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Jan L. Svennevig
Harald Lindberg
Odd Geiran
Bjarne K.H. Semb
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Ann Thorac Surg 1984;37:295-300
© 1984 The Society of Thoracic Surgeons

Articles

Should the Lungs Be Ventilated during Cardiopulmonary Bypass? Clinical, Hemodynamic, and Metabolic Changes in Patients Undergoing Elective Coronary Artery Surgery

Jan L. Svennevig, M.D.*, Harald Lindberg, M.D., Odd Geiran, M.D., Bjarne K.H. Semb, M.D., Michel Abdelnor, M.Sc., Stig Ottesen, M.D., Karleif Vatne, M.D.

Departments of Thoracic and Cardiovascular Surgery, Anaes-thesiology, and Radiology, University of Oslo, Rikshospitalet, Oslo, Norway

Accepted for publication August 3, 1983.

* Address reprint requests to Dr. Svennevig, Surgical Department A, Rikshospitalet, Pilestredet 32, Oslo 1, Norway

No beneficial effects were achieved by ventilating the lungs of a group of 10 patients during total extracorporeal circulation for coronary artery bypass operation. Ventilation of nonperfused lungs, which was suggested to prevent postoperative atelectasis, may even have negative effects. Intrapulmonary shunting increased significantly (p < 0.05), while the shunt fraction in the non-ventilated lungs of another group of 10 patients remained unchanged. There were only minor differences between the two groups with respect to systemic and pulmonary hemodynamic changes.






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