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Initial experience with the Palmaz stent for aortoiliac stenoses
Y G Wolf1, R A Schatz, H J Knowles
1Division of Vascular Surgery, Scripps Clinic and Research Foundation, La Jolla, California 92037.
Annals of Vascular Surgery
|May 1, 1993
Summary
The Palmaz stent effectively treated aortoiliac artery stenoses and occlusions, significantly reducing pressure gradients and resolving symptoms in most patients. Long-term follow-up showed a manageable recurrence rate, supporting its use in vascular interventions.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Biomedical Engineering
Background:
- Aortoiliac artery disease presents significant challenges in vascular reconstruction.
- Endovascular techniques, including stenting, offer an alternative to traditional surgical repair.
Purpose of the Study:
- To evaluate the efficacy and safety of the Palmaz stent in treating aortoiliac artery stenoses and occlusions.
- To assess the outcomes of Palmaz stent placement in conjunction with surgical procedures for complex lower extremity arterial disease.
Main Methods:
- Retrospective review of 37 consecutive patients treated with Palmaz stents in the aortoiliac arteries.
- Analysis of procedural success, clinical outcomes, and imaging findings at follow-up.
- Inclusion of patients undergoing combined endarterectomy and stenting for common femoral and iliac obstructions.
Main Results:
- Significant reduction in stenosis from 57% to 1% (p < 0.01) and pressure gradients from 45 mmHg to 1.3 mmHg (p < 0.01).
- Symptom resolution or improvement in 35 out of 37 patients.
- A 16% recurrence of symptoms at a mean 12-month follow-up, with 11% symptomatic restenosis on routine arteriography.
Conclusions:
- The Palmaz stent demonstrates efficacy in managing aortoiliac stenoses and occlusions.
- Intraoperative use of Palmaz stents in conjunction with surgical correction of outflow is effective.
- Close multidisciplinary follow-up is recommended for patients treated with Palmaz stents.