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The AVE Micro Coronary Stent as a Bailout Device
1Department of Cardiology, Royal Brompton Hospital, London, SW3 6NP, United Kingdom.
Insights
The AVE Micro coronary stent effectively manages abrupt vessel closure after percutaneous transluminal coronary angioplasty (PTCA). This bailout strategy shows a high success rate and acceptable complication profile for coronary interventions.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Medical Devices
Background:
- Vessel closure after percutaneous transluminal coronary angioplasty (PTCA) is a significant cause of patient morbidity and mortality.
- Effective management strategies are crucial for improving outcomes in patients experiencing abrupt or threatened abrupt vessel closure.
Purpose of the Study:
- To evaluate the safety and efficacy of the AVE Micro coronary stent in bailout situations following PTCA.
- To assess the outcomes of patients treated with the AVE Micro stent for abrupt or threatened abrupt vessel closure.
Main Methods:
- A retrospective analysis of 86 consecutive patients who received the AVE Micro coronary stent for abrupt or threatened abrupt vessel closure post-PTCA between January 1995 and January 1996.
- Data collected included patient demographics, clinical presentation, procedural details, and short-term clinical outcomes.
Main Results:
- A total of 109 AVE Micro stents were implanted in 86 patients.
- The procedural success rate was high, with only one procedural failure.
- Key complications included subacute stent thrombosis (7%), major vascular complications (4%), and a 30-day event-free survival rate of 72%.
Conclusions:
- The AVE Micro coronary stent is an effective device for managing abrupt and threatened abrupt vessel closure following PTCA.
- Its use in bailout scenarios demonstrates a high procedural success rate and a relatively low complication rate, supporting its role in interventional cardiology.
Abstract:
Vessel closure following percutaneous transluminal coronary angioplasty (PTCA) remains an important source of morbidity and mortality. In this study we have evaluated the AVE Micro stent in the management of the bailout situation following angioplasty. All patients with abrupt vessel closure or threatened abrupt vessel closure managed with this device were included in the study population. Between January 1995 and January 1996, 86 consecutive patients with abrupt or threatened abrupt vessel closure following PTCA were managed with the AVE Micro coronary stent. Fifty-seven patients were male, the mean age was 60 years (range 32-76). Three patients had acute myocardial infarction and 58 had unstable angina. Six had a left ventricular ejection fraction of less than 30%. A total of 109 stents were implanted in 86 patients. There was one procedural failure. One patient died following emergency CABG. Emergency CABG was required in an additional two cases, both had a significant rise in CK (MB). Non-Q-wave myocardial infarction occurred in an additional five patients (6%). Subacute stent thrombosis occurred in six cases (7%). Major vascular complications occurred in three patients (4%), necessitating surgical repair of the femoral artery in two. Sixty-one patients (72%) had a 30 day event-free survival. The mean duration of hospital admission was 7 days (range 4-30 days). In conclusion, the AVE Micro coronary stent is an effective device in the management of abrupt and threatened abrupt vessel closure following PTCA. Its use is associated with a high procedural success rate and a relatively low complication rate.