Similarly , no significant differences were observed for infarct size ( 8.6 % LV ; IQR : 4.0 to 14.7 vs. 7.4 % LV ; IQR : 4.1 to 13.1 ; p = 0.46 ) , myocardial salvage index ( 63.3 ; IQR : 35.4 to 87.2 vs. 65.6 ; IQR : 46.9 to 82.6 ; p = 0.45 ) , or angiographic parameters such as blush grade ( p = 0.63 ) and Thrombolysis In Myocardial Infarction flow grade ( p = 0.66 ) .