Impairment of Venous Drainage Due to Atrial Septal Aneurysm During Open-Heart Surgery

  • Sanghun Kim
    Department of Anesthesiology and Pain Medicine, University of California Davis School of Medicine, Davis, CA
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  • Hong Liu
    Address reprint requests to Hong Liu, MD, University of California Davis School of Medicine, Department of Anesthesiology and Pain Medicine, TB-170 One Shields Avenue, Davis, CA 95616.
    Department of Anesthesiology and Pain Medicine, University of California Davis School of Medicine, Davis, CA
    Search for articles by this author
      IT IS NOT UNCOMMON to encounter inadequate venous drainage during cardiopulmonary bypass. Some common causes include poor positioning and obstruction of the venous cannula, increased resistance due to the small diameter of the venous cannula, and kinks in the tubing that connects the venous cannula to the venous reservoir. We report a case of atrial septal aneurysm (ASA) impairing venous drainage from a 2-stage venous cannula in right atrium during a routine cardiac surgery case requiring cardiopulmonary bypass (CPB). Intraoperative transesophageal echocardiogram (TEE) was instrumental in diagnosis and treatment of the decreased venous drainage.

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