Abstract Aim: To assess the prevalence of chronic renal failure (concealed and overt) in patients
with COPD.
Patients and methods: This study was conducted on 150 patients who were classified into three
groups: Group I: 67 patients with COPD, Group II: 33 COPD patients with co morbidities (diabetes
mellitus, hypertension and or ischemic heart disease). Group III: (control group): 50 patients
with other diseases such as diabetes mellitus, ischemic heart disease and or hypertension. All
patients were subjected to: (1) Full history taking. (2) Complete clinical examination. (3) Anthropometric
measurements (weight, height and body mass index). (4) Arterial oxygen saturation. (5)
Radiological examination (Plain chest X-ray posterior–anterior view and Pelvi-abdominal ultrasound).
(6) ECG and Echocardiography. (7) Spirometry. (8) Laboratory investigations (complete
blood picture, erythrocyte sedimentation rate, Liver function tests, serum creatinine, blood urea
and uric acid and GFR, total cholesterol, sodium, potassium and chloride concentration).
Results: In group I, there were 8 patients who had CRF (11.94%), 5 patients had overt CRF
(7.46%) and 3 patients had concealed CRF (4.48%). In group II, there were 11 patients with
CRF (33.33%), 6 patients had overt CRF (18.18%) and 5 patients had concealed CRF
(15.15%). In group III, there were 9 patients having CRF (18%), 6 patients had overt CRF
(12%) and 3patients had concealed CRF (6%). In COPD (group I and II) the overall prevalence
of CRF was 19%.
Conclusion: CRF either concealed or overt may be associated with COPD patients and should
be screened, not only by serum creatinine level but also by the estimated GFR to recognize the cases
of concealed CRF who have low GFR despite normal serum creatinine level.
2016 The Egyptian Society of Chest Diseases and Tuberculosis. Production and hosting by Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-ncnd/
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