Unlabelled: A study was undertaken to assess types of RO by a dynamic modification of osteoscintigraphy 53 pts dialyzed for 27-75 mths, 19-52 yrs old were divided, according to histological bone pictures, into 4 groups: I) 11 pts with hyperparathyroidism, II) 12 pts with osteomalacia, III) 11 pts with mixed RO, IV) 11 pts were after parathyroidectomy (PTE) and 13 controls.
Investigations: the rate of 99mTc-Sn-HEDP accumulation in the skeleton, skeletal/background radioactivity index both registered for 60 min. (parameters K and P), serum levels of C-PTH, bone isoenzyme of alkaline phosphatase (bALP), acid phosphatase (ACP), free hydroxyproline (S-Hypro).
Results: 1. compared to controls: elevations of K and all biochemical parameters, P in groups I and III (p < 0.01 - < 0.001) were found. 2. Group 1 was characterized by the highest values of all parameters compared to groups II and IV (p < 0.01). 3. Linear relationships were found between K and bALP (p < 0.01), P and bALP, ACP, S-Hypro (p < 0.01) in pts of groups I, II, III. 4. PTE in group IV was followed by a decrease in all parameters (p < 0.01) compared to values of the same pts in group I. Aluminum osteopathy was present in 2/3 of cases in group II showing the lowest values of all parameters.
Conclusion: DBS is a sensitive method for assessing bone turnover rate according to the degree of skeletal uptake of radionuclide. In this manner it is possible to determine both the type of RO and it's further development in repeated measurements.
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