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Coronary Artery Disease: Pathophysiology, Prevention, and Treatment
Student Name
Institution
Course
Instructor
Date
, 2
Description of Pathology
Coronary artery disease (CAD) represents the most prevalent form of cardiovascular
disease and stands as the leading cause of death globally, affecting millions of individuals
worldwide. According to the American Heart Association, CAD accounts for approximately
655,000 deaths annually in the United States alone, with over 18 million adults currently living
with this condition (Yahagi et al., 2017). When coronary arteries become narrowed or blocked
by atherosclerosis, this condition arises. The disease often takes decades to develop, starting with
problems in the endothelium and ending with plaque accumulation, inflammation, and the risk of
rupture. Factors that increase the risk of CAD are high blood pressure, diabetes, smoking,
obesity, a lack of exercise, as well as being older, a male, or having a family history. Heart
disease costs the United States more than $200 billion every year, including both direct expenses
for treatment and lost productivity, as well as the deaths of patients.
Normal Anatomy of the Major Body System Affected
In the cardiovascular system, the heart, blood vessels, and about five liters of blood all
cooperate to bring oxygen, nutrients, hormones, and waste products to every part of the body.
The location of the heart, a closed-fist-sized organ, is in the space called the mediastinum, just
under the lungs and inside a pericardial sac. Anatomically, the heart consists of four chambers:
two upper chambers called atria (right and left) and two lower chambers called ventricles (right
and left), separated by a muscular wall known as the septum (Dhakal & Pokharel, 2024). The
heart wall itself comprises three distinct layers: the epicardium (outer layer), myocardium
(middle muscular layer responsible for contraction), and endocardium (inner smooth layer that
lines the chambers). The main arteries of the coronary system begin from the aortic root and are
the right and left main coronary arteries. The left coronary artery divides into the left anterior
Coronary Artery Disease: Pathophysiology, Prevention, and Treatment
Student Name
Institution
Course
Instructor
Date
, 2
Description of Pathology
Coronary artery disease (CAD) represents the most prevalent form of cardiovascular
disease and stands as the leading cause of death globally, affecting millions of individuals
worldwide. According to the American Heart Association, CAD accounts for approximately
655,000 deaths annually in the United States alone, with over 18 million adults currently living
with this condition (Yahagi et al., 2017). When coronary arteries become narrowed or blocked
by atherosclerosis, this condition arises. The disease often takes decades to develop, starting with
problems in the endothelium and ending with plaque accumulation, inflammation, and the risk of
rupture. Factors that increase the risk of CAD are high blood pressure, diabetes, smoking,
obesity, a lack of exercise, as well as being older, a male, or having a family history. Heart
disease costs the United States more than $200 billion every year, including both direct expenses
for treatment and lost productivity, as well as the deaths of patients.
Normal Anatomy of the Major Body System Affected
In the cardiovascular system, the heart, blood vessels, and about five liters of blood all
cooperate to bring oxygen, nutrients, hormones, and waste products to every part of the body.
The location of the heart, a closed-fist-sized organ, is in the space called the mediastinum, just
under the lungs and inside a pericardial sac. Anatomically, the heart consists of four chambers:
two upper chambers called atria (right and left) and two lower chambers called ventricles (right
and left), separated by a muscular wall known as the septum (Dhakal & Pokharel, 2024). The
heart wall itself comprises three distinct layers: the epicardium (outer layer), myocardium
(middle muscular layer responsible for contraction), and endocardium (inner smooth layer that
lines the chambers). The main arteries of the coronary system begin from the aortic root and are
the right and left main coronary arteries. The left coronary artery divides into the left anterior
