ArticleLipids in health and disease2025
Distribution of lipoprotein (a) levels in patients with lower extremity artery disease and their impact on amputation and survival: a retrospective study.
Article in Lipids in health and disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundElevated lipoprotein (a) (Lp(a)) is an independent risk factor for lower extremity artery disease (LEAD) with equivocal effect on amputation and mortality. Results regarding aggressive lipid-lowering therapies (LLT) are missing. We examined LEAD patients with Lp(a) measurement and the impact of intensive LLT on amputation and survival.
methodsBaseline characteristics of 263 LEAD patients with Lp(a) measurement treated in a tertiary hospital from 01/2017 until 01/2022 were recorded. Patients were categorized into three groups according to their Lp(a) values (< 30 mg/dL, 30-90 mg/dL and > 90 mg/dL). Lipid values and LLT were recorded at baseline and during follow-up (median 750 days). Peripheral endovascular revascularizations (EVR), amputations and death during follow-up were analysed.
resultsOf 263 patients, 75% were male, mean age was 67 ± 10 years. Elevated Lp(a) values ≥ 30 mg/dL were found in 32%, 16% had values > 90 mg/dL. Baseline low-density lipoprotein cholesterol (LDL-C) was 89 ± 38 mg/dL, decreasing to 61 ± 30 mg/dL at follow-up, with no difference between Lp(a) groups (63 ± 32 mg/dL vs. 52 ± 23 mg/dL vs. 60 ± 25 mg/dL, p = 0.273). Statin dose was intensified more frequently in those with elevated Lp(a) (16% vs. 35% vs. 33%, p = 0.005), who also received significantly more often ezetimibe (50% vs. 58% vs. 73%, p = 0.028) and proprotein convertase subtilisin/kexin type 9 inhibitors (2% vs. 3% vs. 8%, p = 0.043). No difference was seen regarding EVR (91% vs. 95% vs. 90%, p = 0.729), amputations (4% vs. 7% vs. 0%, p = 0.245) and death (8% vs. 5% vs. 3%, p = 0.436).
conclusionsAggressive LLT in high-risk LEAD patients with elevated Lp(a) levels enabled LDL-C target achievement in a majority by combination of established lipid-lowering agents. An increase in EVR, amputation or death could not be observed in patients with high Lp(a) levels.
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