02/21/2026
Please join us in congratulating Cassie — she and her baby are both healthy and doing great after heart problems during her pregnancy!
Cassie was born in 1988 at Mount Zion Hospital (before it was part of UCSF) with a rare and complex congenital heart defect. As a baby, Cassie had two open-heart surgeries in Boston as a baby and toddler. She later had an additional heart surgery as a toddler at UCSF, followed by a valve replacement in 2011 in the South Bay.
In early 2024, Cassie became pregnant and returned to UCSF for care in our high-risk pregnancy program. Her replaced valve had been working well until midway through her pregnancy, when our team determined it was deteriorating and she would need another replacement.
Our heart and OB teams worked together and monitored Cassie carefully to keep her and her baby safe for the rest of the pregnancy.
After welcoming her son, Luke, in October 2024, Cassie had a successful heart surgery at our hospital to replace her valve with a bioprosthetic valve. Cassie is now doing great and enjoying motherhood! Her baby, Luke, is healthy and hitting all his milestones!