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Molecular adsorbent recirculating system is ineffective in the management of type 1 hepatorenal syndrome in patients with cirrhosis with ascites who have failed vasoconstrictor treatment
- Source :
- Gut. 59(3)
- Publication Year :
- 2009
-
Abstract
- The pathogenetic mechanism of hepatorenal syndrome (HRS) is paradoxical renal vasoconstriction consequent upon systemic and splanchnic arterial vasodilatation. Molecular adsorbent recirculating system (MARS) is a specialised form of dialysis that clears albumin-bound substances, including vasodilators, and therefore can potentially reduce systemic vasodilatation in cirrhosis.To assess the efficacy of MARS in improving systemic and renal haemodynamics in patients with cirrhosis with refractory ascites and type 1 HRS not responding to vasoconstrictor therapy.A pilot study was carried out in an academic teaching hospital. The study group comprised six patients with cirrhosis, refractory ascites and type 1 HRS not responding to vasoconstrictor treatment. All patients received 5 days of 6-8 h of MARS dialysis. The main outcome measures were pre-MARS and post-MARS measurements of glomerular filtration rate, renal blood flow, neurohormones, cytokines and nitric oxide (NO), as well as daily biochemistry, haematology and urinary volume.There were no significant changes in systemic haemodynamics and GFR following MARS treatments, despite a significant reduction in NO concentrations (111.5+/-18.8 micromol/l pre-MARS, to 65.1+/-8.2 micromol/l post-MARS, p=0.05). There was a transient reduction in serum creatinine (p0.05), Child-Pugh and MELD (Model End-Stage Liver Disease) scores with MARS, but no significant difference was observed in neurohormone and cytokine levels. Four of six patients died following MARS treatments.In patients with cirrhosis, refractory ascites and type 1 HRS not responding to vasoconstrictor treatment, MARS is ineffective in improving systemic haemodynamics and renal function despite reduction in NO levels, suggesting that vasodilatation in advanced cirrhosis is not due to excess systemic vasodilators alone. Transient reduction in serum creatinine indicates direct removal by MARS, and may not represent improved renal function.
- Subjects :
- Adult
Liver Cirrhosis
Male
medicine.medical_specialty
Cirrhosis
Hepatorenal Syndrome
medicine.medical_treatment
Renal function
Pilot Projects
Kidney
Gastroenterology
Renal Circulation
chemistry.chemical_compound
Hepatorenal syndrome
Internal medicine
Ascites
Renin
Medicine
Humans
Vasoconstrictor Agents
Treatment Failure
Aldosterone
Dialysis
Aged
Creatinine
business.industry
Hemodynamics
Middle Aged
medicine.disease
Endocrinology
Treatment Outcome
chemistry
Liver
Renal blood flow
Female
Sorption Detoxification
medicine.symptom
business
Kidney disease
Glomerular Filtration Rate
Subjects
Details
- ISSN :
- 14683288
- Volume :
- 59
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Gut
- Accession number :
- edsair.doi.dedup.....94875fe141018d60b1d79adc757ca507