The technique of manipulating the guidewire alone during PCI surgery is complex enough to keep doctors discussing at length.
Alright, the next step is to advance the contrast catheter along the guidewire. Jin Tianyu, who advises the juniors to take it slow, proceeds much more swiftly himself. With the juniors having promised to pave the way for him, he has roughly figured out this patient's vascular condition and can speed up without wasting time.
Catheter in position, connect the syringe at the tail end, retract, and exhaust air.
Connect the three-way valve and completely exhaust air again, to prevent air from entering the coronary arteries, causing fatal air embolism.
