ISSN 1027-7811 Volume 23 / Number 1 April 2015 Journal of the Hong Kong College of CARDIOLOGY Including Abstracts of Twenty-Third Annual Scientific Congress Hong Kong College of Cardiology 29 May 2015 – 31 May 2015 Hong Kong Journal of the Hong Kong College of Cardiology Editor-in-Chief Chu-Pak Lau Editorial Board Raymond Hon-Wah Chan Cyrus R Kumana Ngai-Shing Mok Wai-Kwong Chan Suet-Ting Lau John E Sanderson Wai-Hong Chen Yuk-Kong Lau Brian Tomlinson Chun-Ho Cheng Tin-Chu Law Hung-Fat Tse Bernard Cheung Kathy Lai-Fun Lee Kai-Fat Tse Chung-Seung Chiang Stephen Wai-Luen Lee Tak-Ming Tse Moses S S Chow Maurice P Leung Siu-Hong Wan Wing-Hing Chow Sum-Kin Leung Kwok-Yiu Wong Katherine Fan Wai-Suen Leung Alexander Shou-Pang Wong Chi-Lai Ho Wing-Hung Leung Kam-Sang Woo Kau-Chung Ho Shu-Kin Li Cheuk-Man Yu David Sai-Wah Ho Archie Ying-Sui Lo International Editorial Consultants A John Camm Hamid Ikram Shih-Ann Chen David T Kelly Victor Dzau Bertram Pitt Barry A Franklin William C Roberts Dayi Hu Delon Wu Section Editors John E Sanderson, Editor of Clinical Cardiology Suet-Ting Lau, Editor of Preventive Cardiology Kau-Chung Ho, Editor of Invasive Cardiology Yuk-Kong Lau, Editor of Non-invasive Cardiology Chu-Pak Lau, Editor of Pacing and Electrophysiology Cyrus R Kumana, Editor of Basic Cardiology: Pharmacology Wai-Kwong Chan, Editor of Images in Cardiology: ECG Journal of the Hong Kong College of Cardiology (ISSN 1027-7811) is published bi-yearly by Medcom Limited, Room 504-5, Cheung Tat Centre, 18 Cheung Lee Street, Chai Wan, Hong Kong, tel (852) 2578 3833, fax (852) 2578 3929, email:
[email protected] Indexed in EMBASE/Excerpta Medica J HK Coll Cardiol, Vol 23 April 2015 i INSTRUCTION FOR AUTHORS The Journal of the Hong Kong College of Cardiology publishes peer-reviewed articles on all aspects of cardiovascular disease, including original clinical studies, review articles and experimental investigations.