OBJECTIVES: The aim of this study was to evaluate the efficacy and safety of the PRONTO® extraction catheter to aspirate thrombus during percutaneous coronary intervention (PCI) in patients presenting with ST-segment elevation acute myocardial infarction (STEMI) METHODS: Twenty-eight unselected patients (60% male, age 60.5 ± 11.7 years) were treated with PCI with manual thrombus aspiration using the PRONTO® catheter. All the patients had acute myocardial infarction with ST-elevation (STEMI), and presented up to 12 hours after the onset of clinical symptoms. Were analyzed myocardial blush grade (MBG), reduction grade of epicardical distal flow (TIMI), distal embolization, ST resolution and procedure time. RESULTS: The patients select treated with thrombectomy during primary angioplasty for acute myocardial infarction did not show distal or side branch occlusion, slow flow or no-reflow and had evidence of microvascular reperfusion. CONCLUSION: The use of PRONTO® thrombectomy catheter is feasible and safe, without significant increase the procedural time. The use of this device was associated with indirect signs of successful reperfusion at microvascular level.
Thrombectomy, instrumentation; Myocardial infarction; Angioplasty, transluminal, percutaneous coronary
