ATS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Personal Folders
Right arrow Download to citation manager
Right arrow Author home page(s):
Yasuo Morishita
Robert A. Poirier
Right arrow Permission Requests
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Morishita, Y.
Right arrow Articles by Poirier, R. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Morishita, Y.
Right arrow Articles by Poirier, R. A.

Ann Thorac Surg 1980;30:543-549
© 1980 The Society of Thoracic Surgeons

Articles

A New Instrument for Surgical Creation of an Atrial Septal Defect

Yasuo Morishita, M.D.*, Robert A. Poirier, M.D.

From the Department of Surgery, State University of New York, Upstate Medical Center, Syracuse, NY

Accepted for publication February 28, 1980.

* Address reprint requests to Dr. Morishita, The Second Department of Surgery, Kagoshima University School of Medicine, 1208-1 Usuki-Cho, Kagoshima 890, Japan

An instrument for surgical creation of an atrial septal defect (ASD) was designed and tested in puppies weighing an average of 4.7 kg. Oxygen saturations were obtained in both atria, the superior vena cava, and the inferior vena cava before and after septectomy. The instrument has a cutting cylinder introduced into the right atrium (RA) through the right atrial appendage with a second part (baseplate) inserted into the left atrium (LA) just posterior to the interatrial groove. In 21 animals (Group 1), a single hole was created in dogs killed 48 hours later. In 9 animals (Group 2), an attempt was made to create two adjoining holes. In 14 animals (Group 3), a single hole was created and the dogs were allowed to triple their body weight before they were killed.

Group 1 dogs demonstrated a 10% increase in average venae cavae—RA oxygen saturation immediately after septectomy and a 9.4 ± 0.37 mm diameter of the ASD at death; in Group 2, there was a 14% average step-up and a 12.7 ± 0.6 mm diameter of the ASD; and in Group 3, the diameter of the ASD was 11.5 ± 0.4 mm, representing a 50% increase in average area with dog growth compared with that of Group 1. After this experience in the production of ASDs in 44 experimental animals, we find that this instrument seems to be reliable, simple, and safe.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ANN THORAC SURG ASIAN CARDIOVASC THORAC ANN EUR J CARDIOTHORAC SURG
J THORAC CARDIOVASC SURG ICVTS ALL CTSNet JOURNALS
Copyright © 1980 by The Society of Thoracic Surgeons.