In:
Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 128, No. 24 ( 2013-12-17), p. 2567-2576
Abstract:
Lipoprotein(a) (Lp(a)) hyperlipoproteinemia is a major risk factor for cardiovascular disease, which is not affected by treatment of other cardiovascular risk factors. This study sought to assess the effect of chronic lipoprotein apheresis (LA) on the incidence of cardiovascular events in patients with progressive cardiovascular disease receiving maximally tolerated lipid-lowering treatment. Methods and Results— In a prospective observational multicenter study, 170 patients were investigated who commenced LA because of Lp(a)-hyperlipoproteinemia and progressive cardiovascular disease. Patients were characterized regarding plasma lipid status, lipid-lowering drug treatment, and variants at the LPA gene locus. The incidence rates of cardiovascular events 2 years before (y-2 and y-1) and prospectively 2 years during LA treatment (y+1, y+2) were compared. The mean age of patients was 51 years at the first cardiovascular event and 57 years at the first LA. Before LA, mean low-density lipoprotein cholesterol and Lp(a) were 2.56±1.04 mmol·L −1 (99.0±40.1 mg·dL −1 ) and Lp(a) 3.74±1.63 µmol·L −1 (104.9±45.7 mg·dL −1 ), respectively. Mean annual rates for major adverse coronary events declined from 0.41 for 2 years before LA to 0.09 for 2 years during LA ( P 〈 0.0001). Event rates including all vascular beds declined from 0.61 to 0.16 ( P 〈 0.0001). Analysis of single years revealed increasing major adverse coronary event rates from 0.30 to 0.54 ( P =0.001) for y-2 to y-1 before LA, decline to 0.14 from y-1 to y+1 ( P 〈 0.0001) and to 0.05 from y+1 to y+2 ( P =0.014). Conclusions— In patients with Lp(a)-hyperlipoproteinemia, progressive cardiovascular disease, and maximally tolerated lipid-lowering medication, LA effectively lowered the incidence rate of cardiovascular events. Clinical Trial Registration— URL: https://drks-neu.uniklinik-freiburg.de . Unique identifier: DRKS00003119.
Type of Medium:
Online Resource
ISSN:
0009-7322
,
1524-4539
DOI:
10.1161/CIRCULATIONAHA.113.002432
Language:
English
Publisher:
Ovid Technologies (Wolters Kluwer Health)
Publication Date:
2013
detail.hit.zdb_id:
1466401-X
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