Secondary hyperparathyroidism among Nigerians with chronic kidney disease.

BACKROUND: Secondary hyperparathyroidism (SHPT) is a manifestation of chronic kidney disease mineral bone disorder (CKD-MBD). SHPT is common in patients with chronic kidney disease (CKD) and is associated with significant morbidity and mortality. METHODS: A cross- sectional descriptive study involving 230 patients with CKD. RESULTS: The mean age of the study population was 44.17±15.24 years. The median intact parathyroid hormone and alkaline phosphatase levels were 96pg/ml (range 4-953pg/ml) and 88 iu/l (range 10-800 iu/l) respectively. The mean (with standard deviation) calcium, serum phosphate, calcium phosphate product and haemoglobin levels were 2.22±0.29mmol/l, 1.8±0.62mmol/l, 3.94±1.42mmol2/l2 and 9.90±1.87g/dl respectively. Majority of patients had advanced CKD with 70.3% of patients in stage G5. The prevalence rates of SHPT, hypocalcaemia, hyperphosphataemia, elevated alkaline phosphatase and elevated calcium phosphate product were 55.2%, 34.8%, 66.1%, 42.2% and 25.2% respectively.Univariate analysis revealed that SHPT was associated with hypocalcaemia, hyperphosphataemia, elevated alkaline phosphatase, proteinuria, anaemia, hypertension, left ventricular hypertrophy and stage of kidney disease; being worse with advancing kidney disease. Independently associated with SHPT were hypocalcaemia (OR=4.84), hyperphosphataemia (OR=3.06), and elevated alkaline phosphatase (OR=2.04). CONCLUSION: The prevalence of SHPT in CKD is high, occurs early and is independently associated with hypocalcaemia, hyperphosphataemia and elevated alkaline phosphatase. The prevalence of SHPT also increases with worsening renal function.

Chronic kidney disease screening: Results of the 2013 World Kidney Day activities conducted at the Jos University Teaching Hospital

Background: Chronic kidney disease (CKD) is on the rise globally due to the increase in prevalence of common risk factors. Screening for CKD risk factors is important for early detection and institution of measures to retard its progression. This study aimed to determine the markers of CKD and its risk factors in a selected population.Methods: A cross sectional study of 510 individuals who were recruited during the 2013 world kidney day activities. History, clinical examination as well as the collection of urine and blood samples was performed on each participant to determine the presence of CKD and its risk factors. CKD markers were defined as the presence of proteinuria and or an estimated glomerular filtration rate (eGFR) of < 60ml/min.Results: The mean age of the participants was 39±11 years with majority of them being females (64.7%). Hypertension was present in 256 (50.2%) while diabetes mellitus was seen in 27 (5.29%). Forty three individuals (8.4%) had proteinuria while the prevalence of CKD markers was 10.5%. Only age, (OR =1.03; 95% CI: 1.01-1.06) was found to be a factor independently associated with the development of CKD. Conclusion: Though the prevalence of the traditional risk factors for CKD was high, only age was found to be independently associated with CKD markers.Screening exercise is encouraged for the early detection of CKD markers with a view to mitigating their impact