Thrombus Aspiration in STEMI Patients With High Thrombus Burden

Inclusion Criteria:

1. Age ≥ 18 years;

2. STEMI patients undergoing primary PCI within 12 hours after the onset of symptoms;

3. High thrombus burden after guidewire passes the lesion (TIMI thrombus grade ≥3);

4. Informed consent must be voluntary;

Exclusion Criteria:

1. Haemodynamic instability or cardiogenic shock;

2. After thrombolytic therapy;

3. The predicted survival time is less than 6 months due to non-cardiac disease;

4. History of coronary artery bypass grafting;

5. Participate in other researches within 30 days;

6. Preoperative gastrointestinal bleeding or contraindications to dual antiplatelettherapy;

7. Patients were considered unsuitable by other researchers.