Low-Density Lipoprotein Cholesterol Level in Patients With Acute Myocardial Infarction Having Percutaneous Coronary Intervention (the Cholesterol Paradox)

The relation between low-density lipoprotein (LDL) cholesterol levels and clinical outcomes after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) has not been described. A total of 9,571 eligible patients (mean age 62.6 ± 12.5 years, 6,967 men) who underwe...

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Veröffentlicht in:The American journal of cardiology 2010-10, Vol.106 (8), p.1061-1068
Hauptverfasser: Cho, Kyung Hoon, MD, Jeong, Myung Ho, MD, PhD, Ahn, Youngkeun, MD, PhD, Kim, Young Jo, MD, PhD, Chae, Shung Chull, MD, PhD, Hong, Taek Jong, MD, PhD, Seong, In Whan, MD, PhD, Chae, Jei Keon, MD, PhD, Kim, Chong Jin, MD, PhD, Cho, Myeong Chan, MD, PhD, Seung, Ki Bae, MD, PhD, Park, Seung Jung, MD, PhD
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container_end_page 1068
container_issue 8
container_start_page 1061
container_title The American journal of cardiology
container_volume 106
creator Cho, Kyung Hoon, MD
Jeong, Myung Ho, MD, PhD
Ahn, Youngkeun, MD, PhD
Kim, Young Jo, MD, PhD
Chae, Shung Chull, MD, PhD
Hong, Taek Jong, MD, PhD
Seong, In Whan, MD, PhD
Chae, Jei Keon, MD, PhD
Kim, Chong Jin, MD, PhD
Cho, Myeong Chan, MD, PhD
Seung, Ki Bae, MD, PhD
Park, Seung Jung, MD, PhD
description The relation between low-density lipoprotein (LDL) cholesterol levels and clinical outcomes after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) has not been described. A total of 9,571 eligible patients (mean age 62.6 ± 12.5 years, 6,967 men) who underwent PCI with a final diagnosis of AMI from the Korea Acute Myocardial Infarction Registry (KAMIR) were divided into 5 groups according to LDL cholesterol level:
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A total of 9,571 eligible patients (mean age 62.6 ± 12.5 years, 6,967 men) who underwent PCI with a final diagnosis of AMI from the Korea Acute Myocardial Infarction Registry (KAMIR) were divided into 5 groups according to LDL cholesterol level: &lt;70, 70 to 99, 100 to 129, 130 to 159, and ≥160 mg/dl. Clinical outcomes in hospital and 1 and 12 months after PCI in patients with AMI were examined. Age and co-morbidities decreased as LDL cholesterol increased. Patients with higher LDL cholesterol levels had favorable hemodynamic status and laboratory findings. Lifesaving medications, including lipid-lowering drugs, were underused in patients with lower LDL cholesterol levels. Clinical outcomes in hospital and 1 and 12 months after PCI showed better results as LDL cholesterol increased, except for patients with LDL cholesterol levels ≥160 mg/dl. In a Cox proportional-hazards model, LDL cholesterol level was not an independent predictor of mortality at 12 months, after adjusting for clinical characteristics including demographics and biologic data. In conclusion, the cholesterol paradox in patients with AMI is related to confounding by baseline characteristics associated with survival. More intensive treatment including lipid-lowering therapy for AMI in patients with lower LDL cholesterol level may result in better clinical outcomes.</description><identifier>ISSN: 0002-9149</identifier><identifier>EISSN: 1879-1913</identifier><identifier>DOI: 10.1016/j.amjcard.2010.06.009</identifier><identifier>PMID: 20920639</identifier><identifier>CODEN: AJCDAG</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Aged ; Angioplasty ; Angioplasty, Balloon, Coronary - methods ; Biological and medical sciences ; Cardiology ; Cardiology. Vascular system ; Cardiovascular ; Cholesterol ; Cholesterol, LDL - blood ; Clinical outcomes ; Coronary Angiography ; Coronary heart disease ; Diseases of the cardiovascular system ; Electrocardiography ; Female ; Follow-Up Studies ; Heart ; Heart attacks ; Humans ; Korea - epidemiology ; Low density lipoprotein ; Male ; Medical sciences ; Middle Aged ; Myocardial Infarction - blood ; Myocardial Infarction - mortality ; Myocardial Infarction - therapy ; Myocarditis. Cardiomyopathies ; Patients ; Prognosis ; Prospective Studies ; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. 