Ostium Johnson Francis | July 6, 2008 | General | No Comments Ostium Ostium: Opening, usually of a blood vessel. Related Posts Heart Walk – The great fundraising event of the American Heart Association No Comments | Aug 8, 2008 What if heart rate response with exercise is blunted? No Comments | Feb 11, 2024 Heart disease in women No Comments | Feb 2, 2017 Our wonderful heart! No Comments | Nov 12, 2007 About The Author Johnson Francis Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal