Personal experience with therapeutic plasmapheresis using the AS.TEC 204 separator

: The authors experience with Fresenius AS.TEC 204 separator for therapeutic exchange plasmaphereses in patients with different diagnoses. The describe the technique of separation, evaluation of advantages of the apparatus. Minor modifications made by the author improve the process of separation. Although the apparatus does not make erythrophereses possible so far, it proved useful for exchange plasmaphereses.