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9/25/2014. قلب و عروق. 1. Central obesity By : Dr. H – Aghajani Interventional cardiologist NCDC Director Ministry of Health and Education. Approximately 2/3 billion adult : overweight More than 700 million adult : obese. WHO predict by 2015:.
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9/25/2014 قلب و عروق 1
Central obesity By : Dr. H – Aghajani Interventional cardiologist NCDC Director Ministry of Health and Education
Approximately 2/3 billion adult : overweight More than 700 million adult : obese WHO predict by 2015:
An estimated 300 million people around the world are obese as defined by a body mass index (BMI) of 30 or more At least 155 million school-age children worldwide are overweight or obese
In the world: • By 2015, an estimated 20 million people will die from cardiovascular disease every year, mainly from heart attacks and strokes (WHO) • Despite the decline in the number of deaths in the developed world, CVD is still pre-eminent as a public health issue. EPIDEMIOLOGY
IHD is responsible for all deaths in 2004 and is estimated to be 14.2% in 2030 In the developing world the prevalence of the risk factors for CVD is increasing
17.5 million people died from cardiovascular disease in 2005, representing around 30 % of all global deaths 7.6 million deaths were due to heart attacks and 5.7 million were due to stroke 80% of these deaths occurred in low and middle income countries In EMRO: CVD is 31% of all Death causes
In Iran: Chronic NCDs are 79% of death causes and 85%of diseases burden CVD is the first cause of death(46%) and IHD is the main causes
Food Environment – Influencing Factors(Causal Web of influence on the prevalence of obesity – Harris, University of North Carolina) Macro physical, cultural, economic and social environment Household/individual/social/ demographic/economic Dietary intakes Energy expenditures Obesity Psychological/behavioural Clinical Biological (genetic, neurochemical, etc) Emerging adulthood Young adulthood Older adulthood Childhood Adolescence
Cardiovascular diseaseRiSK FACTORS • Sedentary lifestyle • Diabetes • Hypertension • Obesity • Stress • Hostile personality • Cigarette smoking • Anabolic steroids • Amphetamines • Oral contraceptives • Diet high in saturated fats • Heredity
Excessivefood intake Physicalinactivity Smoking Stress Obesity Atherosclerosis Atherosclerosis Hypertension Diabetes Dyslipidaemia Arterial & venous thrombosis/ cardiac & cerebral events Arrhythmia Chronic heart failure Life style is a Driver of CVD Life style intervention Risk factor modification
Unmet clinical needs to address in the next decade HDL-C TNF IL-6 Insulin AbdominalObesity Glu TG PAI-1 Major Unmet Clinical Need Novel Risk Factors Classical Risk Factors Metabolic syndrome LDL-C BP Smoking T2DM CARDIOVASCULAR DISEASE
Properties of key adipokines IAA: intra-abdominal adiposity Marette 2002
Health threat from abdominal obesity is largely due to intra-abdominal adiposity Increased Cardiometabolic Risk Abdominal Obesity Dyslipidemia Hypertension Glucose Intolerance Insulin Resistance Intra-Abdominal Adiposity Adapted from Eckel et al 2005
Why is abdominal obesity harmful? Abdominal obesity is often associated with other CV risk factors is an independent CV risk factor Adipocytes are metabolically active endocrine organs, not simply inert fat storage Wajchenberg 2000
Multiple cardiovascular risk factors drive adverse clinical outcomes Increased Cardiometabolic Risk Abdominal obesity Dyslipidaemia Hypertension Glucose intolerance Insulin resistance Metabolic Syndrome
Direct observations show that abdominal (visceral) obesity is more closely associated to NIDDM than CVD, while an increased WHR without obesity may be more closely linked to CVD than NIDDM. Ann Med. 1992 Feb;24(1):15-8.
