A blockage of the heart’s gyratory branch can cause ischemic necrosis of the heart muscle in the area supplied by the gyratory branch, and if the sinus node artery is emanating from the gyratory branch, it can cause severe bradycardia. Blockage of the heart’s gyratory branch is diagnosed by coronary angiography, which shows three large blood vessels in the heart, two on the left side, the anterior descending branch and the gyratory branch, and one on the right side, the right coronary artery. If the circumflex branch is acutely blocked, there will be obvious chest pain, typical symptoms of myocardial infarction, requiring emergency coronary angiography, plus stent implantation. The blockage of the circumflex branch is a chronic process, then the right coronary and anterior descending branch will send out side branches to supply the circumflex branch blood supply area, the patient may not be particularly obvious symptoms, do coronary arteriography, can be found in the circumflex branch occlusion of the situation can be adequately given to anticoagulant, antiplatelet therapy, temporarily do not consider the interventional surgical treatment, but be sure to go to the regular hospital for cardiac rehabilitation therapy to further improve the The side-branch circulation.