Liver hypertrophy post-Yttrium-90 versus portal vein embolization: A systematic review and meta-analysis

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Backgrounds/Aims: Portal vein embolization (PVE) and Yttrium-90 (Y-90) radioembolization are used to induce liver hypertrophy, increasing future liver remnant volume and reducing the risk of post-resection liver failure. This systematic review compares the effectiveness of PVE and Y-90 radioembolization in promoting liver hypertrophy in patients undergoing liver resection. Methods: A systematic review was conducted in accordance with PRISMA guidelines. PubMed, Embase, Cochrane, and Web of Science were searched for studies published between January 2000 and August 2023. Studies comparing PVE and Y-90 radioembolization with respect to liver hypertrophy were included. Risk of bias was assessed using the Newcastle-Ottawa Scale. Pooled mean differences were calculated using an inverse-variance random-effects model. Results: = 48%). Conclusions: Evidence directly comparing PVE and Y-90 radioembolization for liver hypertrophy remains limited. While pooled results favor PVE, procedure selection should be individualized based on clinical context.

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