The study is a prospective cohort study conducted in Tianjin Chest Hospital, China. Patients with saphenous vein graft disease after coronary artery bypass graft, and planning for receiving percutaneous coronary intervention after virtual histology intravascular ultrasound will be enrolled between May 2017 and April 2019. These subjects will be followed up at 1, 6 and 12 months post-operation of PCI to assess the short-term and long-term effect.
Study Type
OBSERVATIONAL
Enrollment
120
Patients with saphenous vein graft disease will be examined using virtual histology intravascular ultrasound, and treated with percutaneous coronary intervention. Then they will be followed up at 1, 6 and 12 months.
Tianjin Chest Hospital
Tianjin, Tianjin Municipality, China
RECRUITINGIncidence of major adverse cardiovascular events
Cardiac death, myocardial infarction, target lesion revascularization and target vessel revascularization are all major adverse cardiovascular events
Time frame: after PCI for saphenous vein graft disease (SVGD) in one year
Thrombolysis In Myocardial Infarction (TIMI) flow in 24 hours after PCI for the SVGD
Time frame: 24 hours after PCI for the SVGD
Number of slow reflow, no reflow or distal embolization of the saphenous vein graft after PCI on the basis of Corrected TIMI Frame Count (TFC)
Time frame: 24 hours after PCI for the SVGD
Success rate of PCI
The residual stenosis of SVG is less than 50% and achieving TIMI flow 3
Time frame: 24 hours after PCI for the SVGD
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