In a study of 60 patients, 7f launcher guide catheters were used in complex transradial pci procedures.The primary endpoint was procedural success which was defined as completion of the planned procedure through the initially selected radial access route.There were two procedural failures: one case of unsuccessful cto-pci of the right coronary artery and one case requiring conversion to femoral access due to the presence of extreme subclavian tortuosities.There were three vascular access-site complications including two type ii hematomas and one uncomplicated guide catheter-induced brachial dissection.Doppler ultra-sound imaging of the radial artery at 1 month was available in 62 out of 64 radial access with three documented cases of radial artery occlusion.One patient was lost to follow-up and another patient died from cardiovascular cause after hospital discharge, but before 1-month follow-up.
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