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BACKGROUND/AIMS: Nontuberculous mycobacteria (NTM) infection has been increasing worldwide in both general population and immunocompromised patients, which has also been reported in rheumatoid arthritis (RA) patients. This study aimed to identify the incidence and clinical characteristics of NTM infection in RA patients living in tuberculosis (TB) infection endemic area. METHODS: We performed a retrospective analysis of NTM infection cases in our RA registry at a tertiary referral center from January 1995 to December 2013. The clinical features of them were compared to those of 52 TB infection patients from same registry. RESULTS: Among 1,397 patients with RA, NTM infection was newly developed in 26 patients and the incidence of NTM infection was 164.8 per 100,000 patient-years. The Mycobacterium avium complex was the most frequent isolate (76.9%). None of the NTM infections had extrapulmonary involvement, which was rather common in TB infection (26.9%). Patients with NTM infection were older, received higher cumulative steroid doses, and had higher rates of past TB infection history and concomitant interstitial lung disease (ILD) than cases with TB infection. CONCLUSIONS: In South Korea, NTM infection is not rare in RA patients, and infection rates are growing. Physicians should be cautious about NTM infection in patients with a history of TB infection or concomitant ILD, even living in TB endemic area.
Arthritis, Rheumatoid* ; Humans ; Immunocompromised Host ; Incidence ; Korea* ; Lung Diseases, Interstitial ; Mycobacterium avium Complex ; Mycobacterium tuberculosis ; Nontuberculous Mycobacteria ; Retrospective Studies ; Tertiary Care Centers ; Tuberculosis

10.Diagnostic role of mean platelet volume and neutrophil to lymphocyte ratio in childhood brucellosis.

Sefika Elmas BOZDEMIR ; Yasemin Ay ALTINTOP ; Salih UYTUN ; Humeyra ASLANER ; Yasemin Altuner TORUN

The Korean Journal of Internal Medicine 2017;32(6):1075-1081

BACKGROUND/AIMS: Brucellosis patients present various non-specific clinical symptoms, such as fever, fatigue, sweating, joint pain, arthritis, myalgia, and headache. Based on the nonspecifity of its clinical signs and symtoms, we decided to evaluate whether mean platelet volume (MPV) , neutrophil to lymphocyte ratio (NLR), and platelet to lymphocyte ratio (PLR) will contribute to the diagnosis. METHODS: In this retrospective study, we reviewed hospital-records of 60 children with a confirmed diagnosis of brucellosis in Kayseri between January 2013 and January 2016, and compared the hematological parameters; white blood cell (WBC) count, hemoglobin (Hb), neutrophil count, lymphocyte count, platelet count, MPV, NLR, and PLR with 55 healthy age and gender matched children. Also, the well known inf lammation markers; erytrocyte sedimentation rate (ESR) and C-reactive protein (CRP) were compared between the patient and control group. RESULTS: We found significant difference among the Hb, platelet count, MPV and NLR values between the patient and control group (p < 0.05). There was no difference between WBC, neutrophil count, lymphocyte count and PLR between the patient and control group (p > 0.05). When the patients were divided into groups as arthritis positive and arthritis negative and compared to the control group; we found that the NLR is more significant in between the arthritis positive and control group (p = 0.013). Also, we found significant difference among the ESR and CRP values between the patient and control group (p < 0.001). CONCLUSIONS: The results of this study indicates that MPV and NLR values can be used as markers of inflammation in childhood brucellosis. Also, NLR is more valuable in children with brucella arthritis.
Arthralgia ; Arthritis ; Blood Platelets ; Brucella ; Brucellosis* ; C-Reactive Protein ; Child ; Diagnosis ; Fatigue ; Fever ; Headache ; Humans ; Inflammation ; Leukocytes ; Lymphocyte Count ; Lymphocytes* ; Mean Platelet Volume* ; Myalgia ; Neutrophils* ; Platelet Count ; Retrospective Studies ; Sweat ; Sweating

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10.Diagnostic role of mean platelet volume and neutrophil to lymphocyte ratio in childhood brucellosis.

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