Haemodynamic Manifestations Of Blood-dialyser Interactions And Their Modification In An Animal Model
Blood-foreign surface interactions occurring in extracorporeal devices such as the artificial kidney may lead to clinically significant problems. One such problem that has been well recognised is the peripheral leucopenia and arterial hypoxaemia that frequently occurs during the first 30 minutes of dialysis (Craddock et al., 1977a; Jacob, 1980). These phenomena have been related to activation of alternate complement pathway activity (Craddock et al., 1977a,b), which results in the pulmonary sequestration of neutrophils (Toren et al., 1970); this, it has been suggested, causes an increased arterial alveolar gradient of oxygen (Mahajan et al., 1977; De Backer et al., 1983). Haemodialysis with membranes of different chemical composition has been demonstrated to result in varying degrees of complement activation, leucopenia and hypoxaemia (Jacob et al., 1980; Shenonda et al., 1981; Hakim and Lowrie, 1982).
KeywordsPulmonary Hypertension Neutrophil Count Complement Activation Pulmonary Artery Pressure Cellulose Acetate Membrane
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