What is the difference between anteroseptal myocardial infarction and anterior myocardial infarction?

Anterior septal myocardial infarction and anterior wall myocardial infarction differ in aspects such as the site of infarction, clinical manifestations, and electrocardiogram (ECG) findings. The specific analysis is as follows:

1. Site of Infarction

Anterior septal myocardial infarction refers to ischemia, necrosis, and damage in the myocardium supplied by the anterior descending branch of the coronary artery and its branches. Anterior wall myocardial infarction refers to ischemia, necrosis, and injury in the myocardial area supplied by the left anterior descending coronary artery.

2. Clinical Manifestations

Anterior septal myocardial infarction mainly presents with chest pain, shortness of breath, sweating, nausea, and vomiting. The pain is widespread, involving the precordial region, sternal area, left shoulder, and left arm. In contrast, the primary symptom of anterior wall myocardial infarction is chest pain, which is usually limited to the sternal area, left shoulder, and left arm.

3. Electrocardiogram (ECG) Findings

In anterior septal myocardial infarction, ECG typically shows ST-segment elevation in leads V1, V2, V3, and V4, often accompanied by the appearance of Q waves. In anterior wall myocardial infarction, ECG commonly shows ST-segment elevation in leads V2, V3, and V4.

Besides the above differences, distinctions also exist in prognosis, treatment methods, and medications used. During the illness, patients should ensure adequate rest, maintain sufficient sleep, and avoid excessive fatigue to prevent worsening of symptoms.