Percutaneous Introducibility of the Expandable Vascular Sheath System and Injury Potential of Balloon-Assisted Thrombectomy: Preliminary In Vivo Results
- Klinik fuer Diagnostische Radiologie, Christian-Albrechts-Universitaet Kiel, Arnold Heller Strasse 9, D-24105 Kiel (Germany)
- Department of Pathology and Laboratory Medicine, VA Medical Center, 3350 Lojolla Village Drive, San Diego, CA 92161 (United States)
- Department of Radiology, University of California, 225 W. Dickinson St., San Diego, CA 91203 (United States)
Purpose: To test the percutaneous introducibility of the expandable vascular sheath (EVS) system and the safety of percutaneous balloon-assisted thrombectomy. Methods: The EVS was inserted directly (n= 9) or through a 9.5 Fr regular vascular introducer sheath (n= 9) into the femoral arteries and veins and carotid arteries in four dogs (18-21 kg). Balloon-assisted thrombectomies were simulated in iliac arteries. Histologic examinations were done at sites of funnel deployment immediately (n= 4) and 25 days (n= 8) after the intervention. Results: The EVS was successfully introduced into six of nine vessels by a direct percutaneous approach. Balloon-assisted thrombectomy using the EVS device caused localized intimal denudation, disruption of the internal elastic lamina, and mild hemorrhages into the media; one arterial dissection at the site of funnel deployment was seen. All indirect insertions and funnel deployments were successful. Twenty-five days after the experiments, intimal hyperplasia was noted in all cases. Conclusion: Percutaneous balloon-assisted thrombectomy may cause mild vascular injuries. Direct percutaneous introduction of the EVS device cannot be recommended yet.
- OSTI ID:
- 21080349
- Journal Information:
- Cardiovascular and Interventional Radiology, Vol. 22, Issue 1; Other Information: DOI: 10.1007/s002709900327; Copyright (c) 1999 Springer-Verlag New York Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 0174-1551
- Country of Publication:
- United States
- Language:
- English
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