Background: Chronic kidney disease (CKD) is associated with significant disconcertion in bone and mineral metabolism, which leads to alteration in serum concentrations of calcium(Ca), phosphorus(P), parathyroid hormone (PTH), and Vitamin D and it also leads to abnormalities in bone remodeling, renal osteodystrophy (ROD) and extraskeletal calcification. So we aim to assess the alteration in mineral metabolism, abnormal changes in bone mineral density (BMD) and extra skeletal calcification in newly detected, untreated predialysis stage 4 and 5 chronic kidney disease (CKD) patients at a tertiary care hospital in North India.
Methods: Hospital based cross sectional study was conducted in patients of CKD detected in Mahatma Gandhi Hospital Jaipur. Total 120 subjects of CKD measured for serum calcium (Ca), phosphorous (P), creatinine, 25-hydroxy Vitamin D [25(OH)D] and intact PTH (iPTH). Lateral lumbar X-ray performed in a standing position for abdominal aortic calcification (AAC) assessment using 24-point scale by Kauppila et al.
Results: Kauppila scale(K scale) significantly (p <0.001) increases with severity of CKD. K scale in stage 3 was 15.78
+3.27, in stage 4 it was 17.19
+3.20 and in stage 5 it was 19.62
+1.58. ‘z’ score for DEXA scan increases significantly (p<0.0001) with severity of disease calcification.
Conclusion: In our study we found newly detected Indian patients of CKD with high prevalence of disturbances in mineral metabolism which is shown by hyperparathyroidism, Vitamin D deficiency, BMD abnormality and valvular, vascular calcification.