The pancreas is the key organ of the human system

Certain organs in our system are small in size but perform a crucial function, one among them is the pancreas. It performs two crucial roles in the body: exocrine, the digestive gland's function, and endocrine, which synthesises hormones that control blood sugar levels and glandular secretion. The islets of Langerhans are responsible for endocrine activity, including the synthesis of hormones like glucagon, proinsulin, insulin, amylin, C-peptide, somatostatin, and pancreatic polypeptide (PP). Blood sugar levels are lowered by insulin and raised by glucagon. On the other hand, exocrine activity involves the synthesis of digestive enzymes that aid in the process of food digestion in the intestines.¹ It shows that the pancreas is the key organ in controlling blood sugar and aids in the digestion of food.

Conditions affecting the pancreas

The pancreas may be affected by different conditions that cause transplantation. These include:

Type 1 diabetes: The pancreas stops producing insulin entirely.

Type 2 diabetes: The body produces insulin, but it isn’t effectively used to lower blood glucose levels.

Hyperglycemia (high blood sugar): Occurs when too much glucagon is produced, leading to elevated blood sugar.

Hypoglycemia (low blood sugar): Results from an overproduction of insulin, causing dangerously low blood sugar levels.

Pancreatitis:  Inflammation of the pancreas occurs when digestive enzymes activate before reaching the small intestine. It may be caused by alcohol use or gallstones, and it can be acute or chronic.

Pancreatic cancer: Cancerous cells in the pancreas cause pancreatic cancer. Pancreatic cancer can be difficult to detect and treat.²

What is a pancreas transplant?

A Pancreas transplant is a surgical technique that involves replacing the diseased or not functioning pancreas with a healthy one from a deceased donor. The different types of pancreas transplants include:

Pancreas transplant only: People with diabetes who have early or no renal damage may be eligible for a pancreas transplant alone. A pancreatic transplant involves replacing a healthy pancreas with a recipient whose pancreas no longer functions correctly.

A combined kidney-pancreas transplant: Surgeons frequently conduct combination (simultaneous) kidney-pancreas transplants for diabetic patients who have or are at risk of renal failure. The majority of pancreatic transplants occur concurrently with kidney transplants. The aim is to provide the patient with a healthy kidney and pancreas that are unlikely to cause diabetes-related kidney disease in the future.

Pancreas following kidney transplant: If a living or deceased donor kidney becomes available before a donor pancreas, a kidney transplant may be recommended first. After recovering from kidney transplant surgery, the patient will be given a pancreas transplant as soon as a donor pancreas becomes available.

Pancreatic islet cell transplantation: Involves injecting insulin-producing islet cells from a donor pancreas into the liver. Multiple injections may be needed.

Procedure for a pancreas transplant

The pancreas transplant surgery can take 3.5 to 5 hours, or 7 to 8 hours if combined with a kidney transplant. The kidney is on the left side of the abdomen, and the pancreas is on the right, with the patient’s natural organs left intact. The blood vessels of the transplanted pancreas are connected to the iliac vessels, and digestive fluids from the pancreas are drained into the small intestine using a portion of the donor's duodenum. The surgery is typically performed through either one abdominal incision or two groin incisions.

Complications of pancreas transplant

Every transplant surgery is associated with mild and moderate complications. It is important to know about these so that the complications can be treated accordingly. Some reported complications include:

• Enteric anastomotic leak
• Graft pancreatitis
• Pancreatico-enteric fistula
• Intra-abdominal infection

These conditions may prolong hospital stays and necessitate further interventions. Additional risks are similar to those associated with large-scale surgical procedures. Prevention and early detection of problems can be achieved through careful observation, regular imaging, and the use of anticoagulants and antibacterial medicines. Optimizing patient and organ selection is crucial for success. Cardiac morbidity and postoperative infections are the most common concerns for recipients.

Patient follow-up

After a pancreas transplant, regular blood tests are essential for monitoring recovery and detecting potential issues like rejection or infection..It's critical to monitor blood sugar and amylase levels because sudden increases could indicate issues. Avoiding hospital stays requires a low threshold for infection treatment, getting the necessary vaccines before travel, and quickly evaluating patients. When it comes to patient management, practitioners also need to be mindful of drug interactions and polypharmacy.⁴