Pancreaticoduodenectomy (Whipple)

The pancreas lies deep in the upper abdomen behind the stomach. Its head sits within the curve of the duodenum, the bile duct runs through it to drain bile into the intestine, and it lies close against major blood vessels. Because these organs share a blood supply, a tumour in this area cannot be removed on its own. A pancreaticoduodenectomy removes the pancreatic head, the duodenum, the lower end of the bile duct and the gallbladder, along with nearby lymph nodes; in the classic version the lower part of the stomach is also removed, while the pylorus-preserving version keeps it. The surgeon then rebuilds the digestive tract by joining the remaining pancreas, the bile duct and the stomach to a loop of small intestine, creating three new connections. When a tumour touches a major vein, a section of that vein may be removed and reconstructed during the same operation.

The Whipple procedure is recommended for tumours in the head of the pancreas and the area around it, known as the periampullary region. The commonest reason is pancreatic ductal adenocarcinoma, the usual form of pancreatic cancer, when scans show it can be removed completely. Other indications are cancers of the ampulla of Vater, the lower bile duct and the duodenum, neuroendocrine tumours, and cystic tumours with features that suggest a risk of cancer, such as some intraductal papillary mucinous neoplasms. It is occasionally used for chronic pancreatitis with severe pain centred in an enlarged pancreatic head. Jaundice without pain, weight loss, itching, pale stools and dark urine are typical first signs of a tumour here. Suitability is decided by a multidisciplinary team using a dedicated pancreas CT scan and other imaging, and for borderline tumours chemotherapy is often given first to shrink the tumour and show how it behaves.

The operation is done under general anaesthesia, usually with an epidural or other regional pain relief. Most Whipple procedures are performed through an open incision in the upper abdomen, and in selected cases experienced teams use laparoscopic or robotic techniques. The surgeon first checks that the cancer has not spread to the liver or the lining of the abdomen, sometimes with a short keyhole look at the start. The removal phase frees the duodenum and pancreatic head from the major blood vessels and divides the pancreas, bile duct, stomach or duodenum and small bowel, taking out the specimen with its lymph nodes. In the reconstruction phase, a loop of small intestine is brought up and joined first to the pancreas, then to the bile duct and finally to the stomach or duodenum. Drains may be left near the joins. The whole operation usually takes about 4 to 8 hours.

Candidacy depends on two questions: can the tumour be removed completely, and are you fit enough for a major operation? A pancreas-protocol CT scan, often with MRI, an endoscopic ultrasound with biopsy, and blood tests including the tumour marker CA 19-9 answer the first. Fitness is assessed through heart and lung tests and a review of nutrition and frailty, sometimes with an exercise test. If jaundice is severe, or chemotherapy is planned before surgery, a stent is often placed in the bile duct by ERCP to relieve it. Nutritional support, walking and breathing exercises, diabetes control and stopping smoking and alcohol help prepare the body. Many people with pancreatic cancer now receive several months of chemotherapy before surgery. International patients can send scans and reports for a multidisciplinary review before travel, which clarifies whether surgery is appropriate and how long the stay is likely to be.

After surgery you are usually monitored for a day or two in intensive or high-dependency care, then on the surgical ward. Enhanced recovery principles apply: early walking, breathing exercises and a gradual return to eating, although the stomach can be slow to empty for a time. Drains are removed once the team is satisfied there is no leak. The hospital stay is usually about 7 to 14 days. Fatigue, poor appetite and weight loss are normal in the first weeks, and energy usually returns over about two to three months. Many people need pancreatic enzyme capsules with meals to digest fat, and some develop diabetes. For travel, plan about three to four weeks abroad, so the team can confirm recovery, discuss the pathology and agree on any chemotherapy. Further treatment can often be given at home using the full report, with remote contact with the surgical team.

The Whipple procedure is a long and technically demanding operation, and complications are common even in experienced centres. The main specific complication is a leak from the pancreatic join, called a pancreatic fistula, which is usually managed with drains and antibiotics but can occasionally cause serious bleeding or infection that needs treatment by interventional radiology or further surgery. Delayed emptying of the stomach is common and settles with time. Other risks include bile leak, wound infection, bleeding, blood clots, chest infection and, in a small proportion of patients, death after surgery, a risk that is lower in centres performing many of these operations. Long-term effects include enzyme deficiency and diabetes. For pancreatic cancer, surgery combined with chemotherapy offers the main chance of long-term control, but recurrence is common, and the team discusses expected outcomes openly. For benign and lower-grade tumours, the outlook is usually considerably better.