The mother of all surgeries is also known as MOAS and is a surgical procedure that involves cytoreductive surgery (CRS) combined with heated intraperitoneal chemotherapy (HIPEC).
The mother of all surgeries or MOAS is a massive, marathon operation and surgical procedure that is used for treating advanced abdominal cancers.
MOAS or the mother of all surgeries is a grueling, 10 to 16 hour procedure that is used mainly for advanced abdominal cancers like appendiceal cancer and pseudomyxoma peritonei (PMP).
For cytoreductive surgery (CRS) surgeons open your abdomen and meticulously strip out your abdominal lining (peritoneum) and remove all tumors that are visible, which often requires the removal of multiple organs.
And while the patient is still on the operating table, heated chemotherapy drugs are also pumped directly into their abdominal cavity and are circulated to kill any remaining microscopic cancer cells.
To eradicate all visible disease, surgeons might remove your appendix, spleen, gallbladder, ovaries, uterus, fallopian tubes and even parts of your bowel or stomach.
The mother of all surgeries is so extreme because it's one of the most physically demanding procedures in oncology, and the recovery process can also take up to a year, and patients often also require temporary stomas and it carries a high risk of complications, but also offers a potentially curative or life prolonging option for people with rare cancers that have spread throughout their abdomen.