A 95% stenosis of the middle portion of the gyratory branch is very serious. A 95% stenosis of the middle portion of the circumflex branch, generally the middle portion of the circumflex branch of the coronary arteries, is very likely to be secondary to a myocardial infarction. Coronary arteries are arterial vessels that provide blood and oxygen supply to the heart, and can be divided into three main branches: the anterior descending branch, the circumflex branch, and the right coronary artery. The coronary arteries are divided into three main branches: the anterior descending branch and the right coronary artery. The coronary arteries mainly supply blood and oxygen to the left atrium, the upper anterior wall of the left ventricle, the lateral wall of the left ventricle, the left half or all of the diaphragmatic surface of the heart, and the papillary muscles in the posterior part of the mitral valve. With 95% stenosis, the left atrium, the upper anterior wall of the left ventricle, the lateral wall of the left ventricle, and the diaphragmatic surface of the heart are ischemic and hypoxic, and acute infarction may occur, resulting in ischemic necrosis of the myocardium in these areas. Therefore, in addition to medication, 95% stenosis of the rotary branch can be treated with surgery to place a stent to eliminate the stenosis of the rotary branch and restore the normal blood and oxygen supply to the rotary branch, and it is necessary to adhere to the use of aspirin, clopidogrel and other drugs for antiplatelet therapy after the surgery. The person with 95% of the stenosis of the middle part of the gyratory branch needs to be actively examined in the hospital and reasonably follow the doctor’s instructions for treatment.