Response of the vascular system to different modifications of haemofiltration and haemodialysis. 1980

E Quellhorst, and B Schuenemann, and U Hildebrand, and Z Falda

In order to evaluate the reasons for the better tolerance of the cardiovascular system to body fluid removal in HF, different modifications of single-pass and recirculation HD as well as post-dilution HF were applied in 6 patients with stable chronic renal insufficiency under identical conditions of fluid removal, Curea and use of dialysers. A remarkable tolerance of the vascular system could be observed in HF as in HD when the Na+ concentration in the dialysis or diluting fluid was raised from 130 to 150mEq/L or when plasma osmotic pressure was stabilised by i.v. infusion of mannitol. The different buffers acetate and lactate did not influence the results specifically. Total peripheral resistance and plasma noradrenaline levels increased in HF but showed no changes in HD. Important factors causing the greater tolerance of the cardiovascular system in HF may be a more stable extracellular osmotic pressure, inducing a rapid refilling of the extracellular space, combined with an increasing total peripheral resistance.

UI MeSH Term Description Entries
D007674 Kidney Diseases Pathological processes of the KIDNEY or its component tissues. Disease, Kidney,Diseases, Kidney,Kidney Disease
D001769 Blood The body fluid that circulates in the vascular system (BLOOD VESSELS). Whole blood includes PLASMA and BLOOD CELLS.
D006435 Renal Dialysis Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION. Dialysis, Extracorporeal,Dialysis, Renal,Extracorporeal Dialysis,Hemodialysis,Dialyses, Extracorporeal,Dialyses, Renal,Extracorporeal Dialyses,Hemodialyses,Renal Dialyses
D006439 Hemodynamics The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. Hemodynamic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014462 Ultrafiltration The separation of particles from a suspension by passage through a filter with very fine pores. In ultrafiltration the separation is accomplished by convective transport; in DIALYSIS separation relies instead upon differential diffusion. Ultrafiltration occurs naturally and is a laboratory procedure. Artificial ultrafiltration of the blood is referred to as HEMOFILTRATION or HEMODIAFILTRATION (if combined with HEMODIALYSIS).
D014655 Vascular Resistance The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT. Peripheral Resistance,Total Peripheral Resistance,Pulmonary Vascular Resistance,Systemic Vascular Resistance,Peripheral Resistance, Total,Resistance, Peripheral,Resistance, Pulmonary Vascular,Resistance, Systemic Vascular,Resistance, Total Peripheral,Resistance, Vascular,Vascular Resistance, Pulmonary,Vascular Resistance, Systemic
D014680 Veins The vessels carrying blood away from the CAPILLARY BEDS. Vein

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