Post	RE	37.80	2.00	90.0	15.0	40.617	0.863
	4000Hz Post	LE	41.43	5.00	150	15.0	54.598	0.863
	Average Post	RE	37.33	2.00	92.5	17.5	33.283	0.833
	Average Post	LE	41.25	6.75	150	15	52.385	0.833

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[1] Conflict of interests: nothing to declare.