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- 1.
1 Dacron catheters have an intermediate sheath in which interwoven Dacron fibers are employed. Considerable stiffness, reduced deformation index (curve memory) as well as a good torsional ratio (transmission from the body to the tip of the torsion carried out by operator's hand) characterize this material. At body temperature this material tends to soften (bioflexibility) within 20–30 min, making it less traumatic when it must be placed for a long time inside cardiac structures such as, for instance, the coronary sinus. Polyurethane catheters have a steel net which enables good axial (suitability to transmit axial strength along the catheter axis) and torsional control. Furthermore, these catheters are rather flexible, and their distal segments lack a metal reinforcement making the tip more flexible and reducing the risk of causing trauma with the catheter. Since polyurethane catheters have high thermal endurance, they do not tend to soften and their maneuvrability characteristics tend to remain constant. In general polyurethane catheters cost much less than dacron catheters.
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© 2008 Springer-Verlag London Limited
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Casella, M., Russo, A.D. (2008). The Electrophysiologic Study. In: An Atlas of Radioscopic Catheter Placement for the Electrophysiologist. Springer, London. https://doi.org/10.1007/978-1-84800-227-2_3
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DOI: https://doi.org/10.1007/978-1-84800-227-2_3
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