Subendocardial myocardial infarction can be seen in any of the coronary arteries that are obstructed, and on this basis alone, it is not possible to determine the specific coronary artery that is obstructed.
Subendocardial myocardial infarction means that only the lateral 1/3 of the ventricular wall is involved, in which case the ECG does not show pathologic Q-waves, also known as a nonpenetrating myocardial infarction.
Coronary arteries include right coronary artery, left coronary artery, left anterior descending branch and other branches, any one of which may cause subendocardial myocardial infarction, and the clinical symptoms are basically identical.
Therefore, it is not possible to rely on this point to determine which coronary artery is obstructed, and the specifics need to be clarified in conjunction with the overall electrocardiogram performance, DSA and other tests.
Subendocardial infarction is a special type of myocardial infarction, and it is recommended to seek medical attention as soon as possible, and carry out standardized treatment under the guidance of the doctor to avoid delaying the condition.