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Double protection in patients with a massive thrombus in the infarct-related artery - a single-center retrospective
Piotr Chodór1, Grzegorz Honisz1, Krzysztof Wilczek2
1Silesian Center for Heart Diseases, Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Medical University of Silesia, Zabrze, Poland.
Insights
Double protection (DP) using manual thrombectomy with a distal protection device is a safe and feasible approach for patients experiencing ST-segment elevation myocardial infarction (STEMI) with massive thrombus (MT). Further studies are needed to confirm its efficacy in improving outcomes for these critical cardiac events.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Medicine
Background:
- ST-segment elevation myocardial infarction (STEMI) involves thrombus formation on atherosclerotic plaques.
- Massive thrombus (MT) in STEMI can lead to severe complications like extensive myocardial infarction (MI) and impaired reperfusion.
- Current treatments for coronary thrombi exist, but the efficacy of double protection (DP) combining manual thrombectomy (MTH) with a distal protection device (DPD) remains unevaluated.
Purpose of the Study:
- To evaluate the outcomes of the double protection (DP) strategy in patients presenting with STEMI and MT.
- To assess the safety and feasibility of DP as a treatment for STEMI with MT.
Main Methods:
- A study included fourteen patients diagnosed with STEMI and MT.
- All patients underwent primary percutaneous coronary intervention (PPCI) utilizing the DP technique.
- DP involved manual thrombectomy (MTH) combined with a distal protection device (DPD).
Main Results:
- Inferior MI was prevalent, affecting 12 (85.8%) patients.
- Stent implantation was performed in 13 (92.8%) patients.
- A high thrombus burden was observed, with Thrombolysis In Myocardial Infarction (TIMI) Thrombus Grade 5 in 11 (78.6%) and Grade 4 in 3 (21.4%) patients, and a median thrombus length of 39.1 mm.
- Complete reperfusion (TIMI flow 3) was achieved in 11 (78.6%) patients, with TIMI flow 2 in 3 (21.4%).
- Myocardial Blush Grade 3 was noted in 5 (35.7%) patients with TIMI flow 3.
- Significant ST-segment elevation resolution (>50%) occurred in 13 (92.8%) patients.
- No in-hospital adverse events such as myocardial rupture, stroke, or death were reported.
Conclusions:
- The double protection (DP) strategy, incorporating MTH and DPD, is a safe and feasible procedural option for managing patients with STEMI and MT.
- While initial results suggest safety, further extensive research and clinical trials are necessary to definitively establish the efficacy of DP in improving long-term patient outcomes.
Introduction:
ST-segment elevation myocardial infarction (STEMI) is associated with thrombus formation on a ruptured or ulcerated atherosclerotic plaque. The consequences of a massive thrombus (MT) may include lack of reperfusion, extensive myocardial infarction (MI) and its complications. Although there are various treatment options for patients with coronary thrombi, double protection (DP) - manual thrombectomy (MTH) with a distal protection device (DPD) - has not been tested yet.
Aim:
To present DP outcomes in the treatment of patients with STEMI and MT patients.
Material And Methods:
Fourteen patients with STEMI and MT were included in the study. Those patients underwent primary percutaneous coronary intervention (PPCI) with DP.
Results:
Inferior MI was found in 12 (85.8%) patients. Stents were implanted in 13 (92.8%) patients. Thrombolysis In Myocardial Infarction (TIMI) Thrombus Grade 5 was present in 11 (78.6%) patients and Grade 4 in 3 (21.4%) patients. The median thrombus length was 39.1 mm. Complete reperfusion (TIMI flow 3) was observed in 11 (78.6%) patients and TIMI flow 2 in 3 (21.4%) patients. Myocardial Blush Grade (MBG) was used in patients with TIMI flow 3 and Grade 3 was found in 5 (35.7%) patients. Resolution in ST-segment elevation > 50% was obtained in 13 (92.8%) patients. No myocardial rupture, stroke, or death occurred during hospitalization.
Conclusions:
DP in MT patients is a safe and feasible procedure. However, further observations and studies are needed to assess the efficacy of this method.
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