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- R M Davila, T Rawles, and M J Mack.
- Cardiopulmonary Research Science Technology, Institute, Dallas, Texas, USA.
- Ann. Thorac. Surg. 2001 Apr 1;71(4):1369-71.
AbstractMinimal access techniques with cardiopulmonary bypass use smaller cannula systems for management of cardiopulmonary bypass. To augment flow rates through the smaller cannula, the technique of vacuum-assisted venous drainage has been used. We describe a complication of vacuum-assisted venous drainage by inadvertent positive pressurization of the venous circuit resulting in a paradoxic air embolus across a patent atrial septal defect. Hazards of the current cardiopulmonary bypass systems and techniques for avoiding this potential complication are discussed.
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