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SECONDARY PREVENTIONS Jaimon Stucki MS-1 PSCOM
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Blood Draw
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Centrifuge
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Lipid Profile Triglycerides LDL Cholesterol HDL Cholesterol Total Cholesterol Chol/HDL
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Where does cholesterol come from?
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Deep Fried Twinkie
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Cholesterol Levels Are Affected by Multiple Organ Systems Net Cholesterol Balance in Humans LDL Receptors Cholesterol Synthesis LDL and Other Receptors IDL-C = intermediate-density lipoprotein cholesterol; VLDL-C = very low-density lipoprotein cholesterol. Turley SD et al. Prev Cardiol. 2003;6:29–33, 64; Dietschy JM. Am J Clin Nutr. 1997;65(suppl): 1581S–1589S, adapted with permission by the American Journal of Clinical Nutrition. © Am J Clin Nutr. American Society for Clinical Nutrition. Cholesterol Synthesis Synthesized Cholesterol ≈50% of Intestinal Cholesterol Is Absorbed Transport via HDL-C and LDL-C (≈75%) Chylomicron Transport Biliary Cholesterol Transport Fecal Sterols Dietary Cholesterol (≈25%) Extrahepatic Organs LiverIntestine LDL-C IDL-CVLDL-C
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Fenofibrate (Tricor) Lower serum Triglycerides Niaspan Increase HDL Flushing/Slow-Release FibratesNiacin
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Statins HMG CoA Reductase Inhibitors Atorvastatin,Lovastatin, Rosuvastatin, Simvastatin (Zocor) Decrease LDL levels
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Cholesterol Levels Are Affected by Multiple Organ Systems Net Cholesterol Balance in Humans LDL Receptors Cholesterol Synthesis LDL and Other Receptors IDL-C = intermediate-density lipoprotein cholesterol; VLDL-C = very low-density lipoprotein cholesterol. Turley SD et al. Prev Cardiol. 2003;6:29–33, 64; Dietschy JM. Am J Clin Nutr. 1997;65(suppl): 1581S–1589S, adapted with permission by the American Journal of Clinical Nutrition. © Am J Clin Nutr. American Society for Clinical Nutrition. Cholesterol Synthesis Synthesized Cholesterol ≈50% of Intestinal Cholesterol Is Absorbed Transport via HDL-C and LDL-C (≈75%) Chylomicron Transport Biliary Cholesterol Transport Fecal Sterols Dietary Cholesterol (≈25%) Extrahepatic Organs LiverIntestine LDL-C IDL-CVLDL-C
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The Statin Decade: For LDL: “Lower is Better” R² = 0.9029 p < 0.0001 LDL Cholesterol (mg/dl) CHD Events (%) Adapted and Updated from O’Keefe, J. et al., J Am Coll Cardiol 2004;43:2142-6. 30 50 70 90 110 130 150 170 190 210 4S CARE LIPID HPS PROVE IT –TIMI 22 TNT
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Cholesterol Levels Are Affected by Multiple Organ Systems Net Cholesterol Balance in Humans LDL Receptors Cholesterol Synthesis LDL and Other Receptors IDL-C = intermediate-density lipoprotein cholesterol; VLDL-C = very low-density lipoprotein cholesterol. Turley SD et al. Prev Cardiol. 2003;6:29–33, 64; Dietschy JM. Am J Clin Nutr. 1997;65(suppl): 1581S–1589S, adapted with permission by the American Journal of Clinical Nutrition. © Am J Clin Nutr. American Society for Clinical Nutrition. Cholesterol Synthesis Synthesized Cholesterol ≈50% of Intestinal Cholesterol Is Absorbed Transport via HDL-C and LDL-C (≈75%) Chylomicron Transport Biliary Cholesterol Transport Fecal Sterols Dietary Cholesterol (≈25%) Extrahepatic Organs LiverIntestine LDL-C IDL-CVLDL-C
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Ezetimibe l Blocks a specific receptor in small intestine: reduces absorption of dietary and biliary cholesterol by 50% l Well tolerated
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Clinical Studies with Ezetimibe Monotherapy *P 0.01 vs placebo. Pooled Results From 2 Multicenter, Double-Blind, Placebo-Controlled, 12-Week Studies in 1,719 Patients With Primary Hypercholesterolemia Source: Ezetimibe package insert
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The Statin Decade: For LDL: “Lower is Better” R² = 0.9029 p < 0.0001 LDL Cholesterol (mg/dl) CHD Events (%) Adapted and Updated from O’Keefe, J. et al., J Am Coll Cardiol 2004;43:2142-6. 30 50 70 90 110 130 150 170 190 210 4S CARE LIPID HPS PROVE IT –TIMI 22 TNT
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Simva + EZ Vytorin
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The Statin Decade: For LDL: “Lower is Better” R² = 0.9029 p < 0.0001 LDL Cholesterol (mg/dl) CHD Events (%) Adapted and Updated from O’Keefe, J. et al., J Am Coll Cardiol 2004;43:2142-6. 30 50 70 90 110 130 150 170 190 210 4S CARE LIPID HPS PROVE IT –TIMI 22 IMPROVE IT 66 52 TNT
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“Is (Even) Lower (Even) Better ?” Can Eze/Simva lower LDL to a greater degree than standard treatment (Simva 40 mg) and by doing so reduce major cardiovascular events?
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Eze/Simva Surrogate and Clinical Outcome ProgramTrialPopulationEndpointTreatment ENHANCEHeFH (n = 720) Carotid IMT Eze/Simva 10/80 vs Simva 80 IMPROVE-ITACS (n = 10,000) MACE Eze/Simva 10/40 vs Simva 40
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Drug Cost Fenofibrate 200mg$69/30 day Lovastatin 40mg$36/30 day Atorvastatin 20mg (Lipitor)$120/30 day Simvastatin 40mg (Generic)$28/30 day Ezetimibe 10mg (Zetia)$100/30 day Vytorin 40/10mg$108/30 day
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