Everipedia Logo
Everipedia is now IQ.wiki - Join the IQ Brainlist and our Discord for early access to editing on the new platform and to participate in the beta testing.
Cardiovascular disease

Cardiovascular disease

Cardiovascular disease (CVD) is a class of diseases that involve the heart or blood vessels.[2] CVD includes coronary artery diseases (CAD) such as angina and myocardial infarction (commonly known as a heart attack).[2] Other CVDs include stroke, heart failure, hypertensive heart disease, rheumatic heart disease, cardiomyopathy, abnormal heart rhythms, congenital heart disease, valvular heart disease, carditis, aortic aneurysms, peripheral artery disease, thromboembolic disease, and venous thrombosis.[2][3]

The underlying mechanisms vary depending on the disease.[2] Coronary artery disease, stroke, and peripheral artery disease involve atherosclerosis.[2] This may be caused by high blood pressure, smoking, diabetes mellitus, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol consumption, among others.[2] High blood pressure is estimated to account for approximately 13% of CVD deaths, while tobacco accounts for 9%, diabetes 6%, lack of exercise 6% and obesity 5%.[2] Rheumatic heart disease may follow untreated strep throat.[2]

It is estimated that up to 90% of CVD may be preventable.[5][6] Prevention of CVD involves improving risk factors through: healthy eating, exercise, avoidance of tobacco smoke and limiting alcohol intake.[2] Treating risk factors, such as high blood pressure, blood lipids and diabetes is also beneficial.[2] Treating people who have strep throat with antibiotics can decrease the risk of rheumatic heart disease.[7] The use of aspirin in people, who are otherwise healthy, is of unclear benefit.[8][9]

Cardiovascular diseases are the leading cause of death globally.[2] This is true in all areas of the world except Africa.[2] Together CVD resulted in 17.9 million deaths (32.1%) in 2015, up from 12.3 million (25.8%) in 1990.[4][3] Deaths, at a given age, from CVD are more common and have been increasing in much of the developing world, while rates have declined in most of the developed world since the 1970s.[10][11] Coronary artery disease and stroke account for 80% of CVD deaths in males and 75% of CVD deaths in females.[2] Most cardiovascular disease affects older adults. In the United States 11% of people between 20 and 40 have CVD, while 37% between 40 and 60, 71% of people between 60 and 80, and 85% of people over 80 have CVD.[1] The average age of death from coronary artery disease in the developed world is around 80 while it is around 68 in the developing world.[10] Diagnosis of disease typically occurs seven to ten years earlier in men as compared to women.[12]

Cardiovascular disease
Micrographof aheartwithfibrosis(yellow) andamyloidosis(brown).Movat's stain.
Usual onsetOlder adults[1]
TypesCoronary artery diseases,stroke,heart failure,hypertensive heart disease,rheumatic heart disease,cardiomyopathy[2][3]
PreventionHealthy eating, exercise, avoiding tobacco smoke, limited alcohol intake[2]
TreatmentTreatinghigh blood pressure,high blood lipids,diabetes[2]
Deaths17.9 million / 32% (2015)[4]


There are many cardiovascular diseases involving the blood vessels.

They are known as vascular diseases.

  • Coronary artery disease (also known as coronary heart disease and ischemic heart disease)

  • Peripheral arterial disease – disease of blood vessels that supply blood to the arms and legs

  • Cerebrovascular disease – disease of blood vessels that supply blood to the brain (includes stroke)

  • Renal artery stenosis

  • Aortic aneurysm

There are also many cardiovascular diseases that involve the heart.

  • Cardiomyopathy – diseases of cardiac muscle

  • Hypertensive heart disease – diseases of the heart secondary to high blood pressure or hypertension

  • Heart failure - a clinical syndrome caused by the inability of the heart to supply sufficient blood to the tissues to meet their metabolic requirements

  • Pulmonary heart disease – a failure at the right side of the heart with respiratory system involvement

  • Cardiac dysrhythmias – abnormalities of heart rhythm

  • Inflammatory heart disease Endocarditis – inflammation of the inner layer of the heart, the endocardium. The structures most commonly involved are the heart valves. Inflammatory cardiomegaly Myocarditis – inflammation of the myocardium, the muscular part of the heart, caused most often by viral infection and less often by bacterial infections, certain medications, toxins, and autoimmune disorders. It is characterized in part by infiltration of the heart by lymphocyte and monocyte types of white blood cells. Eosinophilic myocarditis - inflammation of the myocardium caused by pathologically activated eosinophilic white blood cells. This disorder differs from myocarditis in its causes and treatments.

  • Valvular heart disease

  • Congenital heart disease – heart structure malformations existing at birth

  • Rheumatic heart disease – heart muscles and valves damage due to rheumatic fever caused by Streptococcus pyogenes a group A streptococcal infection.

