Kenneth Kar-Lung Yan

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BACKGROUND Complete colonoscopy examination cannot be performed in as many as 10% of cases. The new 9.2-mm ultrathin colonoscope (UTC) with an extra bending section may improve procedure tolerance and allow improvement in colonoscopy completion rate compared with a 12.9-mm standard colonoscope (SC). OBJECTIVE To compare the performance of the 9.2-mm UTC(More)
UNLABELLED Approximately 30%-40% of patients with hepatitis B e antigen (HBeAg)-positive chronic hepatitis B treated with peginterferon and/or lamivudine achieve HBeAg seroconversion 6 months after the end of treatment. The durability and long-term effect of treatment are unknown. In this study, 85 HBeAg-positive patients who received peginterferon alfa-2b(More)
Contraindications to interferon and ribavirin for treatment of chronic hepatitis C (CHC) are well recognized, and previous data indicated the consequent suboptimal treatment uptake. To evaluate the treatment rate of CHC patients in a tertiary referral center in Hong Kong, and to examine the reasons for non-treatment. A retrospective review of all referred(More)
BACKGROUND AND AIM Chronic hepatitis C virus (HCV) infection is one of the leading causes of cirrhosis and hepatocellular carcinoma worldwide. It is highly prevalent among injection drug users (IDUs) but is often undiagnosed because they represent an underprivileged group that faces multiple barriers to medical care. Here, we report the results of the New(More)
AIMS To carry out a meta-analysis on the relationship between smoking and p53 gene mutation in lung cancer patients. MATERIALS AND METHODS PubMed, Web of Science, ProQest and Medline were searched by using the key words: 'lung cancer or lung neoplasm or lung carcinoma', 'p53 mutation' and 'smoking'. According to the selection criteria, 15 articles were(More)
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