I21.01

Clinical Causes: Atherosclerosis (buildup of fatty deposits in the coronary arteries) Blood clots forming at the site of a plaque rupture Coronary artery spasms Rarely, conditions like vasculitis affecting coronary vessels Risk factors contributing to blockage include smoking, high blood pressure, high cholesterol, diabetes, obesity, and a family history of heart disease

Key Symptoms: Severe chest pain or discomfort, often described as pressure, squeezing, or fullness Pain radiating to the jaw, neck, back, shoulders, or arms Shortness of breath Sweating or cold sweat Nausea or vomiting Lightheadedness or dizziness A sense of impending doom

Diagnosis Path: Diagnosis generally involves a combination of clinical evaluation, electrocardiogram (ECG), blood tests, and imaging studies: - **Electrocardiogram (ECG):** Reveals characteristic ST-segment elevation in specific leads corresponding to affected heart regions. - **Blood Tests:** Detect cardiac enzymes such as troponins that indicate heart muscle damage. - **Coronary Angiography:** An imaging technique that visualizes blood flow within coronary arteries and confirms the presence of blockage. - **Echocardiogram:** May be used to assess heart function and detect areas of damaged muscle.

Treatment Protocols: Immediate treatment aims to restore blood flow to minimize heart muscle damage: - **Reperfusion therapy:** Typically involves percutaneous coronary intervention (PCI), such as angioplasty with stent placement, or thrombolytic (clot-busting) medications. - **Medications:** Used to manage symptoms and prevent further clot formation, including antiplatelet agents, anticoagulants, pain relievers, nitrates, beta-blockers, and ACE inhibitors. - **Supportive care:** Such as oxygen therapy and bed rest initially. - **Follow-up care:** Includes lifestyle modifications, cardiac rehabilitation, and medications to reduce risk factors and prevent future events.