**Question:** Least chances of complication like dumping syndrome and diarrhoea are seen in the following condition:

A. Total colectomy
B. Proctocolectomy with ileal pouch anal anastomosis (IPAA)
C. Myelosuppressive chemotherapy
D. Liver transplantation

**Correct Answer:** **B. Proctocolectomy with ileal pouch anal anastomosis (IPAA)**

**Core Concept:**

The question is testing the understanding of the surgical procedures associated with minimizing complications like dumping syndrome and diarrhoea. Dumping syndrome occurs when the contents of the stomach enter the small intestine too quickly after a partial gastrectomy or bypass surgery, leading to symptoms like flushing, sweating, palpitation, and hypoglycaemia. Diarrhoea can occur as a result of malabsorption or dumping syndrome in patients undergoing intestinal surgery.

**Why the Correct Answer is Right:**

Proctocolectomy with ileal pouch anal anastomosis (IPAA) is a surgical procedure used in the management of patients with ulcerative colitis and familial adenomatous polyposis (FAP). In this procedure, the diseased colon is removed, followed by the creation of an ileal pouch-anal anastomosis. The ileal pouch is a reservoir that stores and releases faecal matter into the rectum, preventing dumping syndrome and reducing the risk of diarrhoea.

**Why Each Wrong Option is Incorrect:**

**A. Total colectomy:** This procedure involves the complete removal of the colon without creating a pouch, which increases the risk of complications due to the absence of a reservoir for faecal matter storage. This increases the chances of dumping syndrome and diarrhoea.

**C. Myelosuppressive chemotherapy:** Chemotherapy drugs mainly affect the rapidly dividing cells, including those in the bone marrow, which is responsible for producing blood cells. These drugs can cause anaemia, thrombocytopenia, and leukopenia, but are not directly related to the prevention of complications related to gastrointestinal surgery.

**D. Liver transplantation:** Liver transplantation is a procedure to replace a diseased liver with a healthy one, treating liver diseases like cirrhosis, hepatitis, and primary liver cancer. It does not address the complications related to gastrointestinal surgery.

**Clinical Pearl:**

IPAA is a well-established surgical procedure that significantly reduces the risk of complications like dumping syndrome and diarrhoea. Patients undergoing IPAA have a reservoir, the ileal pouch, which stores and releases faeces into the rectum, thus improving bowel function and reducing the likelihood of complications.