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[A direct stent without predilatation. Our experience in 300 lesions]
J M de la Torre Hernández1, J F Riesco Riesco, F Rodríguez Entem
1Unidad de Hemodinámica y Cardiología Intervencionista, Hospital Universitario Marqués de Valdecilla, Santander.
Revista Espanola De Cardiologia
|June 16, 1999
Summary
Direct stenting, a technique without predilatation, offers a high success rate in selected patients. This approach reduces costs and procedural time while potentially lowering restenosis rates.
Area of Science:
- Interventional Cardiology
- Vascular Surgery
- Medical Device Technology
Background:
- The stent alone technique (direct stenting) aims to minimize costs and procedure duration.
- Potential benefits include avoiding abrupt vessel closure and reducing restenosis by limiting arterial injury.
Purpose of the Study:
- To evaluate the feasibility and outcomes of the stent alone technique.
- To assess immediate angiographic results and procedural complications.
Main Methods:
- 300 non-occlusive stenotic lesions in 230 patients were treated using stent implantation without predilatation.
- Lesions were selected based on specific criteria: reference vessel diameter ≥ 2.5 mm, absence of excessive tortuosity, calcification, length, or angulation.
Main Results:
- The stent alone technique was successful in 85% of lesions (256/300).
- Predilatation was necessary in 14.3% of lesions; stent embolization occurred in 5 patients with no clinical sequelae.
- Optimal outcomes were observed in type A or B1 lesions without moderate calcification, tortuosity, or angulation.
Conclusions:
- Direct stenting is a feasible strategy in carefully selected patients, achieving a high success rate.
- Ideal candidates have non-bifurcated lesions ≤ 90% stenotic, without moderate calcification, tortuosity, or angulation.