Chronic total occlusion(CTO)is the complete obstruction of a coronary artery for>3 months,combined with thrombolysis in myocardial infarction(TIMI)flow grade 0.Percutaneous coronary intervention(PCI)is widely used ...Chronic total occlusion(CTO)is the complete obstruction of a coronary artery for>3 months,combined with thrombolysis in myocardial infarction(TIMI)flow grade 0.Percutaneous coronary intervention(PCI)is widely used to treat CTO but is less used than coronary artery bypass graft surgery(CABG).[1]However,PCI for CTO may increase the exposure of patients and operating physicians to radiation compared with non-CTO PCIs,[2]and higher radiation exposure is linked to long-term adverse outcomes.[3]PCI operators are exposed to significantly less radiation than patients during each procedure;however,repeated exposure during a lifetime may cause health problems.Therefore,reducing the exposure of PCI cardiologists to radiation without compromising the surgical success rate and clinical outcomes of patients is crucial.A low frame rate(LFR)protocol and/or selective fluoroscopy image storage decreases the exposure of PCI operators and patients to radiation during PCIs.The objective of this study is to evaluate the safety and efficacy of an LFR protocol for managing CTO patients.展开更多
基金supported by a grant from Subject on the Cadre Health Care of Sichuan Province(No.2019-216)。
文摘Chronic total occlusion(CTO)is the complete obstruction of a coronary artery for>3 months,combined with thrombolysis in myocardial infarction(TIMI)flow grade 0.Percutaneous coronary intervention(PCI)is widely used to treat CTO but is less used than coronary artery bypass graft surgery(CABG).[1]However,PCI for CTO may increase the exposure of patients and operating physicians to radiation compared with non-CTO PCIs,[2]and higher radiation exposure is linked to long-term adverse outcomes.[3]PCI operators are exposed to significantly less radiation than patients during each procedure;however,repeated exposure during a lifetime may cause health problems.Therefore,reducing the exposure of PCI cardiologists to radiation without compromising the surgical success rate and clinical outcomes of patients is crucial.A low frame rate(LFR)protocol and/or selective fluoroscopy image storage decreases the exposure of PCI operators and patients to radiation during PCIs.The objective of this study is to evaluate the safety and efficacy of an LFR protocol for managing CTO patients.
