Combined Sciatic-Femoral Nerve Block Improves CO2 Angiography Pain Control and Efficiency

Nerve block during CO2 angiography reduced pain (VAS 0 vs 5), improved image quality, and cut procedure time, fluoroscopy, and contrast use vs sedation, per retrospective study.

• After propensity score matching (29 pairs), VAS scores, image quality, contrast use, procedure duration, and fluoroscopy time remained significantly better with nerve block; radiation dose was comparable.
• Patient and operator satisfaction were significantly higher in the nerve block group (p<0.001).

Evidence grade: Level 3

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