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PORTAL HYPERTENSION
PORTAL HYPERTENSION
The normal hepatic venous pressure gradient
(difference between the wedged hepatic venous
pressure and free hepatic venous pressure, see below)
is 5–6 mm Hg. Clinically significant portal hypertension
is present when the gradient exceeds 10 mm Hg and
risk of variceal bleeding increases beyond a gradient of
12 mm Hg.
Portal vein: superior mesenteric vein+ Splenic vein.
It carries nutrition to the liver.
Causes
1) Prehepatic pre-sinusoidal:
i) Portal vein thrombosis due to sepsis or secondary to cirrhosis
ii) Abdominal trauma including surgery.
2) Intrahepatic pre-sinusoidal:
i) Schistosomiasis*
ii) Congenital hepatic fibrosis
iii) Drugs
iv) Sarcoidosis
3) Sinusoidal:
i) Cirrhosis
ii) Polycystic liver disease
iii) Nodular regenerative hyperplasia
iv)Metastatic malignant disease
4) Intrahepatic post-sinusoidal:
i) Veno-occlusive disease.
5) Extrahepatic post-sinusoidal:
i) Budd-Chiari syndrome
Portal hypertension
Clinical presentation
• Splenomegaly
• Ascites
• Collateral veins: Caput medusa
• Hypersplenisim
• Hematemesis & Melaena( Due to ruptured esophageal varices).
• Bed side clinical sign in cirrhotic patient:
i) Splenomegaly
ii) ascites
iii) Collateral veins( Caput medusa)
Site of collateral Vessel formation
• distal oesophagus
• stomach and rectum.
• in the anterior abdominal wall
• In the renal, lumbar,ovarian and testicular
vasculature
Investigations
• Endoscopy: to determine whether gastro-
oesophageal varices are present.
• Ultrasonography: often shows features of portal
hypertension, such as splenomegaly and collateral
vessels, and can sometimes indicate the cause,
such as liver disease or portal vein thrombosis.
• CT and MRI
• Portal venous pressure measurement.
• To see features of hypersplenisim: TC &
DC of WBC, platelet, Hb%
Portal Pressure measurement
• Pressure measurements are made by using
a balloon catheter inserted using the
transjugular route (via the inferior vena cava
into a hepatic vein and then hepatic venule)
to measure the wedged hepatic venous
pressure (WHVP). This is an indirect
measurement of portal vein pressure.
• Another is direct method.
Management:
• Primary prevention of variceal bleeding:
i) β-adrenoceptor antagonist (β-blocker) therapy with propranolol (80–
160 mg/day) is effective in reducing portal venous pressure.
*Administration of these drugs at doses that reduce the heart rate by 25%
has been shown to be effective in the primary prevention of variceal
bleeding.
ii) In patients that are unable to tolerate
β-blocker therapy. Carvedilol, a non-cardioselective
vasodilating β-blocker, is also effective.
Management…………
• Management of acute variceal bleeding:
i) I/V fluid: Normal saline/ Colloids
ii) Terlipressin: The dose is 2 mg IV 4 times daily until bleeding
stops, and then 1 mg 4 times daily for up to 72 hours.
iii) Antibiotics: I/V Cephalosporin or Oral Ciprofloxacin.
iv) Endoscopic therapy: band ligation or sclerotherapy.
v) Balloon temponade.
vi) TIPSS(Transjugular intrahepatic portosystemic stent
shunting)
• Treatment of comlications.
Portal hypertension
Complications
• Variceal bleeding: Esophageal, gastric
• Congestive gastropathy.
• Hypersplenisim
• Ascites
• Iron deficiency anemia
• Renal failure
• Hepatic Encephalopathy.
Hypersplenisim
• It is characterized by clinical triad of---
i) Splenomegaly.
ii) Anemia, leucopenia, thrombocytopenia,
alone or in combination.
iii) After splenectomy, there will be correction
of the blood cytopanias.

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Portal hypertension

  • 2. PORTAL HYPERTENSION The normal hepatic venous pressure gradient (difference between the wedged hepatic venous pressure and free hepatic venous pressure, see below) is 5–6 mm Hg. Clinically significant portal hypertension is present when the gradient exceeds 10 mm Hg and risk of variceal bleeding increases beyond a gradient of 12 mm Hg. Portal vein: superior mesenteric vein+ Splenic vein. It carries nutrition to the liver.
  • 3. Causes 1) Prehepatic pre-sinusoidal: i) Portal vein thrombosis due to sepsis or secondary to cirrhosis ii) Abdominal trauma including surgery. 2) Intrahepatic pre-sinusoidal: i) Schistosomiasis* ii) Congenital hepatic fibrosis iii) Drugs iv) Sarcoidosis 3) Sinusoidal: i) Cirrhosis ii) Polycystic liver disease iii) Nodular regenerative hyperplasia iv)Metastatic malignant disease 4) Intrahepatic post-sinusoidal: i) Veno-occlusive disease. 5) Extrahepatic post-sinusoidal: i) Budd-Chiari syndrome
  • 5. Clinical presentation • Splenomegaly • Ascites • Collateral veins: Caput medusa • Hypersplenisim • Hematemesis & Melaena( Due to ruptured esophageal varices). • Bed side clinical sign in cirrhotic patient: i) Splenomegaly ii) ascites iii) Collateral veins( Caput medusa)
  • 6. Site of collateral Vessel formation • distal oesophagus • stomach and rectum. • in the anterior abdominal wall • In the renal, lumbar,ovarian and testicular vasculature
  • 7. Investigations • Endoscopy: to determine whether gastro- oesophageal varices are present. • Ultrasonography: often shows features of portal hypertension, such as splenomegaly and collateral vessels, and can sometimes indicate the cause, such as liver disease or portal vein thrombosis. • CT and MRI • Portal venous pressure measurement. • To see features of hypersplenisim: TC & DC of WBC, platelet, Hb%
  • 8. Portal Pressure measurement • Pressure measurements are made by using a balloon catheter inserted using the transjugular route (via the inferior vena cava into a hepatic vein and then hepatic venule) to measure the wedged hepatic venous pressure (WHVP). This is an indirect measurement of portal vein pressure. • Another is direct method.
  • 9. Management: • Primary prevention of variceal bleeding: i) β-adrenoceptor antagonist (β-blocker) therapy with propranolol (80– 160 mg/day) is effective in reducing portal venous pressure. *Administration of these drugs at doses that reduce the heart rate by 25% has been shown to be effective in the primary prevention of variceal bleeding. ii) In patients that are unable to tolerate β-blocker therapy. Carvedilol, a non-cardioselective vasodilating β-blocker, is also effective.
  • 10. Management………… • Management of acute variceal bleeding: i) I/V fluid: Normal saline/ Colloids ii) Terlipressin: The dose is 2 mg IV 4 times daily until bleeding stops, and then 1 mg 4 times daily for up to 72 hours. iii) Antibiotics: I/V Cephalosporin or Oral Ciprofloxacin. iv) Endoscopic therapy: band ligation or sclerotherapy. v) Balloon temponade. vi) TIPSS(Transjugular intrahepatic portosystemic stent shunting) • Treatment of comlications.
  • 12. Complications • Variceal bleeding: Esophageal, gastric • Congestive gastropathy. • Hypersplenisim • Ascites • Iron deficiency anemia • Renal failure • Hepatic Encephalopathy.
  • 13. Hypersplenisim • It is characterized by clinical triad of--- i) Splenomegaly. ii) Anemia, leucopenia, thrombocytopenia, alone or in combination. iii) After splenectomy, there will be correction of the blood cytopanias.