PMC9481397_01
Coronary angiography showed a 75% stenosis of the left main coronary artery, 99% stenosis of the left ascending artery, 90% stenosis of the right coronary artery, and 75% stenosis of the atrioventricular branch.
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Preoperative CAG showed 75% stenosis of the left main coronary artery and 99% stenosis of the left ascending artery (LAD), which was worse compared to the patient's condition 6 months ago (90% stenosis of the right coronary artery and 75% stenosis of the atrioventricular branch) (Figure 1).
Emergent coronary angiography. Diffuse severe spasm of whole native coronary arteries (a). The internal mammary artery and great saphenous vein were patent (b).
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During this process, the ECG monitor showed ST elevation in lead II, and emergent CAG revealed patent grafts and diffuse severe spasms of the whole native coronary arteries (Figure 2).
Coronary spasm was still partially present, but flow gradually improved.
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As a result, coronary flow gradually improved, and the blood pressure increased (Figure 3).