Endoscopic Ruler for the Assessment of Variceal Bleeding Risks (CHESS2005)
Endoscopic Ruler for the Assessment of Variceal Bleeding Risks (CHESS2005)
The presence of varices is a serious complication of portal hypertension in liver disease. To
 prevent variceal haemorrhage, screening and surveillance aims to detect high-risk varices
 related to varices size and determine the need for primary prophylaxis. Varices size
 evaluated by endoscopists might not be perfect reference, influenced by experience and
 machine. Endoscopic ruler is a novel tool to measure the varices size under the endoscopy.
 The investigators aim to evaluate the bias of varices size between endoscopists and
 endoscopic ruler as the reference.
Inclusion Criteria:

 -  age between 18 and 75 years

 -  clinically evident or biopsy-confirmed cirrhosis

 -  Varices diagnosed by endoscopy

 -  written informed consent

 Exclusion Criteria:

 -  red sign

 -  Active upper gastrointestinal bleeding