Journal
OSTEOPOROSIS INTERNATIONAL
Volume 13, Issue 5, Pages 353-357Publisher
SPRINGER-VERLAG LONDON LTD
DOI: 10.1007/s001980200039
Keywords
adolescents; bone mineral density; children; end-stage renal failure; quantitative ultrasound; young adults
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The skeletal status in 30 children, adolescents and young adults (18 females, 12 males) with end-stage renal failure (ESRF) aged 9-23 years (mean 15.8 +/- 3.6 years) was evaluated using measurements of bone mineral density (BMD, g/cm(2)) at the spine and total body (TB) (Lunar DPX-L, USA), quantitative ultrasound (QUS) of the hand phalanges (DBM Sonic 1200, IGEA Italy) and laboratory investigations (parathyroid hormone, serum total and ionized calcium, serum phosphate). Eleven subjects were treated with hemodialysis and 19 with peritoneal dialysis. The mean value of the amplitude-dependent speed of sound (Ad-SoS, m/s) measured by QUS was significantly decreased in comparison with the value obtained in a group of 686 age-matched controls (1942 +/- 74 m/s vs 2050 +/- 77 m/s, p<0.0001). BMD measurements were also decreased in comparison with mean values for the healthy population (Z-scores for spine - 1.47, and for TB - 1.53). Duration of dialysis correlated significantly with spine-BMD, TB-BMD and Ad-SoS (r = -0.37, r= -0.45. r = -0.55, respectively, p<0.05), while duration of ESRF did not have such an influence. Laboratory investigations did not correlate with skeletal parameters. Ad-SoS correlated significantly with spine-BMD (r = 0.45, p<0.05) and TB-BMD (r = 0.56, p<0.01). Both QUS and BMD values correlated significantly with Tanner stages (r ranged from 0.59 to 0.69, p<0.001) and did not increase with age except for correlation between age and TB-BMD. In conclusion, skeletal status in the population studied is strongly affected by ESRF. Both QUS and BMD measurements show an ability to express skeletal changes in a similar manner, though the QUS parameter seems to be more sensitive at revealing changes due to renal failure.
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