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Ann Thorac Surg 2001;71:39-41
© 2001 The Society of Thoracic Surgeons
a Division of Cardiothoracic Surgery, University of Washington, Seattle, Washington, USA
Accepted for publication June 26, 2000.
Address reprint requests to Dr Karmy-Jones, Department of Surgery, Box 359796, Harborview Medical Center, 325 Ninth Ave, Seattle, WA 98104
e-mail: karmy{at}u.washington.edu
Background. Choices for venous cannulation for left heart bypass, to assist repair of traumatic rupture of the thoracic aorta, are between the left atrial appendage and pulmonary veins.
Methods. A retrospective chart review was performed of patients who underwent operative repair of ruptured aorta.
Results. Over a 15-year period between March 1985 and February 2000, 133 patients were admitted to a level I trauma center with aortic rupture. Of the 50 procedures performed with left heart bypass, the left atrial appendage was cannulated in 19 and pulmonary veins in 31 (four superior, 27 inferior). Complications occurred in 7 of the 19 patients who underwent venous cannulation via the atrial appendage (two ventricular fibrillation, three atrial fibrillation, one pericardial effusion leading to tamponade, and one phrenic nerve injury). Complications occurred in 2 patients who underwent cannulation via pulmonary vein (one atrial fibrillation, one pericardial effusion requiring tapping) (p = 0.02).
Conclusions. Cannulation via the pulmonary veins is associated with a decrease in complication rates compared with cannulation of the atrial appendage.
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