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1 Cardio-Pulmonary Laboratory, Department of Medicine, Mount Sinai Hospital, Miami Beach; and the Section of Cardiology, University of Miami School of Medicine, Coral Gables
The experience of this laboratory in transseptal left atrial catheterization is described together with details of the technical approach employed. Three hundred ninety successful left atrial punctures have been performed, 65 by the earlier Ross technic, and more recently 325 studies by the percutaneous Brockenbrough approach. Utilizing the latter technic, the left atrium can be entered in 99 per cent of the patients; the left ventricle can be catheterized from the left atrium in 94 per cent of the studies in which attempts are made to manipulate the catheter through the mitral valve. The complications encountered in this and other laboratories are discussed together with means of minimizing and preventing these untoward reactions. The position of transseptal left atrial puncture among the various left heart catheterization procedures is discussed.
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