Risk factors

There are many risk factors for heart diseases: age, sex, tobacco use, physical inactivity, excessive alcohol consumption, unhealthy diet, obesity, genetic predisposition and family history of cardiovascular disease, raised blood pressure (hypertension), raised blood sugar (diabetes mellitus), raised blood cholesterol (hyperlipidemia), undiagnosed celiac disease, psychosocial factors, poverty and low educational status, and air pollution.[14][15][16][17][18] While the individual contribution of each risk factor varies between different communities or ethnic groups the overall contribution of these risk factors is very consistent.[19] Some of these risk factors, such as age, sex or family history/genetic predisposition, are immutable; however, many important cardiovascular risk factors are modifiable by lifestyle change, social change, drug treatment (for example prevention of hypertension, hyperlipidemia, and diabetes).[20] People with obesity are at increased risk of atherosclerosis of the coronary arteries.[21]


Genetic factors influence the development of cardiovascular disease in men who are less than 55 years-old and in women who are less than 65 years old.[20] Cardiovascular disease in a person's parents increases their risk by 3 fold.[22] Multiple single nucleotide polymorphisms (SNP) have been found to be associated with cardiovascular disease in genetic association studies,[23][24] but usually their individual influence is small, and genetic contributions to cardiovascular disease are poorly understood.[24]


Age is the most important risk factor in developing cardiovascular or heart diseases, with approximately a tripling of risk with each decade of life.[25] Coronary fatty streaks can begin to form in adolescence.[26] It is estimated that 82 percent of people who die of coronary heart disease are 65 and older.[27] Simultaneously, the risk of stroke doubles every decade after age 55.[28]

Multiple explanations are proposed to explain why age increases the risk of cardiovascular/heart diseases.

One of them relates to serum cholesterol level.[29] In most populations, the serum total cholesterol level increases as age increases.

In men, this increase levels off around age 45 to 50 years.

In women, the increase continues sharply until age 60 to 65 years.[29]

Aging is also associated with changes in the mechanical and structural properties of the vascular wall, which leads to the loss of arterial elasticity and reduced arterial compliance and may subsequently lead to coronary artery disease.[30]


Men are at greater risk of heart disease than pre-menopausal women.[25][31] Once past menopause, it has been argued that a woman's risk is similar to a man's[31] although more recent data from the WHO and UN disputes this.[25] If a female has diabetes, she is more likely to develop heart disease than a male with diabetes.[32]

Coronary heart diseases are 2 to 5 times more common among middle-aged men than women.[29] In a study done by the World Health Organization, sex contributes to approximately 40% of the variation in sex ratios of coronary heart disease mortality.[33] Another study reports similar results finding that sex differences explains nearly half the risk associated with cardiovascular diseases[29] One of the proposed explanations for sex differences in cardiovascular diseases is hormonal difference.[29] Among women, estrogen is the predominant sex hormone. Estrogen may have protective effects on glucose metabolism and hemostatic system, and may have direct effect in improving endothelial cell function.[29] The production of estrogen decreases after menopause, and this may change the female lipid metabolism toward a more atherogenic form by decreasing the HDL cholesterol level while increasing LDL and total cholesterol levels.[29]

Among men and women, there are differences in body weight, height, body fat distribution, heart rate, stroke volume, and arterial compliance.[30] In the very elderly, age-related large artery pulsatility and stiffness is more pronounced among women than men.[30] This may be caused by the women's smaller body size and arterial dimensions which are independent of menopause.[30]


Cigarettes are the major form of smoked tobacco.[2] Risks to health from tobacco use result not only from direct consumption of tobacco, but also from exposure to second-hand smoke.[2] Approximately 10% of cardiovascular disease is attributed to smoking;[2] however, people who quit smoking by age 30 have almost as low a risk of death as never smokers.[34]

Physical inactivity

Insufficient physical activity (defined as less than 5 x 30 minutes of moderate activity per week, or less than 3 x 20 minutes of vigorous activity per week) is currently the fourth leading risk factor for mortality worldwide.[2] In 2008, 31.3% of adults aged 15 or older (28.2% men and 34.4% women) were insufficiently physically active.[2] The risk of ischemic heart disease and diabetes mellitus is reduced by almost a third in adults who participate in 150 minutes of moderate physical activity each week (or equivalent).[35] In addition, physical activity assists weight loss and improves blood glucose control, blood pressure, lipid profile and insulin sensitivity.

These effects may, at least in part, explain its cardiovascular benefits.[2]


High dietary intakes of saturated fat, trans-fats and salt, and low intake of fruits, vegetables and fish are linked to cardiovascular risk, although whether all these associations are a cause is disputed.

