Which cardiovascular abnormality is increasing in incidence in the United States?

• A. Chronic heart failure
• B. Myocardial infarction
• C. Cerebral vascular events
• D. Prinzmetal's angina

Answer: (A)

The situation reflects how the burden of a chronic cardiovascular condition is growing as people live longer with cardiovascular disease. Improvements in acute care and treatments have reduced deaths from heart attacks and other events, so more patients survive to develop long‑term problems. As the population ages, more individuals accumulate risk factors like hypertension, diabetes, and coronary heart disease, and many who have had myocardial injury go on to develop heart failure. This combination increases the number of people living with chronic heart failure, boosting its overall incidence and prevalence. In contrast, advances in prevention and acute management have helped keep myocardial infarction rates from rising, and while cerebrovascular events are affected by risk-factor management, their incidence is not increasing in the same way. Prinzmetal’s angina is rare and does not show a rising trend.