Intracoronary thrombolysis and stentless primary percutaneous coronary intervention in an ectatic right coronary

George Kassimis1,2, Petros Faliagkas1, Polykarpos Pshochias2

  • 1Second Cardiology Department, Hippokration Hospital, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.

Future Cardiology
|December 10, 2020
PubMed

Insights

Intracoronary thrombolysis effectively restored blood flow in an ectatic right coronary artery with significant clot burden when thrombectomy failed. This approach offers a safe and effective treatment for ST-segment elevation myocardial infarction patients.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Medicine

Background:

  • ST-segment elevation myocardial infarction (STEMI) requires prompt restoration of coronary blood flow.
  • Ectatic coronary arteries present unique challenges in managing occlusive thrombus.
  • Micro-computed tomography (CT) can quantify thrombus burden in complex coronary anatomy.

Observation:

  • A 58-year-old male presented with inferior STEMI due to a mid-vessel occluded right coronary artery (RCA).
  • The RCA exhibited ectasia and a significant thrombus burden, confirmed by micro-CT.
  • Initial attempts at manual and 'mother-child' thrombectomy were unsuccessful in restoring flow.

Findings:

  • Guide catheter-directed intracoronary thrombolysis using low-dose tenekteplase successfully achieved Thrombolysis In Myocardial Infarction (TIMI) 3 flow in the RCA.
  • A stentless strategy was employed post-thrombolysis, leaving no angiographically significant stenosis.
  • The combined approach proved effective in resolving the occlusion.

Implications:

  • Intracoronary thrombolysis is a viable and effective alternative when mechanical thrombectomy fails in STEMI with ectatic arteries and large thrombus.
  • A stentless strategy can be safely utilized in selected STEMI cases, potentially reducing procedural complications.
  • This case highlights a successful treatment paradigm for complex coronary occlusions in STEMI.

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