Detailed Bypass Surgical Procedure (Whole Vena-Cava Anastomosis) Lyrics

It consists in an anastomosis
Between the portal vein and the
Interior vena-cava. When the portal
Blood is deviated from the vena-cava,
The pressure over the portal system
Is diminished and danger from
Hemorrhage from esophagus
And gastric varicosity is reduced.
When the vena-cava can not be
Used because of an obstruction by

Thrombosis or any other reason
One proceeds by a spleen-renal
Deviation between the spleen
Vena and the renal left vena.