Which procedure is most likely to put the patient at risk of developing a paralytic ileus?

A colon resection is the procedure most likely to put a patient at risk of developing a paralytic ileus. This is primarily due to the extensive manipulation of the intestines during the surgery. In a colon resection, a section of the colon is removed, often involving significant handling of the bowel, which can disrupt the normal motility of the intestines.

Paralytic ileus is a condition characterized by a temporary halt in bowel peristalsis, often resulting from surgical stress, nerve inhibition, or inflammation. The greater the manipulation and disruption of intestinal structures, the higher the likelihood that normal physiological function will be affected.

While other procedures listed may also lead to ileus, the colon resection, which involves direct alteration of the bowel's structure and function, has a stronger association with this complication. Factors such as the extent of surgery and the body's response to trauma play significant roles, making colon resections particularly prone to this postoperative issue.