Causes of Myocardial Infarction

Written by Zhang Yue Mei

Cardiology

Updated on September 27, 2024

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Myocardial infarction is a relatively common severe heart disease in clinical practice, which can lead to serious complications and even death if effective emergency treatment is not administered. The main cause of myocardial infarction is due to long-term dyslipidemia. Elevated blood lipids cause arteriosclerosis and coronary artery hardening, thickening of the intima, and plaque formation. High lipids slow down blood flow, making it very easy for blood clots to form. Detached plaques and the formation of blood clots obstruct the blood vessels supplying the heart muscle, causing the heart muscle to lose its blood supply and undergo necrosis.

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Written by Zeng Wei Jie

Cardiology

1min

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How to treat atrial myocardial infarction?

Atrial myocardial infarction is also a type of myocardial infarction. Isolated atrial myocardial infarction is relatively rare and often coexists with ventricular infarction. Therefore, the treatment principles for myocardial infarction are essentially the same, focusing on promptly improving myocardial ischemia, myocardial necrosis, and the long-term prognosis of the patient. The treatment mainly includes: first, reperfusion therapy, which involves thrombolysis for ST-segment elevation cases, stent placement for most patients, and bypass surgery for a small number of patients. The second aspect is secondary prevention and treatment, including antiplatelet therapy, blood pressure control, blood sugar management, diet, exercise, and other comprehensive treatments. The peculiarity of atrial myocardial infarction is that some patients may experience atrial fibrillation, thus some of these patients may require treatment to control ventricular rate.

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Written by Li Hai Wen

Cardiology

50sec

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Symptoms of myocardial infarction

Myocardial infarction is a relatively common disease in daily life, and it also poses a serious threat to people's health and safety. The symptoms of a myocardial infarction mainly include the following aspects: First, severe chest pain, which is often the most common symptom of myocardial infarction, typically feels like a crushing sensation or is accompanied by a feeling of impending doom. Second, symptoms of heart failure, which, when myocardial infarction is complicated by heart failure, often manifest as difficulty breathing and profuse sweating. Third, symptoms of arrhythmia, which, when myocardial infarction is complicated by arrhythmia, often presents with symptoms like palpitations and dizziness.

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Written by Li Hai Wen

Cardiology

56sec

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How is myocardial infarction treated?

Myocardial infarction is a relatively common critical illness in our daily lives. Many patients often delay their condition severely due to untimely treatment, which becomes an important cause of disability and death. So how should myocardial infarction be treated? It should be treated from the following two aspects: First, acute myocardial infarction. For acute myocardial infarction, it is necessary to promptly open the occluded blood vessels, restore cardiac perfusion, and save viable myocardium. This can be achieved through emergency interventional treatment or thrombolytic therapy. Second, old myocardial infarction. At this time, treatment mainly involves taking oral aspirin and statins to stabilize the disease and prevent the condition from worsening or deteriorating. (Medication should be used under the guidance of a professional doctor.)

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Written by Xie Zhi Hong

Cardiology

1min 1sec

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How long does the pain from a myocardial infarction last?

Acute myocardial infarction often develops from angina pectoris. When angina persists for more than 30 minutes, myocardial necrosis begins. After the myocardial necrosis, symptoms similar to those of a burn appear, such as reddening of the myocardium, blistering, and necrosis. Generally speaking, these symptoms last no less than three days. Many people experience significant improvement after three days because the area of myocardial infarction is relatively small. In patients with extensive myocardial infarction, symptoms can last for 7 days or even longer. During this time, patients may also experience respiratory difficulties, recurrent chest pain, and even sudden death. Therefore, the duration of symptoms in myocardial infarction generally ranges from 3 to 7 days. If there is no improvement within this period, the disease might have led to severe complications.

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Written by Zhang Yue Mei

Cardiology

46sec

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Causes of Myocardial Infarction

Myocardial infarction is a relatively common severe heart disease in clinical practice, which can lead to serious complications and even death if effective emergency treatment is not administered. The main cause of myocardial infarction is due to long-term dyslipidemia. Elevated blood lipids cause arteriosclerosis and coronary artery hardening, thickening of the intima, and plaque formation. High lipids slow down blood flow, making it very easy for blood clots to form. Detached plaques and the formation of blood clots obstruct the blood vessels supplying the heart muscle, causing the heart muscle to lose its blood supply and undergo necrosis.