A 55-year-old patient suffering from alcoholism was admitted to the ward due to sudden pain in the right upper quadrant, nausea, blood in the vomit and fever. Ultrasound diagnosis reveals a portal vein obstruction caused by liver cirrhosis and accompanied by esophageal varices. Proper portal circulation must be reestablished to alleviate the esophargeal varices, and the attending surgeon decides on an end-to-side portocaval shunt. Which of the following describes the chosen procedure
anastomosis by communication between the portal vein and the inferior vena cava
anastomosis by prosthetic vascular graft between the inferior vena cava and the superior mesenteric vein
anastomosis by suturing the inferior end of the portal vein to the inferior vena cava
anastomosis of the splenic vein to the left renal vein
placement of an expandable stent between a hepatic vein and the portal vein