Hormone research in paediatrics · 2010
Low bone mineral density and high incidences of fractures and vitamin D deficiency in 52 pediatric cancer survivors.
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Bilariki Kalliopi, Anagnostou Elli, Masse Virginie, Elie Caroline, Grill Jacques, Valteau-Couanet Dominique, Kalifa Chantal, Doz François, Sainte-Rose Christian, Zerah Michel, Mascard Eric, Mosser Françoise, Ruiz Jean-Charles, Souberbielle Jean-Claude, Eladari Dominique, Brugières Laurence, Polak Michel
Аннотация
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.
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.