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Coronary stent in percutaneous transluminal coronary angioplasty of


Believe that the application of PTCA coronary stent surgery should note the following points: ① coronary stent the right choices, too Xiao Yi slip too much can damage the blood vessels, its size is closely related with the later narrow,[link widoczny dla zalogowanych], generally speaking with the target vessel diameter and stent the ratio of the smaller arteries, the higher the rate of restenosis features,[link widoczny dla zalogowanych], choose the right has a recoil of the guiding catheter is very important conditions should be equipped with Amplaz type guiding catheter, guide wire placed distal target should be placed precisely in order to facilitate the successful stand up to the target site . ④ stent balloon filling, should refer to the pressure recommended by the stent,[link widoczny dla zalogowanych], generally 8 to 10 atm is appropriate, in order to facilitate stent expansion, the pressure is not too large, or cause blood vessels to the end of dissection. pressurized filling time 2O seconds is appropriate. ⑤ coronary stent placement biggest problem is acute or subacute stent thrombosis, so anticoagulation therapy should be positive. preoperative aspirin and dipyridamole, patients should spare urokinase or streptokinase and heparin therapy given to patients (method with PTCA), after intravenous infusion of heparin per hour rate 1000U, and taking warfarin, warfarin disabled after the commencement of heparin, and continued about six months with warfarin,[link widoczny dla zalogowanych], the application process should pay close attention to changes in blood coagulation system. ⑥ signs of postoperative bleeding should be closely observed, mainly for bleeding complications week or stent thrombosis, a large number of applications because anticoagulants can cause bleeding puncture Department, has been reported to occur within the individual leek and brain hemorrhage,[link widoczny dla zalogowanych], 3 cases of this group, only the Ministry of deer thigh puncture bleeding, hematoma, bleeding more than other parts did not occur.