Advanced
Kasai Procedure
Surgery in Hyderabad

What is a Kasai Procedure (Hepatoportoenterostomy)?

The Kasai procedure, also known as hepatoportoenterostomy, is a surgical treatment performed in infants with biliary atresia, a condition in which the bile ducts are blocked or absent, preventing bile from flowing from the liver to the intestine. In this procedure, the damaged bile ducts are removed, and a loop of the small intestine is directly connected to the liver at the porta hepatis to allow bile drainage into the intestine. It is performed under general anesthesia and is most effective when done early in life, ideally within the first 2 to 3 months, as it helps improve bile flow, supports digestion, and delays liver damage, although some children may still require a liver transplant later in life.

Types of Kasai Procedure (Hepatoportoenterostomy):

The Kasai Procedure (Hepatoportoenterostomy) is not a single uniform technique but can be performed in different ways depending on the child’s condition, the stage of biliary atresia, and the surgeon’s approach. Each type is designed to improve bile drainage from the liver and delay liver damage, though the method and extent of surgery may vary.

• Standard (Classic) Kasai Procedure: This is the most widely used approach. In this method, the surgeon removes the blocked or damaged bile ducts outside the liver and carefully exposes the area called the porta hepatis, where tiny bile channels may still be present. A segment of the small intestine (usually arranged as a Roux-en-Y loop) is then connected directly to this area, creating a new pathway for bile to flow from the liver into the intestine. This technique is considered the foundation of treatment and offers the best outcomes when performed early.
• Extended Kasai Procedure: The extended version involves a more detailed and wider dissection at the porta hepatis. The surgeon removes additional fibrous tissue to uncover as many microscopic bile ductules as possible, which may improve bile drainage in some infants. This approach is often considered when the disease is more advanced, and maximizing bile flow is critical. However, it may also carry a slightly higher risk of bleeding or complications due to the deeper dissection.
• Laparoscopic Kasai Procedure: This is a minimally invasive variation where the surgery is performed using small incisions, a camera, and specialized instruments. The same principle of connecting the intestine to the liver is followed, but with less tissue disruption. Potential benefits include smaller scars, reduced pain, and faster recovery. However, it is technically demanding and may not be suitable for all cases, especially in very small infants or advanced disease stages.
• Revision (Redo) Kasai Procedure: In some cases, the initial Kasai procedure may not provide adequate bile drainage, or its effectiveness may decrease over time. A revision or redo of the Kasai may be attempted to restore bile flow by revising the previous connection or removing additional scar tissue. This is typically considered selectively, as outcomes can vary, and many children may ultimately require liver transplantation.

Overall, the choice of technique depends on early diagnosis, surgical expertise, and the individual child’s liver condition, with the primary goal being to establish effective bile drainage and preserve liver function for as long as possible.