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Morteza Naghavi, M.D. Society for Heart Attack Prevention and Eradication (SHAPE) Houston, TX Screening for Early Detection and Prevention of Heart Attack March 2010 American College of Cardiology
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> 15 Million Heart Attacks Each Year Source: World Heart Federation The AEHA 2005 VP Summit
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Why does screening for the prevention of heart attacks need to look beyond cholesterol and traditional risk factors?
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Because traditional risk factor based screening fails miserably in identifying the Vulnerable Patient.
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Of 136,905 patients hospitalized with CAD, 77% had normal LDL levels below 130 mg/dl Modified from Sachdeva et al. AHJ, Vol 157, 111-117 Jan 2009 Chapter 1: Preventive Cardiology; the SHAPE of the Future in Naghavi et al. Asymptomatic Atherosclerosis: Pathophysiology, Detection and Treatment. Humana Press, 2009
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Modified from Sachdeva et al. AHJ, Vol 157, 111-117 Jan 2009 Chapter 1: Preventive Cardiology; the SHAPE of the Future in Naghavi et al. Asymptomatic Atherosclerosis: Pathophysiology, Detection and Treatment. Humana Press, 2009 Of 136,905 patients hospitalized with CAD, 45.4% had normal HDL levels above 40 mg/dl
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Of 136,905 patients hospitalized with CAD, 61.8% had normal triglyceride levels below 150 mg/dl Modified from Sachdeva et al. AHJ, Vol 157, 111-117 Jan 2009 Chapter 1: Preventive Cardiology; the SHAPE of the Future in Naghavi et al. Asymptomatic Atherosclerosis: Pathophysiology, Detection and Treatment. Humana Press, 2009
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In >50% of victims, the first symptom of asymptomatic atherosclerosis is sudden cardiac death or acute MI.
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Men Women 010203040506070 Patients Diagnosed with CHD (%) Murabito et al Circulation 1993 Sudden Cardiac Death or Acute MI as Initial Presentation of CHD 62% 42%
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Status Quo Unacceptable CONCLUSION:
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Two Major Problems Exist in Cardiology Today: 1- Inaccurate Individualized Risk Assessment 2- Inadequate Monitoring of Response to Therapy In summary:
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Sir Winston Churchill, 91 Sir Winston Churchill, 91 Jim Fixx, 53 Jim Fixx, 53 Who Has More Cardiovascular Risk Factors?
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CVD Genotyping? Naghavi et al. Circulation. 2003;108:1664 ~50% Apparently Healthy People (New) ~50% CHD Patients (Recurrent)
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CVD Genotyping? Naghavi et al. Circulation. 2003;108:1664 ~50% Apparently Healthy People (New) ~50% CHD Patients (Recurrent)
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Naghavi et. al. Circulation Journal Vol108, No14; October 7, 2003 The Vulnerable Patient Consensus Statement Preceding the SHAPE Initiative
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Naghavi et. al. Circulation Journal Vol108, No14; October 7, 2003 The Vulnerable Patient Consensus Statement Preceding the SHAPE Initiative
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First SHAPE Symposium - 2004
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SHAPE Task Force Meeting - 2004
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SHAPE Guidelines Published
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Existing Guidelines (Status Quo): Screen for Risk Factors of Atherosclerosis Treat Risk Factors of Atherosclerosis The SHAPE Guidelines: Screen for Atherosclerosis (the Disease) Regardless of Risk Factors Treat based on the Severity of the Disease and its Risk Factors SHAPE v.s. Status Quo
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1: No history of angina, heart attack, stroke, or peripheral arterial disease. 2: Population over age 75y is considered high risk and must receive therapy without testing for atherosclerosis. 3: Must not have any of the following: Chol>200 mg/dl, blood pressure >120/80 mmHg, diabetes, smoking, family history, metabolic syndrome. 4: Pending the development of standard practice guidelines. 5: High cholesterol, high blood pressure, diabetes, smoking, family history, metabolic syndrome. 6: For stroke prevention, follow existing guidelines.
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Some of the Members of the SHAPE Task Force (left to right): Drs Budoff, Falk, Rumberger, Naghavi, Fayad, Hecht, and Berman
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Current National Preventive Care Reimbursement Policies Do Not Match the Burden of the Problem Inadequate & Disproportionate
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Magnitude of the Burden: Causes of Death in the United States Deaths (thousands) CHDCancerAccidentsHIV/AIDS 959.2 544.7 93.8 32.7 American Heart Association. Heart and Stroke Statistical Update.
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Why do we screen for asymptomatic cancers but ignore asymptomatic CVD?
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<$100 for # 1 killer >$1000 for # 2 Killer
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TEXAS HEART ATTACK PREVENTIVE SCREENING LAW Sec.A1376.003.AAMINIMUM COVERAGE REQUIRED. (a) A health benefit plan that provides coverage for screening medical procedures must provide the minimum coverage required by this section to each covered individual: (1)who is: (A)a male older than 45 years of age and younger than 76 years of age; or (B)a female older than 55 years of age and younger than 76 years of age; and (2)who: (A)is diabetic; or (B)has a risk of developing coronary heart disease, based on a score derived using the Framingham Heart Study coronary prediction algorithm, that is intermediate or higher. (b)the minimum coverage required to be provided under this section is coverage of up to $200 for one of the following:
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TEXAS HEART ATTACK PREVENTIVE SCREENING LAW noninvasive screening tests for atherosclerosis and abnormal artery structure and function every five years, performed by a laboratory that is certified by a national organization recognized by the commissioner by rule for the purposes of this section: (1) computed tomography (CT) scanning measuring coronary artery calcification; Or (2) ultrasonography measuring carotid intima-media thickness and plaque.
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Number (per year) Estimated Impact of SHAPE (Sensitivity Analysis Range) Estimated Change in Cost CVD Deaths910,600↓10% (5%-25%) ($1.2 b) MI (prevalence)7,200,000↓ 25% (5%-35%) ($18.0 b) Chest Pain Symptoms (ER visits)6,500,000↓ 5% (2.5%-25%) ($4.1 b) Hospital Discharge for Primary Diagnosis of CVD6,373,000↑ 10% (5%-25%) $3.8 b Hospital Discharge for Primary Diagnosis of CHD970,000↓ 10% (5%-25%) ($9.9 b) Cholesterol Lowering Therapy↑ 50 % (50%-65%) 8.00 b CV Imaging8,700,000↑ 10% (5%-25%) $358 m Angiography6,800,000↑ 15% - CTA (2.5%-25%) $600 m PCI (percutaneous coronary interventions per year)657,000↓ 10% (5%-50%) ($580 m) CABS (coronary artery bypass surgeries per year)515,000↓ 5% (2.5%-50%) ($672 m) Total Δ in Cost ($21.5 b) Cost Effectiveness of the SHAPE Guidelines
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Comparing to the treatment of a heart attack, its prevention is woefully under-invested.
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poly pills
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The ultimate preventive strategies must be directed towards the different levels of primary prevention (i.e. prevention of atherosclerosis risk factors in the entire population, mass treatment of atherosclerosis in a smaller at-risk population, and preemptive prevention of events in further smaller pre-symptomatic population. The 1 st SHAPE guideline is directed at the early detection and treatment of subclinical atherosclerosis and fills the gap in the existing guidelines.
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WWW.SHAPESOCIETY.ORG
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The 1 st SHAPE Textbook Released at the ACC 2010
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The 1 st SHAPE –a-thon with onsite cardiovascular screen held in conjunction with annual scientific conference of American College of Cardiology 2005
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The 1st Golf Fore Heart championed by a SHAPE volunteer in Baltimore - 2007
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