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- Publisher
- The American Physiological Society
- Copyright
- Copyright © 1957 the American Physiological Society
- ISSN
- 8750-7587
- eISSN
- 1522-1601
- Publisher site
- See Article on Publisher Site
Abstract
of pulmonary physiology have been limited bv the inaccessibilitv of the pulmonary veins. They have been carmulated or catheterized for experimental studies by using the open-chest preparation (I), or by doing retrograde catheterizations from the systemic arterial circulation (2, 3). The open-chest preparation is unsatisfactory for many procedures, while the retrograde approach is relatively difficult and permits no selection of the pulmonary vein to be catheterized. The damage to the left side of the heart from such a technique can be serious (2) and prevents it from being endorsed as a satisfactory method for pulmonary venous catheterization. In the search for a more practical method for catheterizing the pulmonary veins and left heart chambers of dogs, postmortem studies revealed a relatively large sinus formed by the confluence of the pulmonary veins. So far as could be determined, the area was devoid of cardiac muscle and could not be considered as part of the left atrium proper. It was possible to enter the sinus with a probe and, by advancing it toward the heart, either enter the left atrium or proceed retrograde out a lower pulmonary vein. The close proximity of this ‘preatrial sinus’ to the carina suggested a
Journal
Journal of Applied Physiology – The American Physiological Society
Published: Sep 1, 1957