The World Health Organization attributes approximately 1.7 million deaths worldwide to low fruit and vegetable consumption.[2] The amount of dietary salt consumed is also an important determinant of blood pressure levels and overall cardiovascular risk.[2] Frequent consumption of high-energy foods, such as processed foods that are high in fats and sugars, promotes obesity and may increase cardiovascular risk.[2] A Cochrane review found that replacing saturated fat with polyunsaturated fat (plant based oils) reduced cardiovascular disease risk. Cutting down on saturated fat reduced risk of cardiovascular disease by 17% including heart disease and stroke.[36]

High trans-fat intake has adverse effects on blood lipids and circulating inflammatory markers,[37] and elimination of trans-fat from diets has been widely advocated.[38][39] In 2018 the World Health Organization estimated that trans fats were the cause of more than half a million deaths per year.[39]

There is evidence that higher consumption of sugar is associated with higher blood pressure and unfavorable blood lipids,[40] and sugar intake also increases the risk of diabetes mellitus.[41] High consumption of processed meats is associated with an increased risk of cardiovascular disease, possibly in part due to increased dietary salt intake.[16]

The relationship between alcohol consumption and cardiovascular disease is complex, and may depend on the amount of alcohol consumed.

There is a direct relationship between high levels of drinking alcohol and cardiovascular disease.[2] Drinking at low levels without episodes of heavy drinking may be associated with a reduced risk of cardiovascular disease.[42] At the population level, the health risks of drinking alcohol exceed any potential benefits.[2][43]

Celiac disease

Untreated celiac disease can cause the development of many types of cardiovascular diseases, most of which improve or resolve with a gluten-free diet and intestinal healing. However, delays in recognition and diagnosis of celiac disease can cause irreversible heart damage.[18]


Sleep disorders such as sleep disordered breathing and insomnia, as well as particularly short duration of sleep or particularly long duration of sleep, have been found to be associated with a higher cardiometabolic risk.[44]

Socioeconomic disadvantage

Cardiovascular disease affects low- and middle-income countries even more than high-income countries.[45] There is relatively little information regarding social patterns of cardiovascular disease within low- and middle-income countries,[45] but within high-income countries low income and low educational status are consistently associated with greater risk of cardiovascular disease.[46] Policies that have resulted in increased socio-economic inequalities have been associated with greater subsequent socio-economic differences in cardiovascular disease[45] implying a cause and effect relationship. Psychosocial factors, environmental exposures, health behaviours, and health-care access and quality contribute to socio-economic differentials in cardiovascular disease.[47] The Commission on Social Determinants of Health recommended that more equal distributions of power, wealth, education, housing, environmental factors, nutrition, and health care were needed to address inequalities in cardiovascular disease and non-communicable diseases.[48]

Air pollution

Particulate matter has been studied for its short- and long-term exposure effects on cardiovascular disease. Currently, PM2.5 is the major focus, in which gradients are used to determine CVD risk. For every 10 μg/m3 of PM2.5 long-term exposure, there was an estimated 8–18% CVD mortality risk.[49] Women had a higher relative risk (RR) (1.42) for PM2.5 induced coronary artery disease than men (0.90) did.[49] Overall, long-term PM exposure increased rate of atherosclerosis and inflammation. In regards to short-term exposure (2 hours), every 25 μg/m3 of PM2.5 resulted in a 48% increase of CVD mortality risk.[50] In addition, after only 5 days of exposure, a rise in systolic (2.8 mmHg) and diastolic (2.7 mmHg) blood pressure occurred for every 10.5 μg/m3 of PM2.5.[50] Other research has implicated PM2.5 in irregular heart rhythm, reduced heart rate variability (decreased vagal tone), and most notably heart failure.[50][51] PM2.5 is also linked to carotid artery thickening and increased risk of acute myocardial infarction.[50][51]

Cardiovascular risk assessment

Existing cardiovascular disease or a previous cardiovascular event, such as a heart attack or stroke, is the strongest predictor of a future cardiovascular event.[52] Age, sex, smoking, blood pressure, blood lipids and diabetes are important predictors of future cardiovascular disease in people who are not known to have cardiovascular disease.[53] These measures, and sometimes others, may be combined into composite risk scores to estimate an individual's future risk of cardiovascular disease.[52] Numerous risk scores exist although their respective merits are debated.[54] Other diagnostic tests and biomarkers remain under evaluation but currently these lack clear-cut evidence to support their routine use. They include family history, coronary artery calcification score, high sensitivity C-reactive protein (hs-CRP), ankle–brachial pressure index, lipoprotein subclasses and particle concentration, lipoprotein(a), apolipoproteins A-I and B, fibrinogen, white blood cell count, homocysteine, N-terminal pro B-type natriuretic peptide (NT-proBNP), and markers of kidney function.[55][56] High blood phosphorus is also linked to an increased risk.[57]

Depression and traumatic stress

There is evidence that mental health problems, in particular depression and traumatic stress, is linked to cardiovascular diseases.

