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About MSA

MSA was founded in 1954 and is a component of the American Society of Anesthesiologists (ASA). The ASA  is an educational, research and scientific association of physicians organized to raise and maintain the standards of the medical practice of anesthesiology and improve the care of the patient.

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Latest Central Line Podcast!

Dr. Adam Striker discusses PECS blocks and nomenclature with Dr. Christine Vo, member of the ACE editorial board. Learn about the history and efficacy of PECS blocks, the challenges of heterogeneous nomenclature, ongoing efforts to standardize nomenclature, and more. Recorded April 2025.