Partial splenic embolization using polyvinyl alcohol particles for hypersplenism in cirrhosis: a prospective...

Area of Science:

• Interventional Radiology
• Hepatology
• Gastroenterology

Background:

• Hypersplenism is a common complication in cirrhosis, leading to cytopenias.
• Partial splenic embolization (PSE) is a treatment option for hypersplenism.
• Comparing embolic materials for PSE is essential for optimizing treatment.

Purpose of the Study:

• To compare the efficacy and safety of PSE using polyvinyl alcohol (PVA) particles versus gelfoam particles.
• To evaluate the impact of PSE on peripheral blood cell counts in cirrhotic patients with hypersplenism.

Main Methods:

• A prospective study involving 60 cirrhosis patients with hypersplenism.
• Random assignment to PSE with either gelfoam (32 patients) or PVA (28 patients).
• Follow-up included monitoring blood cell counts and PSE-related complications over 3 years.

Main Results:

• PSE significantly increased leukocyte and platelet counts in both groups.
• Polyvinyl alcohol (PVA) particle PSE showed significantly better improvement in cell counts compared to gelfoam.
• Severe complications were similar between groups, but abdominal pain was higher with PVA; complication rates increased significantly with >70% splenic embolization.

Conclusions:

• Polyvinyl alcohol (PVA) particles are effective embolic materials for PSE in hypersplenism.
• PSE with PVA particles offers superior efficacy over gelfoam in improving cytopenias.
• Limiting splenic embolization to ≤70% is critical to minimize severe complications.