Whereas mental health problems are known to be associated with risk factors for cardiovascular diseases such as smoking, poor diet, and a sedentary lifestyle, these factors alone do not explain the increased risk of cardiovascular diseases seen in depression, stress, and anxiety.[58] Moreover, posttraumatic stress disorder is independently associated with increased risk for incident coronary heart disease, even after adjusting for depression and other covariates.[59]

Occupational exposure

Little is known about the relationship between work and cardiovascular disease, but links have been established between certain toxins, extreme heat and cold, exposure to tobacco smoke, and mental health concerns such as stress and depression.[60]

Non-chemical risk factors

A 2015 SBU-report looking at non-chemical factors found an association for those:[61]

  • with mentally stressful work with a lack of control over their working situation — with an effort-reward imbalance[61]

  • who experience low social support at work; who experience injustice or experience insufficient opportunities for personal development; or those who experience job insecurity[61]

  • those who work night schedules; or have long working weeks[61]

  • those who are exposed to noise[61]

Specifically the risk of stroke was also increased by exposure to ionizing radiation.[61] Hypertension develops more often in those who experience job strain and who have shift-work.[61] Differences between women and men in risk are small, however men risk suffering and dying of heart attacks or stroke twice as often as women during working life.[61]

Chemical risk factors

A 2017 SBU report found evidence that workplace exposure to silica dust, engine exhaust or welding fumes is associated with heart disease.[62] Associations also exist for exposure to arsenic, benzopyrenes, lead, dynamite, carbon disulphide, carbon monoxide, metalworking fluids and occupational exposure to tobacco smoke.[62] Working with the electrolytic production of aluminium or the production of paper when the sulphate pulping process is used is associated with heart disease.[62] An association was also found between heart disease and exposure to compounds which are no longer permitted in certain work environments, such as phenoxy acids containing TCDD (dioxin) or asbestos.[62]

Workplace exposure to silica dust or asbestos is also associated with pulmonary heart disease.There is evidence that workplace exposure to lead, carbon disulphide, phenoxyacids containing TCDD, as well as working in an environment where aluminium is being electrolytically produced, is associated with stroke.[62]

Somatic mutations

As of 2017, evidence suggests that certain leukemia-associated mutations in blood cells may also lead to increased risk of cardiovascular disease. Several large-scale research projects looking at human genetic data have found a robust link between the presence of these mutations, a condition known as clonal hematopoiesis, and cardiovascular disease-related incidents and mortality.[63]


Population-based studies show that atherosclerosis, the major precursor of cardiovascular disease, begins in childhood.

The Pathobiological Determinants of Atherosclerosis in Youth (PDAY) study demonstrated that intimal lesions appear in all the aortas and more than half of the right coronary arteries of youths aged 7–9 years.[65]

This is extremely important considering that 1 in 3 people die from complications attributable to atherosclerosis.

In order to stem the tide, education and awareness that cardiovascular disease poses the greatest threat, and measures to prevent or reverse this disease must be taken.

Obesity and diabetes mellitus are often linked to cardiovascular disease,[66] as are a history of chronic kidney disease and hypercholesterolaemia.[67] In fact, cardiovascular disease is the most life-threatening of the diabetic complications and diabetics are two- to four-fold more likely to die of cardiovascular-related causes than nondiabetics.[68][69][70]


Screening ECGs (either at rest or with exercise) are not recommended in those without symptoms who are at low risk.[71] This includes those who are young without risk factors.[72] In those at higher risk the evidence for screening with ECGs is inconclusive.[73] Additionally echocardiography, myocardial perfusion imaging, and cardiac stress testing is not recommended in those at low risk who do not have symptoms.[74] Some biomarkers may add to conventional cardiovascular risk factors in predicting the risk of future cardiovascular disease; however, the value of some biomarkers is questionable.[75][76] Ankle-brachial index (ABI), high-sensitivity C-reactive protein (hsCRP), and coronary artery calcium, are also of unclear benefit in those without symptoms as of 2018.[77]

The NIH recommends lipid testing in children beginning at the age of 2 if there is a family history of heart disease or lipid problems.[78] It is hoped that early testing will improve lifestyle factors in those at risk such as diet and exercise.[79]

Screening and selection for primary prevention interventions has traditionally been done through absolute risk using a variety of scores (ex.

