Primary percutaneous coronary intercession (PPCI) remains the treatment of decision since it is related with a huge decrease in bleakness and mortality. The points of this investigation is to analyze between collapsed inflatable and swell dilatation prior to stenting during essential PCI. The current investigation was relative examination that incorporate 60 patients determined to have STEMI and went through PPCI. Gathering 1 comprise of 30 patients went through flattened inflatable encouraged direct stenting DBDS technique.Group 2 comprise of 30 patients went through inflatable swelling prior to stenting. . The MACE rate during the collapsed expand method was essentially lower than MACE rate in inflatable swelling gathering (3.3% Vs 26.7%P value=0.011).The inconvenience rate was 13.3% in the emptied expand gathering while it was 43.3% in the inflatable expansion group.The no reflow rate and distal embolization rate after DBDS strategy was 6.7% while it was 26.7% after inflatable swelling procedure.The cardiovascular breakdown rate happened distinctly in one patient in the DBDS gathering while it happened in 6 patients in the inflatable swelling gathering. The DBDS method to encourage DS has all the earmarks of being basic, possible and safe. It fundamentally builds DS and could offer an option in contrast to PD and thrombectomy.