Researchers find new heart structure in preserved specimens at St. Paul registry
A team of researchers studying hearts at the Jesse E. Edwards Registry in St. Paul, Minn., identified a previously unknown pouch within the atrial septum.
Study begins with preserved specimens
Medical students and surgeons have long assumed they know everything about heart anatomy. A researcher began examining preserved human hearts at the Jesse E. Edwards Registry in 2004. This collection was maintained by a cardiac pathologist who believed old specimens could reveal new secrets.
Discovery of unusual configuration
The investigator encountered a specific shape inside the atrial septum that had never been recorded in textbooks. This pouch opens into the left atrium and measures between 8 and 11 millimeters deep. A systematic investigation using the registry collection confirmed this finding after years of study.
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