Nephrotoxicity of high- and low-osmolality contrast media.

Autor: Jevnikar AM; Department of Medicine, Victoria Hospital, London, Ont., Canada., Finnie KJ, Dennis B, Plummer DT, Avila A, Linton AL
Jazyk: angličtina
Zdroj: Nephron [Nephron] 1988; Vol. 48 (4), pp. 300-5.
DOI: 10.1159/000184947
Abstrakt: Nephrotoxicity of radio-opaque contrast media (CM) is generally believed to involve toxic injury of proximal tubular cells. Measurement of urinary tubular enzyme excretion has been advocated as a sensitive marker of such toxic injury. It has been claimed that the new low-osmolality or nonionic CM reduce the incidence of nephrotoxicity but this remains uncertain. We studied 23 patients with normal renal function undergoing coronary angiography; patients were randomized into three groups receiving either diatrizoate (1,800 mmol/kg H2O), ioxaglate (600 mmol/kg H2O) or iohexol (850 mmol/kg H2O). Urinary excretion of a panel of enzymes increased significantly in all groups by 20 h (p less than 0.05 to less than 0.005). Alanine aminopeptidase excretion at 20 h was greater after the administration of high osmolality ionic CM than with the others but all three CM produced a similar pattern of enzyme excretion. No significant change in glomerular filtration rate was found in any group so the significance of the enzymuria remains uncertain.
Databáze: MEDLINE