Application of drug-coated balloon in interventional treatment of the ostium lesions of LCX

Objective To study the application of drug-coated balloon in treating the ostium lesions of LCX during percutaneous coronary intervention. Methods The 12 patients with the ostium lesions of LCX admitted to our hospital from October 2015 to July 2017 were included in this study.We use drug-coated balloon(DCB)to treat the LCX lesions during PCI, the patients underwent coronary angiography immediately after surgery and were followed up after 6 months of operation.10 patients(83.3%)underwent coronary angiography 6 months later.The MACE were recorded. Results The success rate of PCI was 100%.No complication occured during and after operation.There were no MACE events in the follow up, The minimal lumen diameters of the LCX increased from(0.31±0.12)mm before operation to(2.86±0.43)mm after operation(P<0.001). No MACE occurred in 6 months after operation; the coronary angiography 6 months later show there were no coronary restenosis in all cases.The diameters of the LCX were(2.93±0.39)mm. Conclusions Drug-coated balloon is safe and effective in treating the ostium lesions of LCX during PCI. Key words: Drug coated balloon; Coronary artery disease; Angioplasty, transluminal, percutaneous coronary