フランスのFEMCAT試験(多施設RCT、909例)では、FLACS群の成功率は41.1%、PCS群は43.6%で有意差はなかった(OR 0.85, 95% CI 0.64–1.12)11)。増分費用効果比は「PCSで成功した追加1患者あたり€10,703の節約」であり、FLACSは費用対効果が低いと結論された10)。
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