RT Book, Section
A1 Hanto, Douglas W.
A1 Geevarghese, Sunil K.
A1 Baron, Christopher
A2 Zinner, Michael J.
A2 Ashley, Stanley W.
A2 Hines, O. Joe
SR Print(0)
ID 1160044642
T1 Portal Hypertension
T2 Maingot's Abdominal Operations, 13e
YR 2019
FD 2019
PB McGraw-Hill Education
PP New York, NY
SN 9780071843072
LK accesssurgery.mhmedical.com/content.aspx?aid=1160044642
RD 2024/04/20
AB Portal  hypertension  (PHTN)  can  occur  in  cirrhotic  and  noncirrhotic  patients  and  can  be  classified  as  presinusoidal  or  prehepatic  (extrahepatic  or  intrahepatic),  sinusoidal  or  hepatic,  or  post-sinusoidal  or  post-hepatic  (Fig.  61-1).  Portal  pressure  can  be  measured  directly,  or  more  commonly  indirectly,  by  calculating  the  hepatic  vein  pressure  gradient  (HVPG)  by  subtracting  the  measured  free  hepatic  vein  pressure  (FHVP)  from  the  wedged  hepatic  vein  pressure  (WHVP).  Portal  pressure  is  normally  <6  mm  Hg  and  clinically  significant  PHTN  is  defined  as  an  HVPG  greater  than  10  to  12  mm  Hg  (Table  61-1).