title: Hemolysis in double-filtration plasmapheresis.
abstract: To evaluate the occurrence of hemolysis during double-filtration plasmapheresis (DFP) treatment and its causes, we prospectively treated 113 myasthenic patients and monitored transmembrane pressure (TMP), arterial line pressure (Pa), and venous line pressure (Pv) at 30-minute intervals (M30, M60, M90, and M120) during treatment. Laboratory and clinical parameters related to the development of hemolysis were also analyzed. The overall frequency of hemolysis was 35.4%. Peripheral venous access was associated with a higher rate of hemolysis (45.3%) The mean TMP increased significantly after M30 for the hemolysis group compared with the no hemolysis group. A similar trend was present for Pa. Pv did not differ between the 2 groups during treatments until M90 and M120. Pa and TMP changed significantly with time (both P < .0001). Vascular access through large veins and stable TMP during the procedure may help avoid hemolysis.
authors.affiliation: Department of Neurology, Shin Kong Wu Ho-Su Memorial Hospital College of Medicine, Fu-Jen Catholic University, Taipei, Taiwan.
authors.forename: Jiann-Horng
authors.initials: JH
authors.lastname: Yeh
authors.forename: Wei-Hung
authors.initials: WH
authors.lastname: Chen
authors.forename: Hou-Chang
authors.initials: HC
authors.lastname: Chiu
authors.forename: Chyi-Huey
authors.initials: CH
authors.lastname: Bai
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001794:Blood Pressure; D005260:Female; D005374:Filtration; D006461:Hemolysis; D006801:Humans; D008297:Male; D008567:Membranes, Artificial; D008875:Middle Aged; D009157:Myasthenia Gravis / Q000628:therapy*; D010956:Plasmapheresis / Q000009:adverse effects* / Q000379:methods; D011446:Prospective Studies
chemical_list: D008567:Membranes, Artificial