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When do paediatric patients with familial hypercholesterolemia need statin therapy?
Journal of mother and child. 2021 January 30
INTRODUCTION: Familial hypercholesterolemia (FH) is one of the most common autosomal dominant disorders. It is characterized by elevated LDL cholesterol levels occurring already by early childhood. Awareness of health risks in FH patients should incite health professionals to actively seek and treat children with lipid disorders to reduce their risk of myocardial infarction and stroke.
OBJECTIVE: The aim of the study was to evaluate the suitability of taking into account the following parameters: ApoB/ApoA index, IMT and e-tracking examination, when initiating statin therapy in FH patients.
MATERIALS AND METHODS: The study included 57 male and female patients aged 9.57±3.2 years (ranging from 1 year to 17 years), diagnosed with familial hypercholesterolemia confirmed by molecular testing. All the participants had their lipid profile, ApoA and ApoB levels determined. Carotid intima-media thickness (IMT) was measured by carotid ultrasound and arterial stiffness was assessed by e-tracking. The dietary treatment efficacy was monitored in 40 patients and the 12-month combination treatment efficacy in 27 patients. The study was conducted prospectively and retrospectively. Statistical analysis was performed with the EPIINFO Ver. 7.1.1.14 statistical software package.
RESULTS: Patients with familial hypercholesterolemia had high mean levels of total cholesterol and LDL cholesterol (287±67 mg/dL and 213±73 mg/dL respectively). 34.37% of the study subjects had a markedly increased ApoB/ApoA index. On IMT or e-tracking examination all the subjects (100%) had vascular abnormalities. After 6 months of a low-cholesterol diet, the mean total and LDL cholesterol levels in the serum had been reduced by 7.2% and 6.2%, respectively. Statins in an average dose of 10.42±2.49 mg daily were prescribed to 36 patients. After one year of the statin therapy, the average serum total and LDL cholesterol levels were 203.5±34.8 mg/dL and 139.1±32.1 mg/dL, respectively, and were still above the target values. Moreover, side effects of the statin therapy were monitored. An increase in AST levels seen in the study group was not statistically significant. The mean creatine kinase level was within the range of normal. Moreover, in our study material we estimated the risk of cardiovascular events in relation to the ApoB/ApoA index. Higher cardiovascular risk was found in 34.37% participants.
CONCLUSIONS: Increased risk of cardiovascular events based on ApoB/ApoA index and carotid e-tracking or IMT examination in paediatric patients with FH is an indication for statin therapy initiation.
OBJECTIVE: The aim of the study was to evaluate the suitability of taking into account the following parameters: ApoB/ApoA index, IMT and e-tracking examination, when initiating statin therapy in FH patients.
MATERIALS AND METHODS: The study included 57 male and female patients aged 9.57±3.2 years (ranging from 1 year to 17 years), diagnosed with familial hypercholesterolemia confirmed by molecular testing. All the participants had their lipid profile, ApoA and ApoB levels determined. Carotid intima-media thickness (IMT) was measured by carotid ultrasound and arterial stiffness was assessed by e-tracking. The dietary treatment efficacy was monitored in 40 patients and the 12-month combination treatment efficacy in 27 patients. The study was conducted prospectively and retrospectively. Statistical analysis was performed with the EPIINFO Ver. 7.1.1.14 statistical software package.
RESULTS: Patients with familial hypercholesterolemia had high mean levels of total cholesterol and LDL cholesterol (287±67 mg/dL and 213±73 mg/dL respectively). 34.37% of the study subjects had a markedly increased ApoB/ApoA index. On IMT or e-tracking examination all the subjects (100%) had vascular abnormalities. After 6 months of a low-cholesterol diet, the mean total and LDL cholesterol levels in the serum had been reduced by 7.2% and 6.2%, respectively. Statins in an average dose of 10.42±2.49 mg daily were prescribed to 36 patients. After one year of the statin therapy, the average serum total and LDL cholesterol levels were 203.5±34.8 mg/dL and 139.1±32.1 mg/dL, respectively, and were still above the target values. Moreover, side effects of the statin therapy were monitored. An increase in AST levels seen in the study group was not statistically significant. The mean creatine kinase level was within the range of normal. Moreover, in our study material we estimated the risk of cardiovascular events in relation to the ApoB/ApoA index. Higher cardiovascular risk was found in 34.37% participants.
CONCLUSIONS: Increased risk of cardiovascular events based on ApoB/ApoA index and carotid e-tracking or IMT examination in paediatric patients with FH is an indication for statin therapy initiation.
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