1 Department of Cardiology
2 Department of Radiology
3 Department of Cardiology Hospital for Sick Children Toronto, Canada
The publication of a paper describing a method for catheterisation of the pulmonary artery in transposition of the great arteries1 prompts the preliminary report of a technique which we have devised and used successfully in transposition of the great arteries with subpulmonic stenosis.
Following the study of the outflow tract of the left ventricle in transposition of the great arteries, a 0.045 I.D. Formocath B.D. catheter* was made out of Hanafee tubing with a curve as illustrated in Figure 1A. It is used as follows: a No. 6 Lehman catheter is passed to the left ventricle. A 220 cm guide wire is inserted through this with the nonflexible end foremost, into the apex of the left ventricle.