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B. Saravi

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Review Open access Sep 2026

Efficacy of Ultrasound-Guided Pectointercostal Fascial Block Versus Control and Alternative Regional Techniques in Cardiac Surgery: A Systematic Review and Meta-Analysis with Dose–Response Analysis

Background and Objectives: Ultrasound-guided pectointercostal fascial block (USG-PIFB) is increasingly used for post-sternotomy analgesia, but its efficacy remains uncertain. Prior meta-analyses pooled ultrasound-guided blocks with surgeon-performed infiltration, introducing heterogeneity. We aimed to determine the ana...

Mahmoud Elnahas, M. Zidan, Y. Abusamra et al. · 0 citations
Review Open access Aug 2026

A Self-Controlled Benchmark of Retrieval-Augmented Generation for Large Language Models on Clinical Guideline Questions

Background/Objectives: Large language models (LLMs) show promise for clinical decision support, yet their accuracy in interpreting specialized medical guidelines remains uncertain. Retrieval-augmented generation (RAG) may enhance performance by grounding responses in authoritative knowledge bases. This study aimed to c...

Andreas Vollmer, Lara K. Schorn, Felix Schrader et al. · 0 citations

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