ABSTRACT
Percutaneous coronary intervention (PCI) has evolved significantly since its introduction in 1977, by Grüentzig et al.1 The balloon era demonstrated that the method was feasible and capable of effectively promoting myocardial revascularization, utilizing a non-surgical method. However, the balloon expansion was unpredictable in its intrinsic mode of action, and may promote some major complications as: spasm, coronary artery dissection, slow-or no-flow phenomena, coronary perforation, myocardial infarction (MI), a need for urgent coronary bypass surgery, and risk of death.2
