When surgeons perform a “36 hour operation” what exactly are they doing?

Question

What exactly are they doing the entirety of those hours? Are they literally just cutting and stitching and suctioning the entire time? Do they have breaks?

In: 4243

Answer 1

IIRC a liver transplant is one of the longest standard operations given at 12-14 hours. 36 hours had to be some complications to say the least.