8/7/20151 prevention of cardiovascular diseases: begin in childhood! ruth collins-nakai md, mba,...
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04/19/23 1
Prevention of Cardiovascular Diseases:
Begin in Childhood!Ruth Collins-NakaiMD, MBA, FRCPC, FACC
President
InterAmerican Society of Cardiology
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Outline
World status of CVDs
Argentinean status of CVDs
Prevention efficacy
Recommendations re risk factors
Role of CV specialist in prevention
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04/19/231999 WHF "Impending Global
Pandemic of CVDs4
World Status of CVD
Represents 30% of all deaths worldwide
(15 million deaths/year)
Leading cause of death and disability
CVD burden in developing countries
Risk factors worldwide
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% GDP spent on health
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04/19/23 http://cvdinfobase.ic.gc.ca 6
Population per Physician
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04/19/23 http://cvdinfobase.ic.gc.ca 7
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04/19/23 http://cvdinfobase.ic.gc.ca 8
Argentina CVD mortality: females
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Argentina CVD mortality: females
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04/19/23 http://cvdinfobase.ig.gc.ca 10
Argentina IHD mortality: males
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04/19/23 http://cvdinfobase.ic.gc.ca 11
Argentina Diabetes: females males
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Atherosclerosis: A Systemic Disease
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Prevention Facts Defined Risk Factors in adults associated
with accelerated atherosclerosis and CVD rates*
Atherosclerosis begins in childhood * * Extent of atherosclerosis in children
correlated with same risk factors as in adults * * *
*Strong JP et al JAMA 1999;281:727-735
* Berenson GS et al NEJM 1998;338:1650-1656
* * *Williams CL et al Circ. 2002;106:143-160
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0
20
40
60
80
%
Age (Years)
Aorta Coronary Arteries
2-15 16-20 21-25 26-39 2-1516-20 21-2526-39
p = 0.001 for trend toward increasing prevalence with age in aorta
and coronary arteries.
Early Appearance of Atherosclerosis:
Bogalusa Heart StudyPrevalence of Fibrous Plaque Lesions
0
20
40
60
80
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The Evidence physical activity associated with life
expectancy Direct association between obesity &
insulin resistance in children Direct association between obesity & lipid
levels in children Tracking: BMI>weight>skinfold
thicknesses>lipids>BP Clusters of multiple risk factors persist
strongly from child-to-adulthood
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Risk Factors for Atherosclerosis
Smoking Obesity High blood pressure Physical Inactivity High blood fat levels Diabetes Positive family history Other (ethnicity, anger)
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0
6
12
18
24
30
36
42
10-Year %
Probability
of Event
SBP 150-160 + + + + + +Cholesterol 6.2-6.8 - + + + + +HDL-C 0.8-0.9 - - + + + +Diabetes - - - + + +Cigarettes - - - - + +ECG-LVH - - - - - +
4 610
14
21
40
Effect of Multiple Risk Factors on Probability of CAD: Framingham Study
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Recommendations
Cardiovascular Health in Childhood (AHA Scientific Statement) Circ 2002;106:143-160 Circ 2002;107:1562-1566
Canadian Cardiovascular Society Consensus Conference on Prevention of CVD: The Role of the CV Specialist CJC 1999;15(supple.G)
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Smoking
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Tobacco
Complete cessation for those who
smoke
No exposure to environmental
tobacco smoke
No new initiation of cigarette
smoking or tobacco use
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Obesity Appropriate body weight (BMI for age)
(www.cdc.gov/growthcharts./)
Overall healthy eating pattern (limit salt,
fat, calories & sugar > 2 years age)
Balance “Energy in = energy out” for
weight
Begin treatment before adolescence
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20
15
10
5
0
6-11 yrs 12-19 yrs
1963-70 1971-74 1976-80 1988-94 1999
Trends in prevalence of overweight in USA(CDC – NHANES)
%
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Physical Activity
Physical activity every day (60
minutes per day for children)
Reduce/limit sedentary time (e.g..
