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(Circulation. 1963;27:758.)
© 1963 American Heart Association, Inc.

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Newer Techniques of Transseptal Left-Heart Catheterization

CONSTANTIN COPE M.D.¹

¹ From the Veterans Administration Medical Teaching Group Hospital and the University of Tennessee College of Medicine, Memphis, Tennessee.

1. 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.