HCA 205 Module 2 Common Cardiovascular Diseases Example

One Chain of Damage: Hypertension, Coronary Disease, Heart Failure and Stroke

Student Name

Health Care Administration Program, Aspen University

HCA 205: Principles of Health and Disease

Instructor Name

Month Day, Year

One Chain of Damage: Hypertension, Coronary Disease, Heart Failure and Stroke

No condition kills more Americans than heart disease, and the American Heart Association's annual statistics report tracks its toll on lives and health care spending each year (Palaniappan et al., 2026). The most common cardiovascular diseases are closely linked: high blood pressure damages arteries, damaged arteries narrow and cause heart attacks and strokes, and a damaged heart can fail. This paper surveys four common cardiovascular diseases and follows them through a composite patient to show how they connect.

The Composite Patient

Mrs. G., a composite 64-year-old woman who ran a school cafeteria until she retired, had high blood pressure for twelve years, taking her medicine irregularly. At 60 she had a heart attack. Two years later she developed shortness of breath and ankle swelling from heart failure, and this year she had a small stroke. Her history shows how one untreated disease can lead to others.

Hypertension

Hypertension is blood pressure that stays at or above 130/80 mm Hg under current US guidelines. It usually causes no symptoms, which is why it is called a silent disease. Risk factors include age, family history, excess weight, high salt intake, inactivity, heavy alcohol use and kidney disease. Diagnosis requires repeated measurements, ideally including readings at home. Treatment combines lifestyle changes with medicines such as thiazide diuretics, ACE inhibitors, angiotensin receptor blockers and calcium channel blockers.

Diet and Blood Pressure

Diet has a measurable effect. In the Dietary Approaches to Stop Hypertension trial, a diet rich in fruits, vegetables and low-fat dairy with reduced saturated fat lowered systolic and diastolic blood pressure by 5.5 and 3.0 mm Hg more than a control diet, and by 11.4 and 5.5 mm Hg among participants with hypertension (Appel et al., 1997). For Mrs. G., consistent medicine and a diet like this could have slowed the damage.

Coronary Artery Disease

Coronary artery disease occurs when fatty plaque builds up in the arteries that supply the heart. Plaque narrows the arteries and can rupture, causing a clot that blocks blood flow and produces a heart attack. Symptoms include chest pain or pressure, often spreading to the arm or jaw, shortness of breath and sweating; women and older adults may have less typical symptoms. Tests include an electrocardiogram, blood troponin levels, stress testing and coronary angiography. Treatment ranges from medicines such as aspirin and statins to stents and bypass surgery.

Heart Failure

Heart failure means the heart cannot pump enough blood to meet the body's needs. It often follows a heart attack or years of high blood pressure. Symptoms include shortness of breath, fatigue and swelling of the legs. An echocardiogram measures how well the heart pumps, and a blood test called BNP helps confirm the diagnosis. Treatment includes several classes of medicines, limiting salt and fluid, daily weights and close follow-up to prevent hospital admissions.

Stroke

A stroke occurs when blood flow to part of the brain is blocked by a clot, an ischemic stroke, or when a blood vessel bursts, a hemorrhagic stroke. Signs include sudden face drooping, arm weakness and speech difficulty; the acronym FAST reminds the public to call emergency services quickly. A CT scan distinguishes the two types. Clot-dissolving medicine or clot removal can limit damage if given within hours. High blood pressure is the most important modifiable risk factor for stroke.

Comparison

The table compares the four diseases.

Shared Risk Factors

The four diseases share risk factors. An international pooled analysis found that raised blood pressure, unhealthy cholesterol, excess body weight, tobacco and diabetes together explained more than half of new cardiovascular disease over ten years (Global Cardiovascular Risk Consortium, 2023). Controlling these factors prevents several diseases at once.

Mrs. G.'s Chain

Mrs. G.'s story follows the chain. Untreated high blood pressure and years of arterial damage contributed to her heart attack. The heart attack weakened her heart muscle, leading to heart failure. Her continued high blood pressure raised her stroke risk. Consistent blood pressure control from the start might have interrupted the chain at the first link.

What It Means for a Practice

For a primary care practice, cardiovascular disease means a large share of visits, medications and referrals. Administrators support prevention through blood pressure registries, reminders for patients whose readings are high, home blood pressure monitor programs and team-based care in which nurses or pharmacists adjust medicines under protocols. Heart failure programs with follow-up calls after discharge can reduce readmissions.

Cost and Burden

Cardiovascular disease carries a large financial cost as well as a human one. Hospital stays for heart attacks and heart failure, procedures such as stents and bypass surgery, lifelong medicines and lost work time add up. Heart failure ranks among the leading causes of hospital admission for people over 65, and readmissions within 30 days are frequent. For a health system, every patient whose blood pressure is controlled early represents admissions that may never happen.

Disparities also matter. Rates of high blood pressure and stroke are higher among Black adults than White adults in the United States, and blood pressure control is lower among people without regular care. Practices that track control rates by patient group can see where outreach is needed.

Medicines Patients Stop

Many patients stop blood pressure or cholesterol medicines because they feel no different, dislike side effects or face costs. Mrs. G.'s irregular use is common. Simple once-daily regimens, pill organizers, refill reminders and asking at every visit whether medicines are being taken help patients stay on treatment.

Conclusion

Hypertension, coronary artery disease, heart failure and stroke are linked by shared risk factors and by the way one leads to another. Each can be detected with specific tests and treated with medicines and procedures, but the greatest gains come from prevention: controlling blood pressure, cholesterol, weight, smoking and diabetes. Mrs. G.'s history shows the cost of missing the first link.

References

Appel, L. J., Moore, T. J., Obarzanek, E., Vollmer, W. M., Svetkey, L. P., Sacks, F. M., Bray, G. A., Vogt, T. M., Cutler, J. A., Windhauser, M. M., Lin, P.-H., Karanja, N., Simons-Morton, D., McCullough, M., Swain, J., Steele, P., Evans, M. A., Miller, E. R., & Harsha, D. W. (1997). A clinical trial of the effects of dietary patterns on blood pressure. New England Journal of Medicine, 336(16), 1117-1124. https://doi.org/10.1056/NEJM199704173361601

Global Cardiovascular Risk Consortium. (2023). Global effect of modifiable risk factors on cardiovascular disease and mortality. New England Journal of Medicine, 389(14), 1273-1285. https://doi.org/10.1056/NEJMoa2206916

Palaniappan, L. P., Allen, N. B., Almarzooq, Z. I., Anderson, C. A. M., Arora, P., Avery, C. L., Baker-Smith, C. M., Bansal, N., Currie, M. E., Earlie, R. S., Fan, W., Fetterman, J. L., Barone Gibbs, B., Heard, D. G., Hiremath, S., Hong, H., Hyacinth, H. I., Ibeh, C., Jiang, T., . . . Khan, S. S. (2026). 2026 heart disease and stroke statistics: A report of US and global data from the American Heart Association. Circulation, 153(9), e275-e906. https://doi.org/10.1161/CIR.0000000000001412