Vasodilators are medications that widen blood vessels by relaxing vascular smooth muscle. They are a therapy used in cardiovascular and critical care medicine. They are commonly used to treat hypertension, angina, heart failure, and some pulmonary vascular disorders. They are also used in acute settings to reduce cardiac workload and improve blood flow.

Vasopressors are medications that raise blood pressure by increasing vascular tone and/or supporting cardiac output. They are a therapy used in acute care medicine, especially critical care, emergency medicine, anesthesia, and cardiology. They are most commonly started when hypotension threatens organ perfusion despite initial resuscitation. They are typically given as continuous intravenous (IV) infusions with close hemodynamic monitoring.

Inotropic Agents are medications that change the force of heart muscle contraction. They are a therapy used in cardiovascular and critical care medicine. They are most often used when cardiac output is inadequate for the body’s needs. They are commonly discussed in acute heart failure, cardiogenic shock, and perioperative cardiac care.

Swan Ganz Catheter is a balloon-tipped catheter used to measure heart and lung circulation pressures. It is most commonly used for invasive hemodynamic monitoring during right heart catheterization. It helps clinicians assess cardiac output and filling pressures in critically ill or complex cardiovascular patients. It is most often used in intensive care units (ICUs), operating rooms, and catheterization laboratories.

Hemodynamic Monitoring is the measurement and interpretation of blood flow and pressure in the cardiovascular system. It is a diagnostic and clinical management approach grounded in cardiovascular physiology rather than a single test. It is commonly used in emergency care, the intensive care unit (ICU), cardiac catheterization settings, and perioperative cardiothoracic surgery.

A Cardiac ICU is a hospital intensive care unit dedicated to critically ill patients with acute cardiovascular disease. It is a clinical care setting, not a single test or procedure. It is commonly used for advanced monitoring and organ support in conditions such as myocardial infarction, cardiogenic shock, and life-threatening arrhythmias. It often interfaces with interventional cardiology, electrophysiology, cardiac surgery, and critical care medicine.

Cardiac Anesthesia is the anesthetic care of patients undergoing cardiac surgery and many high-risk cardiovascular procedures. It is a perioperative clinical discipline that combines anesthesia, cardiovascular physiology, and critical care. It is commonly used for coronary artery bypass grafting (CABG), valve surgery, aortic surgery, and selected catheter-based interventions. It focuses on maintaining stable hemodynamics (blood pressure and cardiac output) and protecting the heart, brain, and kidneys during procedures.

Cardiac Rehabilitation Phase III is the long-term, maintenance stage of cardiac rehabilitation after the early supervised phases. It is a therapy and secondary prevention program centered on ongoing exercise training, education, and risk-factor management. It is commonly used after myocardial infarction (MI), percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG), heart failure, and other major cardiac diagnoses. It bridges structured rehabilitation into lifelong cardiovascular health habits in outpatient and community settings.

Cardiac Rehabilitation Phase II is a structured, outpatient rehabilitation program after a cardiac event or cardiac procedure. It is a therapeutic and preventive intervention that combines supervised exercise training with education and risk-factor management. It is commonly used in cardiology after myocardial infarction, percutaneous coronary intervention, coronary artery bypass grafting, and heart failure hospitalization. It bridges early recovery (Phase I) to longer-term lifestyle maintenance (often called Phase III).

Cardiac Rehabilitation Phase I is the early, inpatient stage of cardiac rehabilitation that begins during hospitalization after a cardiac event or cardiac surgery. It is a structured, multidisciplinary therapy and education program focused on safe mobilization, monitoring, and recovery planning. It is commonly used after myocardial infarction (heart attack), percutaneous coronary intervention (PCI), and coronary artery bypass grafting (CABG). It also supports patients hospitalized with heart failure, arrhythmias, or other acute cardiovascular conditions when clinically appropriate.