Esophageal Varices, A Simple Guide To The Condition, Diagnosis, Treatment And Related Conditions

This book describes Esophageal Varices, Diagnosis and Treatment and Related DiseasesEsophageal varices are excessively swollen sub-mucosal veins present in the lower third of the esophagus. They are most often an effect of portal hypertension, often due to cirrhosisPatients with esophageal varices have a strong tendency to bleed readily. Variceal hemorrhage happens from dilated veins (varices) at the junction between the portal and systemic venous systems.
Varices are likely to occur in the distal esophagus and the proximal stomach but isolated varices may be present in the distal stomach, large and small intestine. Bleeding is typically severe and may be threatening to life. Bleeding from esophageal varices is responsible for 5-11% of all cases of upper gastrointestinal bleeding (UGIB). In Western countries, alcoholic and viral cirrhosis are the primary causes of esophageal varices and portal hypertension.30% of patients with compensated cirrhosis and 60-70% of patients with decompensated cirrhosis have gastro-esophageal varices at the time of presentation.
Esophageal varices are diagnosed mainly with endoscopyCausesThe causes of esophageal varices are anything that can produce portal hypertension. Pre-hepatica. Portal vein thrombosis.b. Portal vein obstruction - congenital atresia or stenosis.c. Increased portal blood flow - fistula.d. Increased splenic flowOther Pre-hepatic causes are:1. Splenic vein thrombosis and2. Portal vein thrombosis. These disorders often are linked with:1.
Hyper-coagulable states and2. Malignancy (e.g., pancreatic cancer). Intra-hepatica. Cirrhosis due to different causes such as alcoholic, chronic hepatitis (e.g. viral or autoimmune).b. Idiopathic portal hypertension (hepatoportal sclerosis).c. Acute hepatitis (particularly alcoholic).d. Schistosomiasis.e. Congenital hepatic fibrosis.f. MyelosclerosisPost-hepatica. Compression (e.g. from tumor).b. Budd-Chiari syndrome.c.
Constrictive pericarditis (and rarely right-sided heart failure). Symptomsa. Hematemesis (most often), b. Melena.c. Abdominal paind. Features of liver disease and specific underlying condition.e. Dysphagia or odynophagia (pain on swallowing; uncommon)f. Confusion secondary to encephalopathy (even coma). Diagnosisa. Endoscopy is needed at an early stage.b. FBC - hemoglobin may be low; MCV may be high, normal or low; platelets may also be low; WBC may be raised.c.
Clotting factors including INRd. Renal functione. LFTChest X-Ray - patients may have aspiration or chest infection. TreatmentIn emergency situations, the treatment is directed at:a. Stopping blood loss, b. Maintaining plasma volume, c. Correcting disorders in coagulation induced by cirrhosis, d. Proper use of antibiotics (normally a quinolone or ceftriaxone, as infection by gram-negative strains is either concomitant or a precipitant).
The purpose of treatment should be hemodynamic stability and hemoglobin of over 8 g/dL. Two main treatment methods are present:a. Variceal ligation or bandingb. SclerotherapyAcute Variceal Bleeding Medical Treatment1. Upper Endoscopy urgently (within 12 hours)2. Vasoactive agentsa. Octreotide or Sandostatin (preferred)b. Long-acting somatostatin analogThis is the preferred vasoactive agent in Upper GI Bleedc.
Intravenous VasopressinThis is used with Nitroglycerind. Non-selective Beta BlockerPropanolol, Nadalol, TimololAcute Variceal Bleeding Invasive Treatment1. Endoscopic ligation or banding2. Transjugular intrahepatic Portosystemic Shunt (TIPS)Liver transplant is the treatment of choice for patients with advanced liver diseaseTABLE OF CONTENTIntroductionChapter 1 Esophageal Va...