Original Article

Complex Calculations during Cardiopulmonary Bypass—1987 Technology

Columbia University, College of Physicians and Surgeons, New York, NY

^* Direct communications to: Henry M. Spotnitz, M.D., Department of Surgery, Columbia University, College of Physicians and Surgeons, 630 West 168th St., New York, NY 10032.

Abstract

(J. Extra-Corpor. Technol. 19[4]: p. 408-411 Winter 1987). Programmable calculators have become increasingly valuable to the conduct of cardiopulmonary bypass (CPB). We report the upgrading of our previous system with current technology. A Sharp PC-2500 portable microcomputer was chosen because of its low cost, easy programmability, rechargeable battery, and built-in printer. This system has allowed perfusionists to perform an increasing number of complex calculations with more accuracy and efficiency. In addition, it offers expanded memory and a permanent record of its calculations. We have used the new system in over 250 cases of CPB without problem. Although the flexibility of such a system allows customization to fit individual needs, we advise that any program be carefully tested and debugged to prevent serious mishap.