Journal
DIGESTIVE AND LIVER DISEASE
Volume 40, Issue 1, Pages 62-67Publisher
PACINI EDITORE
DOI: 10.1016/j.dld.2007.08.011
Keywords
collateral circulation; oesophageal varices; portal hypertension; ultrasonography
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Background. Abdominal ultrasound can detect non-invasively the presence of abdominal portal-systemic collaterals in patients with liver cirrhosis. Abdominal portal-systemic collaterals may be protective from the formation and growth of oesophageal varices, but available data are inconclusive. Aim. We aimed at investigating the relationship between abdominal portal-systemic collaterals and variceal formation and growth. Methods. We studied 126 cirrhotic patients without (n = 43) or with small (n = 83) oesophageal varices who entered a protocol of serial ultrasonographic and endoscopic examinations for a median of 55 months. Presence and kind of abdominal portal-systemic collaterals was recorded on first ultrasonography and on each control thereafter. Results. At inclusion, abdominal portal-systemic collaterals were found in 19/43 patients without varices and in 23/83 patients with small varices (NS). There was no difference in variceal formation and growth between patients with and without abdominal portal-systemic collaterals at inclusion. However, patients developing new abdominal portal-systemic collaterals during follow-up had a significantly higher rate of variceal formation (56.2% vs. 22.2%; p = 0.024) and growth (52.9% vs. 30.6%; p = 0.04 1) compared with patients with unchanged ultrasonography. Conclusions. Abdominal collaterals are not protective from the formation or growth of oesophageal varices. Conversely, new abdominal portal-systemic collaterals emergence is a non-invasive clue of formation and progression of varices. Therefore, endoscopy is probably indicated whenever new abdominal portal-systemic collaterals are detected in cirrhotic patients. (c) 2007 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.
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