title: Extensive portal and splenic vein thrombosis: differences in hemodynamics and management.
abstract: OBJECTIVE
  To assess the incidence of extensive portal and splenic vein thrombosis in patients with extrahepatic portal vein obstruction and determine the differences in presentation, portal hemodynamics and management as compared to patients with portal vein thrombosis alone.
  
  
  METHODS
  118 patients of extrahepatic portal vein obstruction presenting with variceal hemorrhage, having received no definitive treatment prior to presentation were divided into two groups--with portal and splenic vein thrombosis and with portal vein thrombosis, based on ultrasonography and splenoportography. Collateralization patterns on splenoportography were studied. Results of endoscopic variceal sclerotherapy were compared.
  
  
  RESULTS
  Portal and splenic vein thrombosis was seen in 39 patients. Collateralization in case of portal and splenic vein thrombosis, in contrast to portal vein thrombosis, was predominantly left sided (74% vs. 9%, p < 0.0001). Fundal gastric varices were seen more often in patients with portal and splenic vein thrombosis (28% vs. 11%, p = 0.02), developing even after variceal obliteration, though obliteration was achieved in fewer sessions. Surgery for control of variceal bleed was performed more in the portal and splenic vein thrombosis group (33% vs. 15%, p = 0.02), especially for gastric varices (28% vs. 9%, p = 0.006).
  
  
  CONCLUSIONS
  Portal and splenic vein thrombosis is present in 33% of patients with extrahepatic portal vein obstruction. Hemodynamic patterns differ, accounting for the preponderance of gastric varices on presentation in patients with portal and splenic vein thrombosis and an increased need for surgery.
authors.affiliation: Gastroenterology Surgical Services, Seth G.S. Medical College, King Edward VII Memorial Hospital, Bombay, India. shahsudeep@hotmail.com
authors.forename: S R
authors.initials: SR
authors.lastname: Shah
authors.forename: H L
authors.initials: HL
authors.lastname: Deshmukh
authors.forename: S K
authors.initials: SK
authors.lastname: Mathur
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003097:Collateral Circulation; D004932:Esophageal and Gastric Varices / Q000209:etiology / Q000628:therapy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000628:therapy; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011168:Portal System / Q000503:physiopathology; D011169:Portal Vein; D011446:Prospective Studies; D012008:Recurrence; D015911:Sclerotherapy; D013162:Splenic Vein; D013927:Thrombosis / Q000150:complications / Q000503:physiopathology* / Q000601:surgery / Q000628:therapy*