Effects of shoulder rotation and table tilt maneuvers on the lumbar and thoracic paramedian acoustic window in older adults: a quasi-experimental study.

Braz J Anesthesiol · 2026 · PMC13315850 · PMID 42229632

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did not reach statistical significanceno p-value reported

Conclusion Table tilt produced a significant anatomical enlargement of the neuraxial acoustic window at both spinal levels studied, whereas shoulder rotation did not reach statistical significance.

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