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  • Title: [Effect of rhDNase on the respiratory function and nutritional status of children and adolescents with mucoviscidosis].
    Author: Wizla-Derambure N, Michaud L, Sardet A, Deschildre A, Loeuille GA, Tassin E, Loire N, Buisine C, Boutry E, Dias J, Hecquet F, Turck D.
    Journal: Arch Pediatr; 1998 Apr; 5(4):378-83. PubMed ID: 9759156.
    Abstract:
    BACKGROUND: In 1994 we started recombinant human deoxyribonuclease (rhDNase) in every cystic fibrosis (CF) patient whatever his (her) clinical condition, provided they were aged more than 5 years and forced vital capacity (FVC) was > or = 40%. POPULATION AND METHODS: We reviewed retrospectively the effects of rhDNase in 69 CF children and adolescents during a 2-year follow-up. Patients (35 boys, 34 girls) received 2.5 mg of rhDNase once daily from a mean age of 8.5 years (range 5-16.4). Baseline spirometric values (% predicted) and nutritional status were as followed: FVC = 84.8 +/- 21.7; forced expiratory volume in 1 second (FEV1) = 80.8 +/- 22.2; peak flow = 89.7 +/- 34.2, forced expiratory fraction 25-75% (FEF 25-75) = 71.8 +/- 32.8; Z score weight/height = -0.41 +/- 1.14; Z score weight/age = -0.48 +/- 1.25, body mass index = 15.4 +/- 1.8; caloric intake = 107 +/- 25% of recommended dietary allowances (RDA). Patients had a Shwachman-Kulczycki's score of 87 +/- 9. Spirometric and nutritional data were analysed after 1, 3, 6, 12, 18 and 24 months of treatment and compared to baseline values (changes evaluated as percent change from mean baseline for spirometric data). Shwachman-Kulczycki's score was calculated after 24 months of rhDNase. RESULTS: An improvement of FVC (+10.7%, P < 0.001) and FEV1 (+12%, P < 0.01) was noted after one month of treatment and was maintained throughout the following 2 years around 8.7% (6.4-11.4) for FVC and 8.2% (7.3-9.1) for FEV1, P < or = 0.01. This was particularly observed in children aged 5 to 10 years, in boys and in patients with a baseline FVC under 70% predicted. There was no significant change in FEF 25-75. We observed an improvement of daily caloric intake from the third month (P < 0.05) and of body mass index from the sixth month (P = 0.02). This was particularly noted in girls. Z score weight/age was improved only during the first 3 months of treatment while Z score weight/height increased only after a 2 year follow-up. There was no significant change in Shwachman-Kulczycki's score after 24 months of rhDNase. CONCLUSION: rhDNase in CF children in effective on lung function as well as on nutritional status and the response to this treatment can be evaluated after the first 3 months.
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