Therapie · 2015
[Therapeutic Drug Monitoring of Valproic Acid in Children: A Prospective Study of The Effect of The Compliance and The Economic Level on the Trough Plasmatic Concentrations and Epileptic Seizures].
Сравнительное исследованиеАннотация на английскомСтатьяНазвание и аннотация: Перевод в очереди
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Charfi Rim, Lakhal Mohamed, Klouz Anis, Trabelsi Sameh, Salouage Issam
Аннотация
INTRODUCTION: Valproic acid (VA) is a widely used antiepileptic drug. Because of its pharmacokinetic variability and the influence of intrinsic and extrinsic factors such as the treatment compliance, VA therapeutic drug monitoring (TDM) is recommended in children. The aim of this study is to evaluate the effect of treatment compliance and the economic level on VA tough plasmatic concentration (TPC) and epileptic rhythm in children.
MATERIAL AND METHODS: A one-year prospective study (August 2008-August 2009) concerning children (age≤5 years) regularly treated by VA who had a VA TDM. So, 276 plasmatic samples from 238 children were collected. The children were divided in two groups as following: the group 1 (G1) presenting a good compliance and a reliable questioning and the group 2 (G2) presenting a bad compliance and a non reliable questioning. We evaluated the interindividual variability by correlating the TPC to the dose. Then, we divided the hole group in function of their economic levels (low-medium-high).
RESULTS: Sex ratio male/female was 1.3. Median age was 5 years+/-3,9. The mean TPC was 62 µg/mL [0.12-131 µg/mL]. VA TPC were in the therapeutic range (TR) in 62%. Adverse drug reactions were noted in 4.2% of the children. G1 represented 70% of the children and G2, 30%. The TPC were in the TR in 67% of G1 and 51% of G2 (p=0.02). There was a significant difference between the TPC in G1 and G2 (p=0.02).There was no significative difference in the TPC in function of the economic levels. There was no correlation between TPC and the administered doses. The epileptic seizures were more spaced in children with therapeutic TPC than those with TPC in the TR (p=0.002) and in G1 than in G2 (p=0.03).
CONCLUSIONS: Compliance should be appropriate in order to optimize the TDM rule. A good compliance and a therapeutic TPC allow a better control of epileptic seizures.
MATERIAL AND METHODS: A one-year prospective study (August 2008-August 2009) concerning children (age≤5 years) regularly treated by VA who had a VA TDM. So, 276 plasmatic samples from 238 children were collected. The children were divided in two groups as following: the group 1 (G1) presenting a good compliance and a reliable questioning and the group 2 (G2) presenting a bad compliance and a non reliable questioning. We evaluated the interindividual variability by correlating the TPC to the dose. Then, we divided the hole group in function of their economic levels (low-medium-high).
RESULTS: Sex ratio male/female was 1.3. Median age was 5 years+/-3,9. The mean TPC was 62 µg/mL [0.12-131 µg/mL]. VA TPC were in the therapeutic range (TR) in 62%. Adverse drug reactions were noted in 4.2% of the children. G1 represented 70% of the children and G2, 30%. The TPC were in the TR in 67% of G1 and 51% of G2 (p=0.02). There was a significant difference between the TPC in G1 and G2 (p=0.02).There was no significative difference in the TPC in function of the economic levels. There was no correlation between TPC and the administered doses. The epileptic seizures were more spaced in children with therapeutic TPC than those with TPC in the TR (p=0.002) and in G1 than in G2 (p=0.03).
CONCLUSIONS: Compliance should be appropriate in order to optimize the TDM rule. A good compliance and a therapeutic TPC allow a better control of epileptic seizures.