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Published on: April 17, 2021
Successful treatment by recross IVUS-guided reentry in coronary total occlusion: STRIVE-CTO
Claudiu Ungureanu1, Mihai Cocoi2, Giuseppe Colletti3
1Cardiovascular Jolimont Hôpital, La Louvière, Belgium.
Insights
This study presents a novel technique for complex coronary total occlusion (CTO) interventions using a dual microcatheter and intravascular ultrasound. This method enhances precision and safety in challenging CTO recanalization cases.
Area of Science:
- Interventional Cardiology
- Cardiovascular Interventions
- Medical Device Technology
Background:
- Percutaneous treatment of complex coronary total occlusions (CTO) remains challenging, especially when antegrade or retrograde approaches fail.
- Antegrade dissection reentry is a bailout strategy but has limitations, including system delivery issues and hematoma complications.
- Existing techniques struggle with precise reentry into the true lumen, impacting CTO recanalization success.
Observation:
- A new technique combines the Recross MC Dual Microcatheter with real-time intravascular ultrasound (IVUS) for CTO interventions.
- This approach allows for accurate selection of the reentry zone.
- It enables precise and controlled puncturing into the true lumen.
Findings:
- The integrated Recross MC Dual Microcatheter and IVUS guidance facilitates refined re-wiring in CTO interventions.
- This method improves the accuracy of reentry zone selection.
- It leads to precise, controlled puncturing into the true lumen for successful CTO recanalization.
Implications:
- This innovative technique offers a safer and more predictable solution for complex CTO recanalization.
- It addresses limitations of current antegrade dissection reentry methods.
- The approach has the potential to improve outcomes for patients with challenging coronary artery disease.
Abstract:
Complex coronary total occlusion (CTO) lesions percutaneous treatment, especially in contexts where traditional antegrade strategies have failed and retrograde approaches are unsuitable, due to lack of interventional collaterals or high risk of complications, presents a considerable challenge for interventional cardiologists. Antegrade dissection reentry has historically offered a bailout strategy in cases with unsuccessful antegrade wire escalation. Nevertheless, the technique-whether employing dual-lumen microcatheters or dedicated reentry devices, such as Stingray-encounters several limitations, particularly when the delivery of the system is not possible, or extraplaque large hematomas, which complicates reentry. This paper introduces an innovative technique combining the use of the Recross MC Dual Microcatheter with real-time intravascular ultrasound guidance for refined re-wiring in CTO interventions. This approach facilitates accurate reentry zone selection and ensures precise, controlled puncturing into the true lumen, thereby enabling safe and predictable CTO recanalization.
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