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.
How long does carpal tunnel surgery last. http://www.chacha.com/question/how-long-does-carpal-tunnel-surgery-last. The length of carpal tunnel surgery is 30 minutes to 1 hour in most cases.Remember to call 1-800-2ChaCha for unlimited questions![ Source: http://www.chacha.com/question/how-long-does-carpal-tunnel-surgery-last ].More Answers to  How long does carpal tunnel surgery last .he length of carpal tunnel surgery is 30 minutes to 1 hour in most cases. Remember to call 1-800-2ChaCha for unlimited questions! [ Source: http://www.chacha.com/question/how-long-does-carpal-tunnel-surgery-last ]. More Answers to  How long does carpal tunnel surgery last .