Surgery for Portal Hypertension
The portal vein system consists of the portal vein and veins that extend from the stomach, intestines, spleen, and pancreas and collaborate into portal vein. This portal vein branches into smaller tributaries to traverse the liver. Increased systemic vein resistance the system forces blood to flow through alternate channels, causing increased hepatic venous pressure which pump out. When it doesn’t flow through the liver properly, the vessels in the liver become clogged. The veins in the liver have high blood pressure, which leads to swollen veins. or varices in the esophagus, stomach, rectum, and umbilical area. These varices rupture and causes internal bleeding which can be life threatening. When the liver is obstructed, the pressure in the portal vein increases. Obstructions are divided into prehepatic, intrahepatic and post-hepatic portal hypertension.