Background. Neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) give information about many diseases. An increase in inflammation markers occurs in patients with obstructive sleep apnea syndrome (OSAS). Objectives. The aim of this study is to determine the relationship between OSAS and NLR and PLR values. Material and Methods. Two hundred eighty four patients with complaints of snoring and excessive daytime sleepiness were included in the study. Polysomnography had been performed on all patients and the control group. Fourty eight of these patients with apnea-hypopnea index (AHI) less than 5 (pure snoring) were included in the control group, 67 patients with AHI between 5 and 14.9 in the mild OSAS group, 61 patients with AHI between 15 and 29.9 in the moderate OSAS group and 108 patients with AHI more than 30 in the severe OSAS group. NLR and PLR values were calculated from the complete blood count (CBC) analysis of the patients and control group. The OSAS and control groups were compared by age, gender, body mass index (BMI) and PSG parameters as well as NLR and PLR values. Results. The PLR value in the OSAS group was found to be less than in the control group (p = 0.006). As the non-REM AHI increased, the value of PLR decreased. As the nocturnal time spent with arterial oxygen saturation < 90% increased, the value of NLR was determined to increase. Conclusions. NLR and PLR values can give valuable information in OSAS (Adv Clin Exp Med 2015, 24, 4, 623-627).
OBJECTIVE:The etiopathogenesis of sudden sensorineural hearing loss (SSNHL) is not clearly defined. Inflammation is being emphasized in its etiology. Neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are the parameters that show inflammation that can be obtained easily without additional cost. In this study, we aimed at delineating the relationship between SSNHL and the inflammation markers NLR and PLR.
MATERIALS and METHODS:This study was performed with 102 patients diagnosed with SSNHL and 119 sex-and age-matched controls. All subjects in the study and the control group had their complete blood count (CBC) results, which were evaluated retrospectively to calculate NLR and PLR values. All patients underwent an audiological examination on the 1 st , 3rd, 10 th , and 30 th days of the hearing loss. All patients received 1 mg/kg IV prednisolone treatment in tapered amounts to be completed in 15 days. Based on the improvements seen in the audiograms, the patients were divided into two groups: responders and non-responders to treatment.
RESULTS:PLR and NLR values of the patient group were significantly higher than in the control group (p<0.001, p<0.001). Furthermore, patients who responded to treatment had significantly higher NLR values than those who did not respond (p=0.010).
CONCLUSION:In this study, NLR and PLR values were found to be significantly high in SSNHL patients. PLR value was investigated for the first time in the literature in SSNHL patients. NLR and PLR values are parameters that aid in the diagnosis of SSNHL. Moreover, SSNHL patients who had higher NLR values responded to the treatment better.
In this study, we showed for the first time that olfactory dysfunction may be present in patients with vitamin B12 deficiency. Apart from a negative correlation of age with odor identification score, none of the other parameters studied showed correlations with olfactory dysfunction.
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