There are many medical reasons that can cause black stools that are tarry with a foul smell, but sometimes dark stools are caused by eating certain foods or taking iron supplements. However, black stools can also be a result of bleeding, and the darker color indicates that the blood could be coming from a point in the upper gastrointestinal tract.
Gertrude Levandowski survived a 96-hour procedure at a Chicago hospital to remove a giant ovarian cyst; the longest surgery. The second longest surgery ever was 40 hours long and that was to remove 6 limbs from a 8 limed baby in India. But the most common longest surgery is spinal cord surgery it is a 14 hour surgery.
Elaine Esposito (December 3, 1934 â November 25, 1978) holds the record for longest coma according to the Guinness World Records, having lost consciousness in 1941 and eventually dying in that condition more than 37 years later. Elaine was the only child of Louis and Lucy Esposito of Chicago, Illinois. At age 6 she was taken to a hospital having suffered a ruptured appendix, where she underwent an appendectomy on August 6, 1941. She never awoke after being anesthetized.