Framingham or Reynolds risk scores).[80] This stratification has separated people who receive the lifestyle interventions (generally lower and intermediate risk) from the medication (higher risk).

The number and variety of risk scores available for use has multiplied, but their efficacy according to a 2016 review was unclear due to lack of external validation or impact analysis.[81] Risk stratification models often lack sensitivity for population groups and do not account for the large number of negative events among the intermediate and low risk groups.[80] As a result, future preventative screening appears to shift toward applying prevention according to randomized trial results of each intervention rather than large-scale risk assessment.


Up to 90% of cardiovascular disease may be preventable if established risk factors are avoided.[5][82] Currently practiced measures to prevent cardiovascular disease include:

  • Tobacco cessation and avoidance of second-hand smoke.[83] Smoking cessation reduces risk by about 35%.[84]

  • A low-fat, low-sugar, high-fiber diet including whole grains and fruit and vegetables.[83][85][86] Dietary interventions are effective in reducing cardiovascular risk factors over a year, but the longer term effects of such interventions and their impact on cardiovascular disease events is uncertain.[87]

  • At least 150 minutes (2 hours and 30 minutes) of moderate exercise per week.[88][89]

  • Limit alcohol consumption to the recommended daily limits;[83] People who moderately consume alcoholic drinks have a 25–30% lower risk of cardiovascular disease.[90][91] However, people who are genetically predisposed to consume less alcohol have lower rates of cardiovascular disease[92] suggesting that alcohol itself may not be protective. Excessive alcohol intake increases the risk of cardiovascular disease[93][91] and consumption of alcohol is associated with increased risk of a cardiovascular event in the day following consumption.[91]

  • Lower blood pressure, if elevated.

  • A 10 mmHg reduction in blood pressure reduces risk by about 20%.[94]

  • Decrease non-HDL cholesterol.[95][96] Statin treatment reduces cardiovascular mortality by about 31%.[97]

  • Decrease body fat if overweight or obese.[98] The effect of weight loss is often difficult to distinguish from dietary change, and evidence on weight reducing diets is limited.[99] In observational studies of people with severe obesity, weight loss following bariatric surgery is associated with a 46% reduction in cardiovascular risk.[100]

  • Decrease psychosocial stress.[101] This measure may be complicated by imprecise definitions of what constitute psychosocial interventions.[102] Mental stress–induced myocardial ischemia is associated with an increased risk of heart problems in those with previous heart disease.[103] Severe emotional and physical stress leads to a form of heart dysfunction known as Takotsubo syndrome in some people.[104] Stress, however, plays a relatively minor role in hypertension.[105] Specific relaxation therapies are of unclear benefit.[106][107]

Most guidelines recommend combining preventive strategies.

A 2015 Cochrane Review found some evidence that interventions aiming to reduce more than one cardiovascular risk factor may have beneficial effects on blood pressure, body mass index and waist circumference; however, evidence was limited and the authors were unable to draw firm conclusions on the effects on cardiovascular events and mortality.[108] For adults without a known diagnosis of hypertension, diabetes, hyperlipidemia, or cardiovascular disease, routine counseling to advise them to improve their diet and increase their physical activity has not been found to significantly alter behavior, and thus is not recommended.[109] Another Cochrane review suggested that simply providing people with a cardiovascular disease risk score may reduce cardiovascular disease risk factors by a small amount compared to usual care.[110] However, there was some uncertainty as to whether providing these scores had any effect on cardiovascular disease events. It is unclear whether or not dental care in those with periodontitis affects their risk of cardiovascular disease.[111]


A diet high in fruits and vegetables decreases the risk of cardiovascular disease and death.[112] Evidence suggests that the Mediterranean diet may improve cardiovascular outcomes.[113] There is also evidence that a Mediterranean diet may be more effective than a low-fat diet in bringing about long-term changes to cardiovascular risk factors (e.g., lower cholesterol level and blood pressure).[114] The DASH diet (high in nuts, fish, fruits and vegetables, and low in sweets, red meat and fat) has been shown to reduce blood pressure,[115] lower total and low density lipoprotein cholesterol[116] and improve metabolic syndrome;[117] but the long-term benefits outside the context of a clinical trial have been questioned.[118] A high fiber diet appears to lower the risk.[119]

Total fat intake does not appear to be an important risk factor.[120][121] A diet high in trans fatty acids, however, does increase rates of cardiovascular disease.[121][122] Worldwide, dietary guidelines recommend a reduction in saturated fat.[123] However, there are some questions around the effect of saturated fat on cardiovascular disease in the medical literature.[122][124] Reviews from 2014 and 2015 did not find evidence of harm from saturated fats.[122][124] A 2012 Cochrane review found suggestive evidence of a small benefit from replacing dietary saturated fat by unsaturated fat.[125] A 2013 meta analysis concludes that substitution with omega 6 linoleic acid (a type of unsaturated fat) may increase cardiovascular risk.[123] Replacement of saturated fats with carbohydrates does not change or may increase risk.[126][127] Benefits from replacement with polyunsaturated fat appears greatest;[121][128] however, supplementation with omega-3 fatty acids (a type of polysaturated fat) does not appear to have an effect.[129][130]

