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J. Donald Hill, MD; John J. Osborn, MD; Roy L. Swank, MD; Mary J. Aguilar, MD; Primal de Lanerolle; Frank Gerbode, MD

AMA Arch Surg. 1970;101(6):649-652.

Abstract
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.

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).

Footnotes
Accepted for publication July 30, 1970.

Read before the 18th scientific meeting of the International Cardiovascular Society, Chicago, June 19, 1970.

Reprint requests to Pacific Medical Center, San Francisco 94115 (Dr. Hill).

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