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December 1970

Experience Using a New Dacron Wool Filter During Extracorporeal Circulation

Author Affiliations

San Francisco; Portland, Ore; San Francisco
From the departments of cardiovascular surgery, cardiovascular surgical physiology, and neuropathology, Presbyterian Hospital, and the Heart Research Institute of the Institute of Medical Sciences, Pacific Medical Center, San Francisco (Drs. Hill, Osborn, Aguilar, and Gerbode, and; Mr. de Lanerolle); and the Department of Neurology, University of Oregon School of Medicine, Portland, Ore (Dr. Swank).

Arch Surg. 1970;101(6):649-652. doi:10.1001/archsurg.1970.01340300005002

The Swank Dacron blood filter has been clinically tested to determine if its use would improve hospital mortality following open heart surgery and the incidence of fat and nonfat emboli. The hospital mortality rate fell from 19.8% to 6.5%. Cerebral nonfat emboli were reduced from an incidence of 31% to 4.1%. Cerebral fat emboli were not affected by the filter. It is concluded that the Swank filter is an effective means of reducing nonfat microemboli during heart-lung bypass.