According to the zoo's FB:
"Yesterday [May 23rd], Gigi underwent a ureteral stent procedure to hopefully relieve what appeared to be a partial obstruction of urine flow. The procedure went smoothly, and Gigi’s care team will continue to closely monitor her in the coming days.
At 46 years old, Gigi is the oldest member of the gorilla troop at Franklin Park Zoo and among the oldest gorillas living within the North American population managed by the Association of Zoos and Aquariums. She has been a big part of the zoo family for nearly 40 years, and we are making decisions with her best interests in mind. Even if the ureteral stent procedure proves successful, Gigi will continue to have significant underlying health issues, which we will continue to closely monitor and treat.
Throughout Gigi’s ongoing health issues, our veterinary team has consulted with a number of outside specialists who have shared their expertise and guidance. We would like to thank
Massachusetts General Hospital's Dr. Adam Feldman, urologic oncologist, and Dr. Whitfield Growdon, gynecologic oncologist, who assisted in yesterday’s procedure. We would also like to thank Timothy Hennessey from Karl Storz Endoskope, who generously provided the equipment needed to do the procedure."