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Renal function after dopamine and fluid administration in patients with malignant obstructive jaundice. A prospective
Antonio Naranjo1, Adolfo Cruz, Patricia López
1Gastroenterology Department, Puerta del Mar University Hospital, Cadiz, Spain.
Summary
Dopamine with saline infusion may improve kidney function in select patients with malignant obstructive jaundice. This intervention is most effective in those with severe cholestasis and specific urine sodium levels.
Area of Science:
- Nephrology
- Gastroenterology
- Critical Care Medicine
Background:
- Obstructive jaundice (OJ) frequently leads to acute renal failure.
- Extracellular water volume (ECW) depletion and myocardial dysfunction contribute to hemodynamic instability and renal impairment in OJ patients.
Purpose of the Study:
- To assess the efficacy of peridrainage saline infusion combined with dopamine administration in managing hormonal and renal function abnormalities in patients with malignant OJ.
- To investigate the impact of dopamine on renal parameters like creatinine clearance (CrCl) and hormonal levels.
Main Methods:
- A prospective randomized study involving 102 patients with malignant OJ.
- Patients received either saline infusion alone or saline plus dopamine before and during endoscopic biliary drainage.
- Key parameters monitored included ECW, aldosterone, renin, ANP, ADH, ET-1, urine PGE2, and CrCl.
Main Results:
- Saline infusion increased ECW and improved CrCl.
- Dopamine administration led to an 11% increase in CrCl and reduced urinary PGE2.
- Patients receiving dopamine showed preserved CrCl post-drainage, unlike those on saline alone. Improvement was noted in patients with high bilirubin and low urine sodium.
Conclusions:
- Dopamine combined with IV fluids can positively impact renal function in specific malignant obstructive jaundice patients.
- The beneficial effect of dopamine is more pronounced in individuals with significant cholestasis.
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