Incidence of post myocardial infarction left ventricular thrombus formation in the era of primary percutaneous intervention and glycoprotein IIb/IIIa inhibitors. A prospective observational study

Cardiovasc Ultrasound. 2006 Apr 6;4:20. doi: 10.1186/1476-7120-4-20.


Background: Before the widespread use of primary percutaneous coronary intervention (PCI) and glycoprotein IIb/IIIa inhibitors (GP IIb/IIIa) left ventricular (LV) thrombus formation had been reported to complicate up to 20% of acute myocardial infarctions (AMI). The incidence of LV thrombus formation with these treatment modalities is not well known.

Methods: 92 consecutive patients with ST-elevation AMI treated with PCI and GP IIb/IIIa inhibitors underwent 2-D echocardiograms, with and without echo contrast agent, within 24-72 hours.

Results: Only 4/92 (4.3%) had an LV thrombus, representing a significantly lower incidence than that reported in the pre-PCI era. Use of contrast agents did not improve detection of LV thrombi in our study.

Conclusion: The incidence of LV thrombus formation after acute MI, in the current era of rapid reperfusion, is lower than what has been historically reported.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Angioplasty, Balloon, Coronary / statistics & numerical data*
  • Comorbidity
  • Echocardiography
  • Female
  • Humans
  • Incidence
  • Male
  • Michigan / epidemiology
  • Middle Aged
  • Myocardial Infarction / diagnostic imaging
  • Myocardial Infarction / epidemiology*
  • Myocardial Infarction / therapy*
  • Platelet Aggregation Inhibitors / administration & dosage*
  • Platelet Glycoprotein GPIIb-IIIa Complex / antagonists & inhibitors*
  • Prospective Studies
  • Risk Assessment / methods
  • Risk Factors
  • Thrombosis / diagnostic imaging
  • Thrombosis / epidemiology*
  • Ventricular Dysfunction, Left / diagnostic imaging
  • Ventricular Dysfunction, Left / epidemiology*


  • Platelet Aggregation Inhibitors
  • Platelet Glycoprotein GPIIb-IIIa Complex