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A total of 9,571 eligible patients (mean age 62.6 ± 12.5 years, 6,967 men) who underwent PCI with a final diagnosis of AMI from the Korea Acute Myocardial Infarction Registry (KAMIR) were divided into 5 groups according to LDL cholesterol level: &lt;70, 70 to 99, 100 to 129, 130 to 159, and ≥160 mg/dl. Clinical outcomes in hospital and 1 and 12 months after PCI in patients with AMI were examined. Age and co-morbidities decreased as LDL cholesterol increased. Patients with higher LDL cholesterol levels had favorable hemodynamic status and laboratory findings. Lifesaving medications, including lipid-lowering drugs, were underused in patients with lower LDL cholesterol levels. Clinical outcomes in hospital and 1 and 12 months after PCI showed better results as LDL cholesterol increased, except for patients with LDL cholesterol levels ≥160 mg/dl. In a Cox proportional-hazards model, LDL cholesterol level was not an independent predictor of mortality at 12 months, after adjusting for clinical characteristics including demographics and biologic data. In conclusion, the cholesterol paradox in patients with AMI is related to confounding by baseline characteristics associated with survival. More intensive treatment including lipid-lowering therapy for AMI in patients with lower LDL cholesterol level may result in better clinical outcomes.</description><subject>Aged</subject><subject>Angioplasty</subject><subject>Angioplasty, Balloon, Coronary - methods</subject><subject>Biological and medical sciences</subject><subject>Cardiology</subject><subject>Cardiology. 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Vascular system</topic><topic>Cardiovascular</topic><topic>Cholesterol</topic><topic>Cholesterol, LDL - blood</topic><topic>Clinical outcomes</topic><topic>Coronary Angiography</topic><topic>Coronary heart disease</topic><topic>Diseases of the cardiovascular system</topic><topic>Electrocardiography</topic><topic>Female</topic><topic>Follow-Up Studies</topic><topic>Heart</topic><topic>Heart attacks</topic><topic>Humans</topic><topic>Korea - epidemiology</topic><topic>Low density lipoprotein</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Myocardial Infarction - blood</topic><topic>Myocardial Infarction - mortality</topic><topic>Myocardial Infarction - therapy</topic><topic>Myocarditis. Cardiomyopathies</topic><topic>Patients</topic><topic>Prognosis</topic><topic>Prospective Studies</topic><topic>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. 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A total of 9,571 eligible patients (mean age 62.6 ± 12.5 years, 6,967 men) who underwent PCI with a final diagnosis of AMI from the Korea Acute Myocardial Infarction Registry (KAMIR) were divided into 5 groups according to LDL cholesterol level: &lt;70, 70 to 99, 100 to 129, 130 to 159, and ≥160 mg/dl. Clinical outcomes in hospital and 1 and 12 months after PCI in patients with AMI were examined. Age and co-morbidities decreased as LDL cholesterol increased. Patients with higher LDL cholesterol levels had favorable hemodynamic status and laboratory findings. Lifesaving medications, including lipid-lowering drugs, were underused in patients with lower LDL cholesterol levels. Clinical outcomes in hospital and 1 and 12 months after PCI showed better results as LDL cholesterol increased, except for patients with LDL cholesterol levels ≥160 mg/dl. In a Cox proportional-hazards model, LDL cholesterol level was not an independent predictor of mortality at 12 months, after adjusting for clinical characteristics including demographics and biologic data. In conclusion, the cholesterol paradox in patients with AMI is related to confounding by baseline characteristics associated with survival. More intensive treatment including lipid-lowering therapy for AMI in patients with lower LDL cholesterol level may result in better clinical outcomes.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>20920639</pmid><doi>10.1016/j.amjcard.2010.06.009</doi><tpages>8</tpages></addata></record>
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subjects Aged
Angioplasty
Angioplasty, Balloon, Coronary - methods
Biological and medical sciences
Cardiology
Cardiology. Vascular system
Cardiovascular
Cholesterol
Cholesterol, LDL - blood
Clinical outcomes
Coronary Angiography
Coronary heart disease
Diseases of the cardiovascular system
Electrocardiography
Female
Follow-Up Studies
Heart
Heart attacks
Humans
Korea - epidemiology
Low density lipoprotein
Male
Medical sciences
Middle Aged
Myocardial Infarction - blood
Myocardial Infarction - mortality
Myocardial Infarction - therapy
Myocarditis. Cardiomyopathies
Patients
Prognosis
Prospective Studies
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Risk Factors
Survival analysis
Survival Rate - trends
Time Factors
title Low-Density Lipoprotein Cholesterol Level in Patients With Acute Myocardial Infarction Having Percutaneous Coronary Intervention (the Cholesterol Paradox)
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