TV maximum 2 hours per day)
May add resistance training to
aerobic activity in adolescents
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Lipids & Lipoproteins
Total cholesterol <4.4 mmol/L recommended
(USA>170mg/dL borderline; >200 mg/dL is )
LDL-C <2.85 mmol/L recommended
(USA<110mg/dL)
Triglycerides <1.5 mmol/L recommended
(USA <150 mg/dL)
HDL-C >35 mg/dL recommended
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CAD Death Rate per 10,000 Person-years
100+ 90-99
80-89
75-79
70-74
<70<120
120-139140-159
160+
Diastolic BP (mmHg)Systolic BP (mmHg)
20.610.3 11.8 8.8 8.5 9.2
11.8
12.6
12.8
13.9
24.6
25.3
25.2
24.9
16.9
23.8
31.0
25.8
34.7
43.8
38.1
80.6
37.4
48.3
Effect of SBP and DBP onAge-Adjusted CAD Mortality: MRFIT
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Blood Pressure
Systolic & diastolic BP>90th% for age,
sex and height is abnormal
(www.nhlbi.nih.gov/health/prof/heart/hbp/
hbp_ped.htm.)
>130/~80 is almost always pathological
in youth.
Use proven effective therapies
recommended for adults (CPGs)
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Diabetes Adequate nutrition (neither over
nor undernutrition) of pregnant women: Barker hypothesis
Limit sugar intake Maintain normal weight for age &
height For type 1 diabetics, ongoing
strict control (Hgb A1c)
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Ethnicity (esp. South Asian / aboriginal/black/Hispanic)
Low socioeconomic level
Social isolation
Depression
Pregnancy (HTN and gestnl diabetes)
“Emerging” risk factors
Other Risk Factors
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Childhood Abuse Adverse childhood experiences
(ACEs) 1.7x risk with emotional abuse 1.7x risk with crime in
household 1.3x risk with emotional neglect 1.3x risk with substance abuse Depressed affect OR 2.1 Anger: OR 2.5 7 or > ACEs risk almost 4x
Dong M et al CIRC 110; 2004
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--
Specialized medicine
First line medicine
Clinical Application of the Concept of Risk
Vascular, unstable
Asymptomatic
VascularDiabetic
Asymptomatic + risk factors
Primary prevention Secondary prevention
Diabetic + risk factors
Pluri-vascular
Lo
wH
igh
Hyp
er
Ris
k
Symptomatic
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Economic Burden of Coronary Artery Disease (CAD)
US (2000) $118.2 billion USD
Canada (1993) $19.6 billion CDN (15.2% of total economic burden of illness)
UK (1996) £10 billion
Germany (1996) 112 billion DM
Taiwan (1991) 9.0-11.9 billion new Taiwan $
Sweden (1994) 276 billion SEK
Direct and Indirect Cost of CAD Country (not adjusted for inflation)
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BMI
<75%ile 75-85%ile85-95%ile
at risk for ow >95%ile
overweight
Reaffirm healthy Habits;
f/u annually
Assess family history,
food habits,activity
Council to change food
intake;increase physical activity
Council to change food
intake;increase physical activity
Assess RF;If >1 RF, treat as >95%ile
Assess RF;Treat RFs;
Involve family
Nesbitt SD et alEthnicity & Disease 14;2004
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Role of Cardiovascular Specialist
Education of other health care
personnel
Advocate for heart healthy public
policies
Treat individual patients, including
children with significant risk factors.
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Conclusions
The burden of global CVD is increasing
The burden of risk factors is rising alarmingly in children and youth
Cardiovascular specialists have an obligation to lead in prevention
Educate, Advocate, Treat
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Gracias!
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Questions for readers of Prevention of Cardiovascular Diseases: Begin in Childhood! lecture by Ruth Collins-Nakai(developed by Supercourse Team)
• At what age do we begin to see fatty streaks associated with atherosclerosis?•What is the difference in risk from the lowest to highest risk factors•Why should we intervene with children to prevent MIs 60 years later?