RT Book, Section
A1 Ellison, E. Christopher
A1 Zollinger, Robert M.
SR Print(0)
ID 1127271598
T1 VENOUS AND LYMPHATIC SUPPLY TO THE UPPER ABDOMINAL VISCERA
T2 Zollinger's Atlas of Surgical Operations, 10e
YR 2016
FD 2016
PB McGraw-Hill Education
PP New York, NY
SN 978-0-07-179755-9
LK accesssurgery.mhmedical.com/content.aspx?aid=1127271598
RD 2024/04/19
AB The  venous  blood  supply  of  the  upper  abdomen  parallels  the  arterial  blood  supply.  The  portal  vein  (1)  is  the  major  vessel  that  has  the  unique  function  of  receiving  venous  blood  from  all  intraperitoneal  viscera  with  the  exception  of  the  liver.  It  is  formed  behind  the  head  of  the  pancreas  by  the  union  of  the  superior  mesenteric  (2)  and  splenic  (3)  veins.  It  ascends  posterior  to  the  gastrohepatic  ligament  to  enter  the  liver  at  the  porta  hepatis.  It  lies  in  a  plane  posterior  to  and  between  the  hepatic  artery  on  the  left  and  the  common  bile  duct  on  the  right.  This  vein  has  surgical  significance  in  cases  of  portal  hypertension.  When  portacaval  anastomosis  is  performed,  exposure  is  obtained  by  means  of  an  extensive  Kocher  maneuver.  Several  small  veins  (4)  from  the  posterior  aspect  of  the  pancreas  enter  the  sides  of  the  superior  mesenteric  vein  near  the  point  of  origin  of  the  portal  vein.  Care  must  be  taken  to  avoid  tearing  these  structures  during  the  mobilization  of  the  vein.  Once  hemorrhage  occurs,  it  is  difficult  to  control.