OBJECTIVE: To evaluate bone mineral density (BMD), fractures, and vitamin D deficiency in pediatric patients in complete remission of solid tumor; and to identify risk factors for these three abnormalities. STUDY DESIGN: Data were collected prospectively after completion of cancer treatment. Hormonal and vitamin D deficiencies were treated. The patients were evaluated again 1 year later. PATIENTS: 52 consecutive patients, 30 boys and 22 girls. Among them, 21 completed the second evaluation. MEASUREMENTS: A clinical examination, nutritional assessment, and laboratory workup were performed. BMD was measured by absorptiometry. RESULTS: Calcium intake was inadequate in 75% of patients and vitamin D reserves were low in 61.5%. BMD was low at the spine in 32.7%, and at the femur in 24% of patients. Spinal and femoral BMD Z-scores correlated significantly with each other. Femoral BMD Z-score showed significant positive correlations with changes in body mass index, urinary calcium/creatinine ratio, and time since treatment completion, and a significant negative correlation with treatment duration. Fractures were noted in 10 patients but were not correlated with BMD. In the 21 re-evaluated patients, no significant improvements were found in calcium intake, vitamin D status, or BMD Z-score. CONCLUSIONS: Survivors of childhood solid cancer have high rates of insufficient calcium intake, vitamin D deficiency, low bone mass and fractures.
OBJECTIVE: To evaluate bone mineral density (BMD), fractures, and vitamin D deficiency in pediatric patients in complete remission of solid tumor; and to identify risk factors for these three abnormalities. STUDY DESIGN: Data were collected prospectively after completion of cancer treatment. Hormonal and vitamin D deficiencies were treated. The patients were evaluated again 1 year later. PATIENTS: 52 consecutive patients, 30 boys and 22 girls. Among them, 21 completed the second evaluation. MEASUREMENTS: A clinical examination, nutritional assessment, and laboratory workup were performed. BMD was measured by absorptiometry. RESULTS:Calcium intake was inadequate in 75% of patients and vitamin D reserves were low in 61.5%. BMD was low at the spine in 32.7%, and at the femur in 24% of patients. Spinal and femoral BMD Z-scores correlated significantly with each other. Femoral BMD Z-score showed significant positive correlations with changes in body mass index, urinary calcium/creatinine ratio, and time since treatment completion, and a significant negative correlation with treatment duration. Fractures were noted in 10 patients but were not correlated with BMD. In the 21 re-evaluated patients, no significant improvements were found in calcium intake, vitamin D status, or BMD Z-score. CONCLUSIONS: Survivors of childhood solid cancer have high rates of insufficient calcium intake, vitamin D deficiency, low bone mass and fractures.
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Authors: Jenneke E van Atteveld; Iris E Verhagen; Marry M van den Heuvel-Eibrink; Hanneke M van Santen; Inge M van der Sluis; Natascia Di Iorgi; Jill H Simmons; Leanne M Ward; Sebastian J C M M Neggers Journal: Cancer Med Date: 2021-06-08 Impact factor: 4.452