This episode breaks down a randomized controlled trial from Hepatology exploring whether prophylactic embolization of large spontaneous portosystemic shunts (SPSS) during TIPS can prevent post-procedural hepatic encephalopathy (HE).
- The Core Problem: Even successful TIPS can trigger HE by shunting toxins away from the liver, especially in patients with large preexisting SPSS.
- The Key Strategy: Embolizing SPSS before stent deployment improves visualization and avoids catastrophic coil migration after portal decompression.
- A High-Impact Result: Overt HE was cut nearly in half (21% vs. 48%), with a remarkable number needed to treat (NNT) of just 4.
- No Increased Bleeding Risk: Closing these shunts did not increase variceal rebleeding or compromise TIPS function.
- The Trade-Off: The procedure adds time and briefly increases portal pressure, requiring operator confidence and careful execution.
- The Bottom Line: In a highly selected subset of patients, combining TIPS with SPSS embolization is a powerful, anatomy-driven approach to reduce HE risk.
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