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Normative data for brainstem auditory evoked potential responses in North Indian menopausal females
Shallu Mittal1, Supriya Arora2, Sharat Gupta1, Sonika Loona3, Kamal Dev Singh4, Kashish Mehra3
1 Department of Physiology, Kalpana Chawla Government Medical College, Karnal, Haryana, India
2 Department of Physiology, Gian Sagar Medical College, Banur, Punjab, India
3 Kedlec Primary Care Clinic, Pasco, USA
4 Department of Physiology, Government Medical College, Patiala, Punjab, India
Correspondence Address:
Sharat Gupta,
Department of Physiology, Kalpana Chawla Government Medical College, Karnal, Haryana
India
 Source of Support: None, Conflict of Interest: None DOI: 10.4103/mjdrdypu.mjdrdypu_650_21
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Background: Ovarian hormones are known to influence central neuronal functioning. Many studies have established the brainstem auditory evoked potential (BAEP) pattern vis-à -vis the cyclical fluctuations of these hormones in young females; however, there is a paucity of research involving BAEP patterns among menopausal females. Aim: This study was conducted to provide normative values for various BAEP parameters in menopausal females from North India. Materials and Methods: A cross-sectional study was done on 100 females aged 46–70 years. BAEP recording was done using a standardized protocol. The data were analyzed using SPSS software. It consisted of mean wave latencies I, II, III, IV, and V and interpeak latencies (IPL) I-V, I-III, and III-V. Student's unpaired t-test was used for statistical analysis. Results: The average value of means of wave latencies and IPL from both the ears was obtained. The latencies of waves I, II, III, IV, and V were 1.82 ± 0.27 ms, 2.81 ± 0.27 ms, 4.09 ± 0.35 ms, 4.87 ± 0.33 ms, and 6.19 ± 0.31 ms, respectively. The mean values of IPL I-V, I-III, and III-V were 4.37 ± 0.38 ms, 2.26 ± 0.33 ms, and 2.1 ± 0.32 ms, respectively. Conclusion: The study findings compared favorably with already existing data from similar studies conducted elsewhere. The data from the present study would prove useful to the clinicians to detect subtle neurodegenerative changes at an early stage within the central auditory pathways, even in the absence of any perceptible hearing loss, in this subset of population.
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