Mother Holding Baby Finger

 Pan-American Society for the

Placenta Accreta Spectrum


Saving Women from the morbidity and mortality of the Placenta Accreta Spectrum through collaborative research, education and advocacy


The Pan-American Society for Placenta Accreta Spectrum (PAS2) grew out of shared clinical and research interests. A group of physicians first started talking about placenta accreta in 2010 at the Annual Meeting of the Society for Maternal-Fetal Medicine.  Since then, we have worked together on clinical guidelines, expert opinion pieces and research, education and outreach.  Due to the mutli-disciplinary nature of our work, we have now grown into an independent society made up of obstetricians, maternal-fetal medicine specialists, gynecologic oncologists, anesthesiologists, transfusion medicine specialists, critical care specialists, pathologists, and scientific researchers, and more, all of whom share our united mission.

The Pan-American Society for the Placenta Accreta Spectrum, PAS2, is a non-profit 501(c)3 organization that is staffed by members on a volunteer basis.  

What We Do

Mother and a Child

Clinical Expertise

Provide resources for  healthcare



Discover answers through collaborative science


Train the next generation of professionals


Partner with others to advocate for patient safety

Our Centers
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