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.
Confidence votes 14.6K. The first successful open heart surgery was performed on July 9, 1893, when Dr. Daniel Hale Williams opened the chest of a man and repaired the pericardium (sac surrounding the heart) which had been damaged by a knife stabbing. The patient recovered after 51 days and lived for another 50 years.