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A new method for uncoiling knots in angiographic tubing

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Summary

Techniques for uncoiling knots formed in catheters during angiography have been the subject of several previous reports. A new technique for catheter unknotting is presented, based on the use of graded flexibility guidewires. The application of this graded taper method appears particularly pertinent to uncoiling softer, narrow-caliber, adversely looped catheters. Moreover, the mechanisms of knot uncoiling in the previous reports are reassessed and their imprecisions corrected.

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Authors and Affiliations

  1. Neuroradiology Division, Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA

    Z. L. Deeb, H. S. Ahn & A. E. Rosenbaum

  2. Presbyterian-University Hospital, Pittsburgh, Pennsylvania, USA

    Z. L. Deeb, H. S. Ahn & A. E. Rosenbaum

Authors
  1. Z. L. Deeb
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  2. H. S. Ahn
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  3. A. E. Rosenbaum
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Deeb, Z.L., Ahn, H.S. & Rosenbaum, A.E. A new method for uncoiling knots in angiographic tubing. Neuroradiology 20, 197–201 (1980). https://doi.org/10.1007/BF00336683

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  • DOI: https://doi.org/10.1007/BF00336683

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