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Portal Hypertension
Anatomy
Portal Hypertension
Anatomy
• Portal Circulation:
– Normally Arteries divide into capillaries.
– Capillaries coalesce to form veins.
– Veins drain into Rt. Atrium.
– This arrangement is present in whole of
the body.
But
At some places:
Portal Hypertension
Anatomy
• The vein again divides into capillaries
then again coalesce to form a vein which
drains into Right Atrium.
• This is termed as:
– PORTAL CIRCULATION
• This happens in:
1. Hypothalamus pituitary axis and
2. GI tract :- Portal vein.
Portal Hypertension
Anatomy
Portal Vein--
• Forms behind neck of pancreas by union of
Superior mesenteric and Splenic Veins.
• Travels in free edge of lesser omentum
behind CBD and Hepatic artery.
• Enters liver.
Tributaries of Portal Vein
Tributaries of Portal Vein
1. Coronary (Left Gastric)
2. Pyloric
3. Cystic
4. Pancreatico-duodenal
It carries 75% of blood supply to liver.
It has no Valves
Portal Hypertension
Anatomy
Portal Vein Collaterals
Five Principle Routes
Veins of Retzius
Umbilical Vein
Hemorrhoids
Adhesions
Esophageal Varices
Portal Vein Collaterals
Site Portal vein Systemic vein
Oesophageal Left Gastric, short
Gastric
Azygos
Caput meduse
(Cruveilhier-
Baumgarten bruit)
Umbilical and
Paraumbilical v.
Veins of Ant. Abd.
Wall
Rectum Superior Rectal Middle rectal
Splenorenal Splenic left renal via
Phrenic
Retroperitoneal Mesenteric &
peritoneal
Veins of Retzius
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Portal circulation.pptx

  • 1.
    Tips on usingmy ppt. 1. You can freely download, edit, modify and put your name etc. 2. Don’t be concerned about number of slides. Half the slides are blanks except for the title. 3. First show the blank slides (eg. Aetiology ) > Ask students what they already know about ethology of today's topic. > Then show next slide which enumerates aetiologies. 4. At the end rerun the show – show blank> ask questions > show next slide. 5. This will be an ACTIVE LEARNING SESSION x three revisions. 6. Good for self study also. 7. See notes for bibliography.
  • 2.
  • 3.
    Portal Hypertension Anatomy • PortalCirculation: – Normally Arteries divide into capillaries. – Capillaries coalesce to form veins. – Veins drain into Rt. Atrium. – This arrangement is present in whole of the body. But At some places:
  • 4.
    Portal Hypertension Anatomy • Thevein again divides into capillaries then again coalesce to form a vein which drains into Right Atrium. • This is termed as: – PORTAL CIRCULATION • This happens in: 1. Hypothalamus pituitary axis and 2. GI tract :- Portal vein.
  • 5.
    Portal Hypertension Anatomy Portal Vein-- •Forms behind neck of pancreas by union of Superior mesenteric and Splenic Veins. • Travels in free edge of lesser omentum behind CBD and Hepatic artery. • Enters liver.
  • 6.
  • 7.
    Tributaries of PortalVein 1. Coronary (Left Gastric) 2. Pyloric 3. Cystic 4. Pancreatico-duodenal It carries 75% of blood supply to liver. It has no Valves
  • 8.
  • 9.
    Portal Vein Collaterals FivePrinciple Routes Veins of Retzius Umbilical Vein Hemorrhoids Adhesions Esophageal Varices
  • 10.
    Portal Vein Collaterals SitePortal vein Systemic vein Oesophageal Left Gastric, short Gastric Azygos Caput meduse (Cruveilhier- Baumgarten bruit) Umbilical and Paraumbilical v. Veins of Ant. Abd. Wall Rectum Superior Rectal Middle rectal Splenorenal Splenic left renal via Phrenic Retroperitoneal Mesenteric & peritoneal Veins of Retzius
  • 11.
    Get this pptin mobile 1. Download Microsoft PowerPoint from play store. 2. Open Google assistant 3. Open Google lens. 4. Scan qr code from next slide.
  • 12.
    Get this pptin mobile
  • 13.
    Get my pptcollection • https://www.slideshare.net/drpradeeppande/ edit_my_uploads • https://www.dropbox.com/sh/x600md3cvj8 5woy/AACVMHuQtvHvl_K8ehc3ltkEa?dl =0 • https://www.facebook.com/doctorpradeeppa nde/?ref=pages_you_manage