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Stent thrombosis following the STAR technique in a complex RCA chronic total occlusion
Ilana Erlich1, Bradley H Strauss, Jagdish Butany
1The Roy and Ann Foss Cardiovascular Research Program, Terrence Donnelly Heart Center, St. Michael's Hospital, Toronto, Ontario, Canada.
Insights
Extensive subintimal stenting for chronic total occlusion (CTO) can lead to acute stent thrombosis and sudden death. Careful technique selection is crucial for complex coronary interventions.
Area of Science:
- Cardiovascular Interventions
- Interventional Cardiology
- Vascular Surgery
Background:
- Chronic total occlusions (CTOs) of the coronary arteries present a significant challenge in interventional cardiology.
- The STAR technique offers a novel approach for crossing challenging CTOs.
- Drug-eluting stents are commonly used to treat coronary artery disease.
Observation:
- A young woman with a symptomatic RCA CTO underwent successful recanalization using the STAR technique.
- Four drug-eluting stents were deployed during the procedure.
- The patient experienced sudden death 15 hours post-procedure.
Findings:
- Autopsy revealed extensive subintimal placement of the deployed stents in the proximal and mid RCA.
- Acute stent thrombosis within the subintimal stents was identified as the cause of sudden death.
- The distal portion of the stented vessel remained intraluminal.
Implications:
- This case underscores the critical risks associated with extensive subintimal stenting in CTO interventions.
- It highlights the potential for catastrophic complications, including acute stent thrombosis and sudden cardiac death.
- Judicious application and careful technique are paramount when employing novel methods for complex CTO revascularization.
Abstract:
Four drug-eluting stents were deployed in the right coronary artery (RCA) of a symptomatic young woman who presented with a chronic total occlusion (CTO) of the RCA. The occlusion was successfully crossed using the recently described STAR technique. However, the patient died suddenly 15 hr later. Autopsy demonstrated a long segment of subintimal stenting in the proximal and mid RCA that was intraluminal in the distal vessel. Acute stent thrombosis in the subintimal stents was responsible for sudden death. This case highlights the potential risk of performing extensive subintimal stenting for CTO.
