RT Journal Article SR Electronic T1 Valvular regurgitation and stenosis: when is surgery required? JF Heart Asia JO Heart Asia FD BMJ Publishing Group Ltd, British Cardiovascular Society and Asia Pacific Heart Association SP 20 OP 25 DO 10.1136/ha.2008.000315 VO 1 IS 1 A1 R Goel A1 P P Sengupta A1 F Mookadam A1 H P Chaliki A1 B K Khandheria A1 A J Tajik YR 2009 UL http://heartasia.bmj.com/content/1/1/20.abstract AB Valvular heart disease is a growing public health problem, with an increasing prevalence due to an ageing population. Despite advances, the medical management of symptomatic valvular heart diseases remains suboptimal, necessitating surgical correction. The challenge remains in identifying an asymptomatic or mildly symptomatic patient who will benefit from timely surgery before irreversible changes in cardiac function have occurred. The potential risks of surgery versus watchful expectancy require careful decision-making. This review is a focused update on the existing guidelines and identifies the knowledge gaps and avenues of future research in the management of patients with valvular heart diseases