For a 1 cm increase in WC, the relative risk (RR) of a CVD event increased by 2% (95% CI: 1-3%) overall after adjusting for age, cohort year, or treatment. For a 0.01 U increase in WHR, the RR increased by 5% (95% CI: 4-7%). These results were consistent in men and women. Eur Heart J. 2007 Apr;28(7):850-6. Epub
Abdominal obesity andincreased risk of CHD Waist circumference was independently associated with increased age-adjusted risk of CHD, even after adjusting for BMI and other CV risk factors 3.0 2.44 2.31 p for trend = 0.007 2.5 2.06 2.0 Relative risk 1.5 1.27 1.0 0.5 0.0 <69.8 69.8-<74.2 74.2-<79.2 79.2-<86.3 86.3-<139.7 Quintiles of waist circumference (cm) Rexrode et al 1998
Abdominal obesity and increased risk of cardiovascular events Men Women Tertile 1 <95 <87 Waistcirc. (cm): Tertile 2 95–103 87–98 Tertile 3 >103 >98 The HOPE Study 1.4 1.35 1.29 1.27 1.17 1.2 1.16 1.14 Adjusted relative risk 1 1 1 1 0.8 CVD death MI All-cause deaths Adjusted for BMI, age, smoking, sex, CVD disease, DM, HDL-C, total-C Dagenais et al 2005
Unmet clinical need associated with abdominal obesity CV risk factors in a typical patient with abdominal obesity Patients with abdominal obesity (high waist circumference) often present with one or more additional CV risk factors
Abdominal obesity increases the risk of developing type 2 diabetes 24 20 16 Relative risk 12 8 4 0 <71 71–75.9 76–81 81.1–86 86.1–91 91.1–96.3 >96.3 Waist circumference (cm) Carey et al 1997
High waist circumference is associated with multiple cardio vascular risk factors US population age >20 years 30 20 Prevalence of high waistcircumferenceassociated with (%) 10 0 LowHDL-Ca HighTGb HighFPGc HighBPd >2 riskfactorse a<40 mg/dL (men) or <50 mg/dL (women); b>150 mg/dL; c>110 mg/dL; d>130/85 mmHg; eNCEP/ATP III metabolic syndrome NHANES 1999–2000 cohort; data on file
Prevalence pattern of obesity in iran-2007 Female Male
Prevalence pattern of Overweight & obesity in iran-2007 Male Female
Waist circumference (f>88,m>102), NATIONAL SURVEY 2007- IRAN
Relationship between Waist circumference & Bp≥140/90 mmHg&FBS ≥126 mg/dl, Iran-2007 RR
Obesity and Cancer Obesity is associated with the following types of cancer: colon breast (postmenopausal) endometrium (the lining of the uterus) kidney gallbladder pancreas esophagus National Cancer Institute
In 2002, an estimated 41,000 new cases of cancer in the United States were due to obesity. About 3.2 percent of all new cancers are linked to obesity (1). 14% of deaths from cancer in men & 20% of deaths in women were due to overweight and obesity(2). Obesity and Cancer 1. Polednak AP. Trends in incidence rates for obesity-associated cancers in the U.S. Cancer Detection and Prevention 2003; 27(6):415–421. 2. Calle EE, Rodriguez C, Walker-Thurmond K, Thun MJ. Overweight, obesity, and mortality from cancer in a prospectively studied cohort of U.S. adults. New England Journal of Medicine 2003; 348(17):1625–1638.
Obesity and physical inactivity may account for 25%-30% of cancer of the colon, breast (postmenopausal), endometrial, kidney, and esophagus Preventing weight gain can reduce the risk of many cancers. Healthy eating and physical activity early in life can prevent overweight and obesity. Obesity and Cancer National Cancer Institute
Intervention Sessions address: • Parents as role models of eating and exercise behavior • Nutrition: Moderating Portion Sizes • Fruits and Vegetables • Family Meals • Physical Activity
Session Topics (continued) • The Feeding Relationship • Mindful Eating • Resisting Media Influences • Healthy Body Image and Dealing with Teasing
Early Intervention • Adult interventions have had poor outcomes • Treating childhood overweight is an important strategy for the prevention of adult obesity.
Adolescent Intervention • Physical Activity Intervention • monitored, structured physical activity session one day each week • two additional days of physical activity at YMCA • Behavioral Intervention • intake behavioral specialist • bi-weekly, ongoing, structured, same gender groups • homework is assigned and goal monitoring t • Nutrition Intervention • 30 minute twice-monthly meetings with the dietitian
A New Approach Our intervention will incorporate an intensive parental intervention within an established adolescent program (TEENS Program).