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Background: Hearing loss is an unknown complication of diabetes mellitus (DM). The aim of this study was to evaluate hearing function using auditory brainstem response (ABR) in diabetic patients. Methods: The present case-control study was performed on thirty diabetic patients as a case group and thirty healthy individuals as a control group. Baseline demographic information, HbA1c level, and duration of diabetes were obtained from all diabetic patients. In all subjects, the ABR and pure-tone audiometry (PTA) tests were performed and the results were analyzed using the t-test and logistic regression. Results: The absolute latency of I was significantly lower in diabetes patients. The absolute latency of III and the interpeak latencies (IPL) I-III were significantly higher in diabetic patients. No significant relationship was noticed in the absolute latency of V and the IPL I-V among diabetic patients in the right and left ears (P>0.05). Conclusion: The results of this study suggested that diabetes may cause central auditory dysfunction manifested on the absolute latency of III, the IPL I-III and III-V.
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BACKGROUND: Previous studies showed that one of the complications of rheumatoid arthritis disease was auditory disorder. The goal of the present study was to compare the auditory status in patients with rheumatoid arthritis and healthy individuals. METHODS: In the present case-control study, 30 normal persons and 60 persons with rheumatoid arthritis with mean age of 46.72 and standard deviation of 6.76 of both genders were appraised using pure tone audiometry, tympanometry and speech audiometry. The mean disease duration in patients with rheumatoid arthritis was 12.51±6.09 years. RESULTS: The frequency of hearing loss in rheumatoid arthritis group was significantly more than the control group (p=0.001). All patients had sensorineural hearing loss. Only in 5% of rheumatoid arthritis group, abnormal tympanometry (as type) was reported. Speech discrimination score analysis showed significant difference between the patients with rheumatoid arthritis and controls. In terms of hearing threshold level, the mean hearing threshold level (in 2000, 4000 and 8000 Hz frequencies) of the patients with rheumatoid arthritis was significantly higher than control group in both ears (p<0.05). A positive significant correlation was found among mean hearing threshold level in 4000 and 8000 Hz frequencies and rheumatoid arthritis duration in both ears. CONCLUSION: The frequency of hearing loss and the average hearing threshold in RA patients were higher than healthy individuals. The most common type hearing loss is sensorineural.
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BACKGROUND: Benign paroxysmal positional vertigo (BPPV) is linked to vitamin D deficiency. This clinical trial aimed to determine the influence of vitamin D supplementation on intensity of BPPV. METHODS: The study population was selected consecutively and the diagnosis of BPPV was made by history and clinical examination and exclusion of other conditions. Intensity of BPVV was assessed based on VAS score (0-10). Serum 25-hydroxyvitamin D (25-OHD) was measured using ELISA method and levels < 20 ng/ml was considered a deficiency. All patients received rehabilitation treatment using Epley's maneuver one time per week for one month. Serum 25-OHD deficient patients were classified as treated and non-treated groups (rehabilitation with or without 50.000 IU cholecalciferol weekly for two months).The results of treatment were compared with vitamin D sufficient group as control. All patients were followed-up for 6 months. RESULTS: After two months of treatment, in both vitamin D treated and non-treated groups the intensity of BPPV decreased significantly as compared with control (P=0.001 for both groups) but at endpoint, the intensity of BPPV aggravated and regressed to the baseline value in vitamin D deficient non-treated group (P=0.001) whereas, in vitamin D treated group, improvement of BPPV remained stable and unchanged over the study period. CONCLUSION: This study indicates that correction of vitamin D deficiency in BPPV provides additional benefit to rehabilitation therapy (Epley maneuver) regarding duration of improvement. These findings suggest serum 25-OHD measurement in recurrent BPPV.
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BACKGROUND: Hearing loss is one of the common complaints of diabetics. The aim of this study was to evaluate the hearing status of diabetic patients in Babol, North of Iran. METHODS: The hearing status of 50 type 2 diabetic patients (case group) and 50 healthy individuals (control group) were evaluated from October 2011 to September 2012. Audiometry was done with the frequencies of 250, 500, 1000, 2000, 4000, 6000, 8000 HZ and speech tests like SRT (speech reception threshold), SDS (speech discrimination score) were performed. The data were collected and analyzed. RESULTS: The mean age of case group was 50.1±3 and in control group was 49.9±3.2 years. Hearing thresholds were 10.55.6, 10.76.1, 15.27.1, 169.6, 21.213.5, 26.416.5, 28.32 db in the right ear of the case group and 11.25.3, 9.74.9, 127.1, 14.29.4, 20.913.3, 25.115.6, 27.620.2 db in control group with different frequencies (p<0.05). Similar results were obtained in the left ear of both groups. The mean SRT in the right ear of the case group was 15.77.7 and control group was 9.24.8 and 13.56.9 in case and 9.14 in the left ear of case group (P=0.0001). SDS was 94.33.7 and in 96.23.3 in the right ear for the case and control group, respectively (P=0.0001). For the left ear, these values were 94.44.4 and 95.93.2, respectively (P=0.023). CONCLUSION: The results show that hearing loss in different frequencies and speech reception threshold were higher in diabetic group but speech discrimination score was higher in normal individuals. Audiological monitoring is recommended in diabetic patients during therapy.
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BACKGROUND: Vitamin D deficiency seems to be associated with pulmonary function deterioration. The present study was designed to investigate the relationship between serum vitamin D and forced expiratory volume in patients with chronic obstructive pulmonary disease (COPD). METHODS: From September 2011 to April 2012 eighty consecutive patients with COPD presented to an outpatient clinic of Babol University- Teaching Hospital entered to the study. Diagnosis of COPD was confirmed according to clinical findings and pulmonary function test. Serum 25-hydroxyvitamin D (25-OHD) was assessed by chemiluminuscence method and postbronchodilator forced expiratory volume in 1s (FEV1) was measured in all patients. The objective of this study was to determine the relationship between serum 25-OHD concentrations and FEV1 value. The patients were classified according to serum 25- OHD concentrations as less 10ng/ml, 10-19.9; 20-29.9; 30-39.9; and 40ng/ml or higher. The mean values of FEV1 for each class of serum 25-OHD were determined and compared. RESULTS: The mean age of patients was 67.4±11.5 years. The mean FEV1 volume in serum 25-OHD deficient COPD was lower than sufficient COPD (1.550±0.55 vs 1.650±-0.58, p=0.45). Mean FEV1 values increased from 1.55±0.55 L in patients with mean serum 25-OHD <20 ng/ml to 1.94±0.74 L in COPD patients with mean serum 25-OHD ±>40 ng/ml. There was a dose-response pattern of relationship between FEV1 and serum 25-OHD. However, the relationship did not reach to a statistically significant level. CONCLUSION: These findings indicated a relationship between serum 25-OHD concentration and FEV1 volume in patients with COPD and suggest optimization of serum vitamin D levels in COPD.
