Is there any association between calcium values and otosclerosis?
Keywords:Otosclerosis, Conductive hearing loss, Calcium, Stapedectomy
Aim: Otosclerosis; is an idiopathic disease caused by the occupation of the otic capsule and the stapes base with the spongioform bone. It is the most common type of conductive hearing loss after otitis media in otorhinolaryngology. There are no studies in the literature showing the relationship between blood calcium levels and hearing loss. The aim of this study is to investigate the blood calcium levels and hearing loss of patients with otosclerosis diagnosed retrospectively.
Methods: The study was performed case-control study. Patients were divided into two groups: patient and control. The patient group consisted of 40 patients who were operated for otosclerosis in the otolaryngology clinic between 2013 and 2017. Calcium values in the blood biochemistry of these patients and preoperative hearing tests were recorded retrospectively. The control group admitted for any reason, the otolaryngology clinic and consisted of 40 patients with non-ear disease. Calcium values in blood biochemistry and hearing tests performed in outpatient clinic were recorded retrospectively. The hearing of the patients in both groups was recorded by taking the average of the right and left ear.
Results: The mean age of the control group was 28 (2.4) (18-60) years. The mean age for the patient group was 32 (2.6) (19-68). No significant difference was observed between the two groups in terms of age (P=0.061). The control group was 10.8 (1.2) dB on the right and the left ear. The mean calcium blood levels in the control group were 9.8 (0.4) mg/dL. The mean right and left ear audiometry of the patient group was 38 (0.6) dB. The mean blood calcium level of the patient group was 11.7 (0.9) dB. There was a significant difference between the control group and the patient group in the audiometry test (P=0.024). There was no significant difference between the patient group and the control group in terms of blood calcium (P=0.078).
Conclusion: There was a significant deterioration in hearing in patients with otosclerosis. However, there was no significant increase in blood calcium levels. Therefore, there was no significant relationship between blood calcium level and hearing in otosclerosis.
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