A 2014 Cochrane review found unclear benefit of recommending a low-salt diet in people with high or normal blood pressure.[131] In those with heart failure, after one study was left out, the rest of the trials show a trend to benefit.[132][133] Another review of dietary salt concluded that there is strong evidence that high dietary salt intake increases blood pressure and worsens hypertension, and that it increases the number of cardiovascular disease events; both as a result of the increased blood pressure and, quite likely, through other mechanisms.[134][135] Moderate evidence was found that high salt intake increases cardiovascular mortality; and some evidence was found for an increase in overall mortality, strokes, and left ventricular hypertrophy.[134]


Blood pressure medication reduces cardiovascular disease in people at risk,[94] irrespective of age,[136] the baseline level of cardiovascular risk,[137] or baseline blood pressure.[138] The commonly-used drug regimens have similar efficacy in reducing the risk of all major cardiovascular events, although there may be differences between drugs in their ability to prevent specific outcomes.[139] Larger reductions in blood pressure produce larger reductions in risk,[139] and most people with high blood pressure require more than one drug to achieve adequate reduction in blood pressure.[140]

Statins are effective in preventing further cardiovascular disease in people with a history of cardiovascular disease.[141] As the event rate is higher in men than in women, the decrease in events is more easily seen in men than women.[141] In those at risk, but without a history of cardiovascular disease (primary prevention), statins decrease the risk of death and combined fatal and non-fatal cardiovascular disease.[142] The benefit, however, is small.[143] A United States guideline recommends statins in those who have a 12% or greater risk of cardiovascular disease over the next ten years.[144] Niacin, fibrates and CETP Inhibitors, while they may increase HDL cholesterol do not affect the risk of cardiovascular disease in those who are already on statins.[145]

Anti-diabetic medication may reduce cardiovascular risk in people with Type 2 Diabetes, although evidence is not conclusive.[146] A meta-analysis in 2009 including 27,049 participants and 2,370 major vascular events showed a 15% relative risk reduction in cardiovascular disease with more-intensive glucose lowering over an average follow-up period of 4.4 years, but an increased risk of major hypoglycemia.[147]

Aspirin has been found to be of only modest benefit in those at low risk of heart disease as the risk of serious bleeding is almost equal to the benefit with respect to cardiovascular problems.[148] In those at very low risk, including those over the age of 70, it is not recommended.[149][150] The United States Preventive Services Task Force recommends against use of aspirin for prevention in women less than 55 and men less than 45 years old; however, in those who are older it is recommends in some individuals.[151]

The use of vasoactive agents for people with pulmonary hypertension with left heart disease or hypoxemic lung diseases may cause harm and unnecessary expense.[152]

Physical activity

Exercise-based cardiac rehabilitation following a heart attack reduces the risk of death from cardiovascular disease and leads to less hospitalizations.[153] There have been few high quality studies of the benefits of exercise training in people with increased cardiovascular risk but no history of cardiovascular disease.[154]

A systematic review estimated that inactivity is responsible for 6% of the burden of disease from coronary heart disease worldwide.[155] The authors estimated that 121,000 deaths from coronary heart disease could have been averted in Europe in 2008, if physical inactivity had been removed.

A Cochrane review found some evidence that yoga has beneficial effects on blood pressure and cholesterol, but studies included in this review were of low quality.[156] Tentative evidence suggests that home-based exercise programs may be more efficient at improving exercise adherence.[157]

Dietary supplements

While a healthy diet is beneficial, the effect of antioxidant supplementation (vitamin E, vitamin C, etc.) or vitamins has not been shown to protect against cardiovascular disease and in some cases may possibly result in harm.[158][159][160] Mineral supplements have also not been found to be useful.[161] Niacin, a type of vitamin B3, may be an exception with a modest decrease in the risk of cardiovascular events in those at high risk.[162][163] Magnesium supplementation lowers high blood pressure in a dose dependent manner.[164] Magnesium therapy is recommended for people with ventricular arrhythmia associated with torsades de pointes who present with long QT syndrome as well as for the treatment of people with digoxin intoxication-induced arrhythmias.[165] There is no evidence to support omega-3 fatty acid supplementation.[166]


Cardiovascular disease is treatable with initial treatment primarily focused on diet and lifestyle interventions.[2] Influenza may make heart attacks and strokes more likely and therefore influenza vaccination may decrease the chance of cardiovascular events and death in people with heart disease.[167]

Proper CVD management necessitates a focus on MI and stroke cases due to their combined high mortality rate, keeping in mind the cost-effectiveness of any intervention, especially in developing countries with low or middle income levels.[80] Regarding MI, strategies using aspirin, atenolol, streptokinase or tissue plasminogen activator have been compared for quality-adjusted life-year (QALY) in regions of low and middle income.

