Definition and Causes. One of the most common causes of extrahepatic biliary obstruction is choledocholithiasis, with one or more stones in the common bile duct or common hepatic duct causing biliary obstruction.
The pain symptoms associated with CPPS include: 1  Lower back pain. 2  Pelvic pain or pain above the pubic bone. 3  Rectal pain. 4  Perineum pain (area between the anus and the scrotum) 5  Genital pain. 6  Feeling like you are sitting on a tennis ball or a peach pit. 7  Sitting for long periods triggers or exacerbates pain and symptoms.
Cerebral perfusion pressure, or CPP, is the net pressure gradient causing cerebral blood flow to the brain (brain perfusion).he cranium is a box with three components, Blood, Cerebral Spinal Fluid, and very soft tissue (brain). While both the blood and CSF have poor compression capacity, the brain is easily compressible. Every increase of ICP can cause a change in tissue perfusion and an increase in stroke events.