The use of Teflon materials and maneuverable spring guides improves the feasibility and safety of transseptal left-heart catheterization.
May facilitate transseptal access in select cases; leaves open prospective validation against contemporary equipment.
Teflon tubing is ideally suited for transseptal catheterization because of its low coefficient of friction. 2. Catheterization of the left ventricle can be easily performed with a maneuverable spring guide. 3. A Teflon-tipped cannula and a tough, flexible, Teflon guide are used for percutaneous catheter insertions. 4. Safety measures used in transseptal puncture are described. 5. Simultaneous percutaneous insertion of a retrograde Teflon aortic catheter and the transseptal catheter permit transvalvular gradients to be obtained even when a diseased mitral or aortic valve cannot be crossed.
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Constantin Cope (1963) studied this question.
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