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- W4283072923 abstract "The extent of intervention effects on carotid intima-media thickness (CIMT) can predict the degree of atherosclerotic cardiovascular risk-reduction. We hypothesized that regular lipoprotein apheresis over the course of 10 years might slow down progression of CIMT in patients with severe hypercholesterolemia. This case series describes 10 Caucasian patients (mean age 60 ± 9 years, 70% female, 80% statin intolerant) with a severe hypercholesterolemia phenotype treated with lipoprotein apheresis between 2005 and 2020 (mean duration, 10 ± 4 years). The median pretreatment low-density lipoprotein cholesterol (LDL-C) level was 214 mg/100 ml (95% confidence interval, 145 to 248), lipoprotein(a) (Lp[a]), 26 mg/100 ml (15 to 109; 40% with Lp(a)>60 mg/100 ml). Three patients were diagnosed with a monogenic cause. The baseline mean CIMT was 850 ± 170 µm, and maximum CIMT was 1,040 ± 220 µm across the age range of 46 to 70 years. Acute effects of lipoprotein apheresis determined as a difference before and immediately after the procedure were estimated as a median of 72 ± 8% and 75 ± 7% reduction in the LDL-C and Lp(a) levels, respectively. Using the imputed trajectories, period-specific on-treatment time-weighted averages for LDL-C and Lp(a) were 141 mg/100 ml (interquartile range, 89 to 152; 38% reduction from the baseline) and 24 mg/100 ml (interquartile range, 12 to 119; 19% reduction from baseline), respectively. The number of patients with CIMT above their “vascular age” decreased from 80% to 30% over the treatment course. In conclusion, an increase in CIMT seen with advanced age and severe hypercholesterolemia was halted with lipoprotein apheresis with an estimated annual rate of change in mean common CIMT of −4 µm/y and maximum CIMT of −3 µm/y. The extent of intervention effects on carotid intima-media thickness (CIMT) can predict the degree of atherosclerotic cardiovascular risk-reduction. We hypothesized that regular lipoprotein apheresis over the course of 10 years might slow down progression of CIMT in patients with severe hypercholesterolemia. This case series describes 10 Caucasian patients (mean age 60 ± 9 years, 70% female, 80% statin intolerant) with a severe hypercholesterolemia phenotype treated with lipoprotein apheresis between 2005 and 2020 (mean duration, 10 ± 4 years). The median pretreatment low-density lipoprotein cholesterol (LDL-C) level was 214 mg/100 ml (95% confidence interval, 145 to 248), lipoprotein(a) (Lp[a]), 26 mg/100 ml (15 to 109; 40% with Lp(a)>60 mg/100 ml). Three patients were diagnosed with a monogenic cause. The baseline mean CIMT was 850 ± 170 µm, and maximum CIMT was 1,040 ± 220 µm across the age range of 46 to 70 years. Acute effects of lipoprotein apheresis determined as a difference before and immediately after the procedure were estimated as a median of 72 ± 8% and 75 ± 7% reduction in the LDL-C and Lp(a) levels, respectively. Using the imputed trajectories, period-specific on-treatment time-weighted averages for LDL-C and Lp(a) were 141 mg/100 ml (interquartile range, 89 to 152; 38% reduction from the baseline) and 24 mg/100 ml (interquartile range, 12 to 119; 19% reduction from baseline), respectively. The number of patients with CIMT above their “vascular age” decreased from 80% to 30% over the treatment course. In conclusion, an increase in CIMT seen with advanced age and severe hypercholesterolemia was halted with lipoprotein apheresis with an estimated annual rate of change in mean common CIMT of −4 µm/y and maximum CIMT of −3 µm/y." @default.
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- W4283072923 date "2022-08-01" @default.
- W4283072923 modified "2023-09-26" @default.
- W4283072923 title "Effect of Lipoprotein Apheresis on Progression of Carotid Intima-Media Thickness in Patients with Severe Hypercholesterolemia" @default.
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- W4283072923 doi "https://doi.org/10.1016/j.amjcard.2022.05.002" @default.
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