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- Title
Renal bone disease in 76 patients with varying degrees of predialysis chronic renal failure: a cross-sectional study.
- Authors
Coen, G.; Mazzaferro, S.; Ballanti, P.; Sardella, D.; Chicca, S.; Manni, M.; Bonucci, E.; Taggi, F.
- Abstract
Background Renal osteodystrophy has been studied less extensively in predialysis than in dialysis patients. Different types of histological patterns in their natural evolution from moderate to advanced severity of renal insufficiency are only partially known, with special regard to adynamic bone disease and its relationship with osteomalacia. Methods We conducted a cross-sectional retrospective study on 76 unselected patients with chronic renal failure undergoing conservative treatment, with a wide range of severity of renal insufficiency. All the patients were subjected to bone biopsy for histological and histomorphometric evaluation. The patients, 44 males and 32 females ranging in age from 18 to 72 years and with serum creatinine 1.2–11.4 mg/dl, had not been exposed to aluminium-containing drugs and had never been treated with vitamin D or calcitriol. Results Ten patients had normal bone, nine were diagnosed with adynamic bone disease, 26 with mild mixed osteodystrophy, seven with predominant osteomalacia, 22 with advanced mixed osteodystrophy, and two with predominant hyperparathyroidism. Patients with adynamic bone disease had less severe chronic renal failure than the other pathological subgroups, intact PTH above the upper limit of normal, normocal-caemia, and reduced serum osteocalcin in line with a significantly lower ObS/BS. Conclusions It is postulated that adynamic bone disease is a form of renal osteodystrophy, separate from osteomalacia, appearing when bone resistance to PTH develops, probably a transient stage to more advanced hyperparathyroid histological classes with increasing severity of chronic renal failure.
- Publication
Nephrology Dialysis Transplantation, 1996, Vol 11, Issue 5, p813
- ISSN
0931-0509
- Publication type
Article
- DOI
10.1093/oxfordjournals.ndt.a027404