• Gonzalo Ramírez-Guerrero, Hans Müller-Ortiz, Fernando Jara-Vilugrón, Cristian Pedreros-Rosales, Aldo Vera-Calzaretta, Alexis González-Burboa, Juan Pablo Silva, Vicente Torres-Cifuentes, and Francisco Villagrán-Cortés.
• Departamento de Medicina Interna, Facultad de Medicina, Universidad de Concepción, Chile.
• Rev Med Chil. 2022 Feb 1; 150 (2): 147-153.

BackgroundTherapeutic Plasma Exchange (TPE) is a procedure in which plasma and harmful macromolecules are separated from the rest of the blood components by centrifugation or filtration through membranes and are replaced with solutions with albumin and/or plasma.AimTo communicate our experience using TPE by filtration.Material And MethodsReview of records of 655 TPE sessions performed in 102 patients aged 50 ± 18 years (64% women). The requirement of renal replacement therapy (RRT) and seven days and one year mortality were recorded.ResultsForty five percent of patients had hypertension or diabetes. The main indications for TPE were pulmonary-renal syndrome (PRS) (62%) and antibody mediated graft rejection (29%), followed by neurological diseases (36%). Fifteen percent of patients required RRT for one year. Mortality at seven days and one year was 20 and 30%, respectively. Out of the total of deaths associated with kidney diseases, 88% corresponded to PRS and ANCA vasculitis. The main complications were thrombocytopenia in 41%, hypocalcemia in 18%, and hypotension in 16%.ConclusionsIn our experience, TPE by filtration is a safe technique, with mild and preventable complications. Despite this, the reported mortality is high, which reflects the severity of the diseases that motivated the indication for TPE.

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