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Histologic Comparison of Vibrating Guidewire with Conventional Guidewire Technique in an Experimental Coronary In Vivo Model

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Abstract

Purpose: To compare the damage caused by vibrating guidewire manipulation and conventional guidewire manipulation of soft coronary wires in normal sheep coronary arteries. Methods: Using an intact sheep model the two methods of passing a coronary guidewire down a normal coronary artery under fluoroscopic screening control were studied. The resulting arterial damage caused by the two techniques was studied histologically. The severity of damage was scored from 1 (no damage) to 4 (severe damage) and expressed as: (a) percentage of damaged sections, (b) mean damage score per section and (c) percentage of sections suffering the most severe degree of damage (scores 3 and 4). Results: One hundred and sixty-eight sections were studied. The percentage of damaged sections was lower in the vibrating guidewire group (p = 0.004). The mean damage score and the percentage of sections with a damage score of 3 or 4 were smaller in the vibrating guidewire group than in the conventional guidewire manipulation group (p = 0.001 and p = 0.009, respectively). Conclusions: Both methods of guidewire manipulation cause identifiable vascular damage. The extent and severity of damage appear greater when the guidewire is manipulated manually.

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Acknowledgements

This work was supported by a British Heart Foundation project grant (PG/94034).

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Authors and Affiliations

  1. Department of Cardiology, School of Medicine, University of Ioannina, GR 451 10 Ioannina, Greece

    Christos S. Katsouras, Lampros K. Michalis, Vassilios Giogiakas, Dimitrios Nikas, Gerasimos Massouras & Dimitris A. Sideris

  2. Department of Pathology, School of Medicine, University of Ioannina,, Ioannina, Greece

    Vassiliki D. Malamou-Mitsi & Pavlos Dallas

  3. Department of Anesthesiology,, University Hospital of Ioannina, Ioannina, Greece

    Demetra Niokou

  4. Department of Radiology, School of Medicine, University of Crete, Heraklion,, Heraklion, Greece

    Dimitrios K. Tsetis

  5. Department of Radiology, School of Medicine, University of Bristol, Bristol, UK

    Michael R. Rees

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  1. Christos S. Katsouras
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  2. Lampros K. Michalis
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  3. Vassiliki D. Malamou-Mitsi
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  5. Vassilios Giogiakas
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  6. Dimitrios Nikas
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  7. Gerasimos Massouras
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  8. Pavlos Dallas
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  9. Dimitrios K. Tsetis
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  10. Dimitris A. Sideris
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  11. Michael R. Rees
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Correspondence to Lampros K. Michalis.

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Katsouras, C., Michalis, L., Malamou-Mitsi, V. et al. Histologic Comparison of Vibrating Guidewire with Conventional Guidewire Technique in an Experimental Coronary In Vivo Model . CVIR 26, 454–458 (2003). https://doi.org/10.1007/s00270-003-2667-0

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