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Influence of Shunt Occlusion on Organ Functions in Hyperammonemic Patients With Cirrhosis Having Porto-systemic Shunt.

Influence of Shunt Occlusion on Organ Functions in Hyperammonemic Patients With Cirrhosis Having Porto-systemic Shunt. A Randomized Controlled Trial.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03293459
Enrollment
40
Registered
2017-09-26
Start date
2017-07-03
Completion date
2019-07-31
Last updated
2020-11-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cirrhosis

Brief summary

The spontaneous Porto-systemic shunt is occluded by intervention procedures like Balloon Occluded Retrograde Transvenous Obliteration (BRTO), Plug-assisted Retrograde Transvenous Obliteration (PARTO) and shunt occlusion procedures resulting in diversion of blood flow towards the portal circulation and in turn the liver. According to this investigator hypothesized that shunt occlusion improves liver volume and function along with beneficial effect on other organ systems by decreasing ammonia and improving hepatopetal flow. All patients with cirrhosis having large shunt(\>10mm) and raised ammonia levels and will be randomized to receive standard medical treatment and those receiving shunt occlusion procedures. Investigator will assess organ functions and liver regenerative potential pre and post (after 3 to 15 months) procedure.

Interventions

PROCEDUREShunt Occlusion

Catheterization of the Porto-systemic shunt (via the left renal vein for gastro-lienorenal shunt) will be accomplished using a catheter and occlusion will be performed with balloon catheter/vascular plug. Occlusion venography is then performed to define the type of varix/varices and the anatomy of the venous drainage followed by infusion of sclerosant. The occluded balloon were inflated and remained in place for a maximum of 24 hours deflated under fluoroscopy the next day/plug is deployed and sclerosant is injected to obliterate the shunt and follow up CT is done to look for completion on the next day. Follow up CT abdomen is done periodically to look for effect on shunt and organ.

These will include diet rich in BCAA (branch chain amino acids), laxatives and rifaximin

Sponsors

Institute of Liver and Biliary Sciences, India
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Informed consent to participate in the study * Age 18 to 70 years * Cirrhotic patients with large shunts (\>10mm) and hyperammonemia (arterial ammonia \>1.5 x N)

Exclusion criteria

* Intractable ascites * Hepatocellular Carcinoma * Portal Vein Thrombosis or splenic vein thrombosis * High risk esophageal varices * Pregnant and lactation * Significant heart or respiratory failure * Active gastrointestinal bleeding * Refusal to participate in study

Design outcomes

Primary

MeasureTime frame
Increase in liver volume by CT Volumetry.3 to 15 months

Secondary

MeasureTime frame
Reduction in MELD (Model for End Stage Liver Disease) in both groups3 to 15 months
Improvement in T Score3 to 15 months
Reduction in Plasma ammonia levels in both groups3 to 15 months

Countries

India

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026