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Direct coronary stenting versus predilatation followed by stent placement
Martin Brueck1, Dierk Scheinert, Alois Wortmann
1University of Erlangen-Nuernberg, Department of Cardiology, Erlangen, Germany. martinbrueck@t-online.de
The American Journal of Cardiology
|November 27, 2002
Summary
Direct stenting without balloon predilation offers a feasible and safe approach for coronary lesions. This method reduces procedure time, costs, and radiation, leading to lower restenosis and revascularization rates at six months.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Devices
Background:
- Direct stenting (DS) bypasses balloon predilation, potentially improving procedural efficiency and patient outcomes.
- Conventional stenting involves balloon angioplasty before stent deployment.
Purpose of the Study:
- To compare the immediate and long-term clinical and angiographic outcomes of direct stenting versus stenting after balloon predilation.
Main Methods:
- A randomized trial involving 335 symptomatic patients with coronary lesions.
- Patients were assigned to either direct stenting (n=171) or stenting after predilation (n=164).
- Exclusion criteria included excessive calcification, severe tortuosity, or occluded vessels.
Main Results:
- Direct stenting showed significantly shorter procedural duration, reduced radiation exposure, less contrast dye usage, and lower costs.
- Immediate angiographic results and in-hospital outcomes were similar between groups.
- At 6-month follow-up, direct stenting was associated with lower rates of angiographic restenosis (20% vs. 31%) and target lesion revascularization (18% vs. 28%).
Conclusions:
- Direct stenting is feasible and safe for selected coronary lesions.
- Compared to conventional stenting with predilation, direct stenting leads to improved procedural efficiency and reduced restenosis and revascularization rates at six months.