Blood Conservation in Coronary Artery Bypass Surgery: Prediction with Assistance of a Computer Model

Summary

A computer assisted model was created with the data from 514 consecutive coronary bypass patients in order to predict the potential need of a blood transfusion. During this time period strict management protocols were used. In this series 261 (55.9 %) patients were never and 46 (9.9 %) were only intraoperatively transfused. Intra- and postoperative transfusions were necessary for 160 (34.2 %) patients. Preoperative hematocrit, age, sex, and weight were the statistically significant parameters in the development of the model.

Zusammenfassung

Anhand von 514 konsekutiven Bypassoperationen wurde unter strikter Anwendung von Behandlungsprotokollen ein Computermodell zur Vorhersage der Notwendigkeit einer Bluttransfusion entwickelt. In dieser Serie wurden 261 (55,9 %) Patienten nie, 46 (9,9 %) nur intraoperativ und 160 (34,2 %) intra- und postoperativ transfundiert. Präoperativer Hämatokrit, Geschlecht, Gewicht und Alter waren die statistisch signifikanten Parameter, welche für das Modell ausschlaggebend waren.

Key words

Coronary artery bypass - Blood transfusion - Transfusion predictors - Computer assisted model