The costs for a single QALY for aspirin and atenolol were less than $25, streptokinase was about $680, and t-PA was $16,000.[168] Aspirin, ACE inhibitors, beta blockers, and statins used together for secondary CVD prevention in the same regions showed single QALY costs of $350.[168]

A 2018 Cochrane review did not find any additional benefit in terms of mortality and serious adverse events when blood pressure targets were lowered to ≤ 135/85 mmHg from ≤ 140 to 160/90 to 100 mmHg.[169]


Cardiovascular diseases are the leading cause of death worldwide and in all regions except Africa.[170] In 2008, 30% of all global death was attributed to cardiovascular diseases.

Death caused by cardiovascular diseases are also higher in low- and middle-income countries as over 80% of all global deaths caused by cardiovascular diseases occurred in those countries.

It is also estimated that by 2030, over 23 million people will die from cardiovascular diseases each year.

It is estimated that 60% of the world's cardiovascular disease burden will occur in the South Asian subcontinent despite only accounting for 20% of the world's population.

This may be secondary to a combination of genetic predisposition and environmental factors.

Organizations such as the Indian Heart Association are working with the World Heart Federation to raise awareness about this issue.[171]


There is evidence that cardiovascular disease existed in pre-history,[172] and research into cardiovascular disease dates from at least the 18th century.[173] The causes, prevention, and/or treatment of all forms of cardiovascular disease remain active fields of biomedical research, with hundreds of scientific studies being published on a weekly basis.

Recent areas of research include the link between inflammation and atherosclerosis[174] the potential for novel therapeutic interventions,[175] and the genetics of coronary heart disease.[176]


