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Paper Details

Impact of Systemic Arterial Hypertension on Cochlear Function

Impact of Systemic Arterial Hypertension on Cochlear Function

José Luis Treviño-González, Germán A Soto-Galindo, Félix Maldonado-Chapa

Journal Title:Acta Scientific Otolaryngology
Abstract


Background: Systemic arterial hypertension is a highly prevalent disease that has been associated with cochlear impairment. Aims: The purpose of our study is to evaluate hearing thresholds and to identify the presence of tinnitus and its severity in patients with hypertension and compare them with a healthy control group.Methods: A cross-sectional and comparative study was performed, comparing 131 patients with hypertension to 331 healthy con-trols. Subjects underwent pure tone audiometry to evaluate hearing thresholds for low, mid, and high frequencies and speech audi-ometry. All subjects were evaluated for the presence of tinnitus. Tinnitus handicap index was completed to determine the severity and impact of tinnitus on quality of life. Results: In the hypertension group mean hearing thresholds in low frequencies were 18.8 dB (± 8.06), 21.2 dB (± 9.72) in mid fre-quencies, and 35.9 dB (± 17.42) in high frequencies; for which a significant statistical increase was shown in low frequencies (p = 0.0001), mid frequencies (p = 0.0003), and high frequencies (p = 0.0001) compared with the control group. A significant difference (p = 0.0001) was found in the prevalence of tinnitus of hypertension patients (80%) compared with control subjects (17%). We observed a mean score 15.98 (± 17.67) in the tinnitus handicap index of patients with hypertension showing a significant difference compared to a mean score 4.55 (± 1.51) in the control group (p = 0.001). Conclusion: A significant increase in hearing thresholds, prevalence, and severity of tinnitus in patients with hypertension was shown compared to a healthy control group. This study consolidates an association between systemic arterial hypertension and cochlear impairment.Keywords: Systemic Arterial Hypertension; Hearing Loss; Tinnitus; Audiometry