What is the longest someone has lived after whipple surgery?

The longest known survival after a Whipple surgery (pancreaticoduodenectomy) is reportedly held by a woman named Betty Kromberg. She underwent the procedure in 1991 at the age of 73 and lived for 23 more years, passing away in 2014 at the age of 96. This case is considered exceptional, as the average survival rate after Whipple surgery is around 20% at 5 years post-operation. Kromberg's longevity is attributed to her overall good health, proactive approach to managing her health post-surgery, and the early stage of her cancer at the time of the operation.