Citation Link//www.ncbi.nlm.nih.gov/pubmed/23239837Go AS, Mozaffarian D, Roger VL, Benjamin EJ, Berry JD, Borden WB, et al. (January 2013). "Heart disease and stroke statistics--2013 update: a report from the American Heart Association". Circulation. 127 (1): e6–e245. doi:10.1161/cir.0b013e31828124ad. PMC 5408511. PMID 23239837.
Sep 26, 2019, 10:28 AM
Citation Linkweb.archive.orgMendis S, Puska P, Norrving B (2011). Global Atlas on Cardiovascular Disease Prevention and Control (PDF). World Health Organization in collaboration with the World Heart Federation and the World Stroke Organization. pp. 3–18. ISBN 978-92-4-156437-3. Archived (PDF) from the original on 2014-08-17.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/25530442Naghavi M, Wang H, Lozano R, Davis A, Liang X, Zhou M, et al. (GBD 2013 Mortality and Causes of Death Collaborators) (January 2015). "Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013". Lancet. 385 (9963): 117–71. doi:10.1016/S0140-6736(14)61682-2. PMC 4340604. PMID 25530442.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/27733281Wang H, Naghavi M, Allen C, Barber RM, Bhutta ZA, Carter A, et al. (GBD 2015 Mortality and Causes of Death Collaborators) (October 2016). "Global, regional, and national life expectancy, all-cause mortality, and cause-specific mortality for 249 causes of death, 1980-2015: a systematic analysis for the Global Burden of Disease Study 2015". Lancet. 388 (10053): 1459–1544. doi:10.1016/S0140-6736(16)31012-1. PMC 5388903. PMID 27733281.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/18316498McGill HC, McMahan CA, Gidding SS (March 2008). "Preventing heart disease in the 21st century: implications of the Pathobiological Determinants of Atherosclerosis in Youth (PDAY) study". Circulation. 117 (9): 1216–27. doi:10.1161/CIRCULATIONAHA.107.717033. PMID 18316498.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/27431356O'Donnell MJ, Chin SL, Rangarajan S, Xavier D, Liu L, Zhang H, et al. (August 2016). "Global and regional effects of potentially modifiable risk factors associated with acute stroke in 32 countries (INTERSTROKE): a case-control study". Lancet. 388 (10046): 761–75. doi:10.1016/S0140-6736(16)30506-2. PMID 27431356.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/24190439Spinks A, Glasziou PP, Del Mar CB (November 2013). "Antibiotics for sore throat". The Cochrane Database of Systematic Reviews. 11 (11): CD000023. doi:10.1002/14651858.CD000023.pub4. PMC 6457983. PMID 24190439.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/24339983Sutcliffe P, Connock M, Gurung T, Freeman K, Johnson S, Ngianga-Bakwin K, et al. (2013). "Aspirin in primary prevention of cardiovascular disease and cancer: a systematic review of the balance of evidence from reviews of randomized trials". PLOS ONE. 8 (12): e81970. Bibcode:2013PLoSO...881970S. doi:10.1371/journal.pone.0081970. PMC 3855368. PMID 24339983.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/24074752Sutcliffe P, Connock M, Gurung T, Freeman K, Johnson S, Kandala NB, et al. (September 2013). "Aspirin for prophylactic use in the primary prevention of cardiovascular disease and cancer: a systematic review and overview of reviews". Health Technology Assessment. 17 (43): 1–253. doi:10.3310/hta17430. PMC 4781046. PMID 24074752.
Sep 26, 2019, 10:28 AM
Citation Linkweb.archive.orgInstitute of Medicine of the National Academies (2010). "Epidemiology of Cardiovascular Disease". In Fuster V, Kelly BB (eds.). Promoting cardiovascular health in the developing world : a critical challenge to achieve global health. Washington, DC: National Academies Press. ISBN 978-0-309-14774-3. Archived from the original on 2017-09-08.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/24573352Moran AE, Forouzanfar MH, Roth GA, Mensah GA, Ezzati M, Murray CJ, Naghavi M (April 2014). "Temporal trends in ischemic heart disease mortality in 21 world regions, 1980 to 2010: the Global Burden of Disease 2010 study". Circulation. 129 (14): 1483–92. doi:10.1161/circulationaha.113.004042. PMC 4181359. PMID 24573352.
Sep 26, 2019, 10:28 AM
Citation Linkopenlibrary.orgMendis S, Puska P, Norrving B (2011). Global atlas on cardiovascular disease prevention and control (1 ed.). Geneva: World Health Organization in collaboration with the World Heart Federation and the World Stroke Organization. p. 48. ISBN 978-92-4-156437-3.
Sep 26, 2019, 10:28 AM
Citation Linkweb.archive.org"WHO Disease and injury country estimates". World Health Organization. 2009. Archived from the original on 2009-11-11. Retrieved Nov 11, 2009.
Sep 26, 2019, 10:28 AM
Citation Linkopenlibrary.orgKelly BB, Fuster V (2010). Promoting Cardiovascular Health in the Developing World: A Critical Challenge to Achieve Global Health. Washington, DC: National Academies Press. ISBN 978-0-309-14774-3.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/22392596Finks SW, Airee A, Chow SL, Macaulay TE, Moranville MP, Rogers KC, Trujillo TC (April 2012). "Key articles of dietary interventions that influence cardiovascular mortality". Pharmacotherapy. 32 (4): e54–87. doi:10.1002/j.1875-9114.2011.01087.x. PMID 22392596.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/23001745Micha R, Michas G, Mozaffarian D (December 2012). "Unprocessed red and processed meats and risk of coronary artery disease and type 2 diabetes--an updated review of the evidence". Current Atherosclerosis Reports. 14 (6): 515–24. doi:10.1007/s11883-012-0282-8. PMC 3483430. PMID 23001745.
Sep 26, 2019, 10:28 AM
Citation Linkweb.archive.orgMendis S, Puska P, Norrving B (2011). Global Atlas on Cardiovascular Disease Prevention and Control. World Health Organization in collaboration with the World Heart Federation and the World Stroke Organization. ISBN 978-92-4-156437-3. Archived from the original on 2016-05-06.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/28932354Ciaccio EJ, Lewis SK, Biviano AB, Iyer V, Garan H, Green PH (August 2017). "Cardiovascular involvement in celiac disease". World Journal of Cardiology (Review). 9 (8): 652–666. doi:10.4330/wjc.v9.i8.652. PMC 5583538. PMID 28932354.
Sep 26, 2019, 10:28 AM
Citation Link//www.ncbi.nlm.nih.gov/pubmed/15364185Yusuf S, Hawken S, Ounpuu S, Dans T, Avezum A, Lanas F, et al. (2004). "Effect of potentially modifiable risk factors associated with myocardial infarction in 52 countries (the INTERHEART study): case-control study". Lancet. 364 (9438): 937–52. doi:10.1016/S0140-6736(04)17018-9. PMID 15364185.
Sep 26, 2019, 10:28 AM
Citation Linkarchive.orgMcPhee S (2012). Current medical diagnosis & treatment. New York: McGraw-Hill Medical. p. 430. ISBN 978-0-07-176372-1.
Sep 26, 2019, 10:28 AM