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Published on: June 11, 2019

The feasibility and safety of routine thrombus aspiration in patients with non-ST-elevation myocardial infarction

Pieter J Vlaar1, Gilles F Diercks, Tone Svilaas

  • 1Department of Cardiology, University Medical Centre Groningen, University of Groningen, Thoraxcenter, Groningen, The Netherlands. p.j.j.vlaar@thorax.umcg.nl

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|November 21, 2008
PubMed

Insights

Manual thrombus aspiration is a feasible and safe procedure for patients with non-ST-elevation myocardial infarction (NSTEMI) undergoing percutaneous coronary intervention (PCI). This approach effectively retrieves thrombotic material, improving myocardial reperfusion.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Medicine

Background:

  • Microvascular obstruction in acute coronary syndromes can result from embolization of atherothrombotic material.
  • Manual thrombus aspiration improves myocardial reperfusion in ST-elevation myocardial infarction patients undergoing PCI.
  • Limited data exists on thrombus aspiration efficacy in non-ST-elevation myocardial infarction (NSTEMI).

Purpose of the Study:

  • To evaluate the feasibility and safety of manual thrombus aspiration.
  • To assess its effectiveness in NSTEMI patients undergoing PCI.

Main Methods:

  • Prospective cohort study of 70 NSTEMI patients undergoing PCI.
  • Manual thrombus aspiration using the Export Aspiration Catheter.
  • Histopathological analysis of aspirated material.

Main Results:

  • Effective thrombus aspiration in 83% of patients.
  • Significant reduction in TIMI-thrombus score (40% to 7%).
  • Increased rate of TIMI-flow 3 (36% to 66%) and improved myocardial blush grades.

Conclusions:

  • Manual thrombus aspiration is feasible and safe for most NSTEMI patients.
  • The procedure is associated with a high rate of thrombotic material retrieval.
  • This technique shows promise for improving outcomes in NSTEMI patients undergoing PCI.
Abstract

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