Single-Center Study: Microfibrillar Collagen Tract Embolization Yields Very Low Bleeding Rate in Liver Biopsy

In a single-center review of 695 ultrasound-guided non-targeted liver biopsies with microfibrillar collagen tract embolization, major bleeding occurred in only 0.14% (1/695, 95% CI 0.00–0.80%) and minor bleeding in 0.14%, supporting its safety as an adjunct.

• The single major bleeding event required both endovascular and operative intervention.
• Thirty-day readmission rate was 2.4% (17/695), but none were attributed to the biopsy procedure.

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