What is the Menqi Cut-off Technique?

Experts explain

Porta-azygos vein devascularization is also called "devascularization".

A type of surgery that surgically blocks the abnormal blood flow between the portal and azygos veins to achieve hemostasis.

Including: splenectomy and esophagogastric fundus peripheral vascular disconnection, tubular stapler transection of the lower end of the esophagus plus splenectomy, esophageal and gastric fundus peripheral vascular disconnection and gastric fundus ring nail clamping, thoracoabdominal approach splenectomy, cardia

Peripheral blood vessel disconnection and lower esophageal transection, gastric coronary vein embolization after abdominal splenectomy, gastric fundus transection, lower esophageal fundectomy, etc.

Extended information Among the devascularization surgeries, splenectomy plus pericardial dissection is the most effective.

Pericardial dissection: Completely block the collateral circulation of the portal vein and azygos vein around the cardia, thereby making the varicose veins disappear and preventing further bleeding. When cutting off the vein, it is also necessary to ligate and cut off the artery of the same name accompanying the vein.

Coupled with splenectomy, the scope of surgery is wide. However, due to the reconstruction of collateral blood vessels after surgery, the chance of rebleeding is high, up to 10%-40%. Therefore, it is suitable for emergency surgery patients and those who have no supply of systemic veins in the portal circulation.

Patients with unobstructed anastomotic veins, liver function class C, previous shunt surgery and other non-surgical treatments have failed and are not suitable for shunt surgery.