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Cardiology --- Cardiovascular Diseases. --- Cardiology. --- Cardiovascular Diseases
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Cardiology --- Cardiovascular Diseases. --- Cardiology. --- Cardiovascular Diseases
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Cardiology --- Cardiovascular Diseases. --- Cardiology. --- Cardiovascular Diseases
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Cardiac intensive care. --- Cardiovascular Diseases. --- Critical Care.
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Internship and Residency --- Cardiology --- Cardiovascular Diseases
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Cardiovascular system --- Cardiology --- Diseases --- Cardiovascular Diseases
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Electrocardiography --- Heart Diseases --- ELECTROCARDIOGRAPHY --- Cardiovascular Diseases --- diagnosis --- Heart Diseases - diagnosis --- Cardiovascular Diseases - diagnosis
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Cardiovascular Diseases. --- Cardiology. --- Cardiovascular system --- Cardiologie --- Appareil cardiovasculaire --- Diseases. --- Maladies --- Cardiology --- Diseases --- 605.12 --- cardiologie --- vaatziekten --- hart- en vaatziekten, hartbewaking --- Cardiovascular diseases --- Heart --- Internal medicine --- Cardiovascular Diseases
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Echocardiography --- Cardiovascular Diseases --- Echocardiographie --- methods. --- ultrasonography. --- Heart diseases --- Handbooks --- Diagnosis
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Secondhand smoke (SHS) or exposure to cigarette smoke is a major health problem. This phenomenon results in significant cardiovascular mortality. In the United States, approximately 50 000 deaths annually due to cardiovascular disease are attributed to passive smoking.
Cigarette smoke contains more than 4000 substance. The smoke inhaled by passive smoker is more powerful than the smoke inhaled by the active smoker.
The evidence that SHS causes heart disease has been accumulated for the early 1980s. The mechanisms by which passive smoking increases the risk are multiple and interact with each other, but many of them are not yet understood and require further research. The effects of passive smoking are fast. They cause platelet aggregation, endothelial dysfunction, increase aortic stiffness and HDL levels, as well as inflammatory process. Passive smoking can also accelerate the progression of atherosclerosis, decrease antioxidant levels accelerating lipid perodixation, increase LDL levels and infarct size. In addition, it can induce oxidative stress, mitochondrial damage and decrease heart rate variability. Le tabagisme passif, ou l’exposition à la fumée de cigarette, est un problème de santé majeur. Ce phénomène engendre une mortalité cardiovasculaire importante. Aux Etats-Unis, environ 50 000 décès par an, dus à des maladies cardiovasculaires, sont attribués au tabagisme passif.
La fumée de cigarette contient plus de 4000 substances. Celle inhalé par le fumeur passif est plus puissant que celle inhalée par le fumeur actif.
Les preuves que le tabagisme passif augmente le risque de maladies cardiovasculaires ont été accumulées depuis le début des années 80. Les mécanismes par lesquels le tabagisme passif augmente ce risque sont multiples et interagissent entre eux, mais de nombreux mécanismes ne sont pas encore élucidés et demandent des recherches approfondies. Les effets du tabagisme passifs sont rapides. Celui-ci induit une augmentation de l’agrégation plaquettaire, un dysfonctionnement endothélial, une augmentation de la raideur aortique et du taux de HDL, ainsi qu’un processus inflammatoire. Le tabagisme passif peut également accélérer la progression de l’athérosclérose, réduire la quantité en antioxydant accélérant la peroxydation lipidique, augmenter la quantité de LDL et la taille de l’infarctus. De plus, il peut induire un stress oxydatif, des dommages mitochondriaux et une réduction de la variabilité du rythme cardiaque.
Tobacco Use Disorder --- Tobacco Smoke Pollution --- Cardiovascular Diseases
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