<prompt> Answer this question truthfullyWhat is irritable bowel syndrome?  <response>: <reason> The first successful intestinal resection was performed in 1880. In 1935, Haymond following research on many patients with bowel resection, reported that 30 to 50 loss of bowel was well tolerated. Total parenteral nutrition TPN was introduced during the 1960s, which lead to increased survival following bowel resection. 