ABSTRACT
Successful percutaneous coronary intervention (PCI) by balloon angioplasty (BA) and stenting relies on the expansion of the atheromatous vessel and/or plaque fissuring. Calcified and fibrous atheromas resist balloon and stent dilatation, resulting in non-uniform expansion of eccentric lesions and under- or non-expansion in concentric lesions. The console controls and monitors the rotational speed of the burr and the turbine's gas supply. The compressed gas, foot pedal and advancer are all connect to the console. The black fibre optic cable from the advancer is connected to the front of the console. Connecting the drive shaft of the burr to the advancer requires the advancers drive shaft is exposed, by unlocking and fully sliding forward the black advancer knob. Increased platelet aggregability is associated with reduced coronary perfusion and symptomatic ischaemia. Balloon dilation of aorto-ostial stenoses is often complicated by incomplete balloon dilation and/or vessel recoil, particularly in calcified or fibrotic lesions.
