CPT® Code 37160

The procedure described by CPT® Code 37160 involves a surgical technique known as venous anastomosis, specifically an open caval-mesenteric anastomosis. This procedure is commonly referred to as a mesocaval shunt. It is performed to create a connection between the superior mesenteric vein and the inferior vena cava, which can help in managing conditions that affect venous blood flow. The surgery typically requires a vertical midline incision in the abdomen, allowing the surgeon to access the necessary vascular structures. During the operation, the colon is retracted to provide visibility and access to the superior mesenteric vein, which is carefully isolated. The duodenum is also mobilized to facilitate exposure of the inferior vena cava, located at the iliac bifurcation. The procedure can be performed using direct anastomosis of the veins or by employing a synthetic graft if necessary. This surgical intervention is critical in addressing specific vascular issues and improving venous drainage in the abdominal region.