Hemodynamics of isolated ultrafiltration in chronic hemodialysis patients.
Six patients on maintenance hemodialysis were investigated by direct determination of hemodynamic changes induced by UF. Our results show: 1. Despite a significant fall in ECF and PV, the PV/IF ratio was unchanged indicating absence of major fluid shifts between intravascular and extravascular compartments. 2. The rise in CPV/TBV ratio observed indicates central redistribution of intravascular fluid suggesting venoconstriction. 3. CPV and hence CO was maintained so that a stable MAP resulted.
D001794:Blood Pressure; D001810:Blood Volume; D001826:Body Fluids / Q000032:analysis; D002302:Cardiac Output; D002306:Cardiac Volume; D005110:Extracellular Space / Q000032:analysis; D006321:Heart / Q000502:physiology; D006400:Hematocrit; D006439:Hemodynamics; D006801:Humans; D006435:Renal Dialysis; D014462:Ultrafiltration