Comparison Between Centrifugation Based and Membrane Based Plasma Exchange

"comparison between the 2 methods of plasma exchange as regards efficacy, performance and adverse events.~Procedure of therapeutic plasma exchange (TPE) :~mTPE will be done by bellco hemodialysis machine (Formula 2000), while cTPE will be done by Nigale Plasma Collector (XJC 2000). The vascular access used for both types of plasma exchange will be central venous catheter inserted into the internal jugular vein, subclavian or femoral vein.~Prescription of TPE The amount of plasma to be treated is usually equivalent to the patient's estimated plasma volume (EPV).~Estimated plasma volume will be calculated using the following formula (Kaplan formula) in litres:~* EPV = 0.07 x wt (kg) x (1 - hematocrit) in males.~* EPV = 0.065 x wt (kg) x (1 - hematocrit) in females."