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Results for “DIURESIS AND DIURETICS”

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PubMed1959

[The urinary elimination of potassium in diuresis induced by water-loading and in diuresis induced by sulfonamide diuretics].

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Diuresis↗

PubMed1977

Excretion of salt and water by patients with sickle-cell anaemia: effect of a diuretic and solute diuresis.

1. Patients with sickle-cell anaemia were unable to increase free water reabsorption (TcH2O) in response to intravenous hypertonic sodium chloride solution. 2. Ethacrynic acid caused a brisk natriuresis in patients with sickle-cell anaemia but fractional sodium excretion was lower in these patients. 3. These findings could be explained by abnormal function of the loop of Henle.

Adult↗

PubMed2005

Reversal of oliguric tacrolimus nephrotoxicity in children.

BACKGROUND: Acute tacrolimus toxicity is manifest by oliguria and elevated serum creatinine. Various vasoregulatory molecules have been implicated in calcineurin inhibitor-mediated nephrotoxicity, including calcium, adenosine and endothelin. Theophylline (THEO), a non-specific adenosine-receptor antagonist prevents renal dysfunction from various nephrotoxins which mediate vasoconstriction. In the setting of acute tacrolimus toxicity, we demonstrated that administration of THEO along with a loop diuretic (LD) enhanced diuresis. This randomized, controlled trial was undertaken to confirm these earlier findings under more rigorous conditions. METHODS: Children with non-renal visceral transplant(s) and evidence of tacrolimus nephrotoxicity oliguria with a 25% increase in serum creatinine concentration from baseline, a whole blood tacrolimus concentration >20 ng/dl and oliguria resistant to therapy with a LD were randomized to receive either THEO (n = 10) or normal saline placebo (n = 8). Using pre and post (6 h) timed urine collections and coincident plasma concentrations the following were measured or calculated: urine flow rate, net fluid balance, creatinine clearance, fractional excretion of chloride, free water clearance and distal delivery of chloride. RESULTS: These patients had markedly impaired creatinine clearance at the onset of tacrolimus toxicity. Urine flow increased in the LD + THEO group by 110% over baseline, but was unchanged in the LD + NS group. An increase in creatinine clearance did not reach statistical significance (P = 0.09). Fractional excretion of chloride and distal solute delivery increased after THEO treatment. CONCLUSIONS: THEO induced a solute diuresis during furosemide-resistant oliguric tacrolimus toxicity in paediatric patients with a trend towards improved renal function.

Adolescent↗

PubMed1949