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ORIGINAL ARTICLE
Year : 2019  |  Volume : 21  |  Issue : 1  |  Page : 63-68

The Course of Renal Functions in COPD. Two Statition: Exacerbation and Stable Period


1 Department of Chest Diseases, Doctor Akcicek State Hospital, Kyrenia, North Cyprus
2 Department of Chest Diseases, Faculty of Medicine, Ufuk University, Ankara, Turkey
3 Department of Biostatistics, Faculty of Medicine, Yüzüncü Yil University, Van, Turkey
4 Department of Chest Diseases, Faculty of Medicine, Hitit University, Çorum, Turkey

Correspondence Address:
Dr. Ayse Baha
Department of Chest Diseases, Doctor Akcicek State Hospital, Kyrenia
North Cyprus
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ejop.ejop_28_19

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OBJECTIVE: Comorbidities in chronic obstructive pulmonary disease (COPD) are important factors that determine the prognosis of the disease. However, there are few studies about renal dysfunction. We aimed to compare the renal functions in COPD patients with stable and exacerbation periods and to determine the frequency of acute renal failure (ARF) during exacerbation. MATERIALS AND METHODS: The files of 320 patients with COPD (forced expiratory volume in 1 s/forced vital capacity <70% in pulmonary function test) who were admitted to our hospital between 2015 and 2016 were evaluated retrospectively. After exclusion criteria, 113 patients were included in the study. Data were analyzed by appropriate statistical method. RESULTS: Ninety (80.4%) of the patients were male and 23 (19.6%) were female. In the exacerbation period, blood urea nitrogen (P < 0.001), creatinine (P < 0.001), white blood cell (P < 0.001), C-reactive protein (P < 0.001), and sedimentation (P < 0.001) were higher than that in the stable period. Furthermore, hemoglobin (P = 0.021) and estimated glomerular filtration rate (eGFR) (P < 0.001) were significantly lower. The number of emergency department admission in patients with eGFR <60 ml/min during the exacerbation more than the patients with eGFR ≥60 ml/min. Twenty (17.7%) patients have developed ARF during exacerbation (eGFR <60 ml/min). CONCLUSION: In COPD exacerbation period, kidney function is affected negatively in most patients (even if it does not reach the ABY border) and tends to improve in the stable period. In patients with COPD, it is thought that the causes of respiratory failure negatively affect renal function.


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