Dr. John O'Brien
Life/Health Chief Medical Officer, London
Dr. John O'Brien is the Chief Medical Officer (CMO) for Gen Re Life/Health Research and Development, based in the UK. Before joining Gen Re as CMO, he worked as consultant for Gen Re in Cape Town while running a pulmonology practice and clinical trial centre. Dr. O'Brien is a past president of the South African Thoracic Society and served on the editorial committees for the South African Thoracic Society guidelines for asthma and COPD. He has been a clinical investigator in more than 70 clinical trials in asthma and COPD.
By Dr. John O'Brien |Mar 08, 2018|English
The prevalence of cardiovascular disease - hypertension, coronary heart disease, heart failure or stroke - increases with age. Often, multiple cardiac conditions coexist with other illnesses, and this makes risk assessments for applicants aged 70 and...Read More
By Dr. John O'Brien |Dec 10, 2015|English
A congenital heart defect (CHD) is a problem with the heart’s structure due to an abnormal foetal development. The complex four-chamber configuration of a normal heart develops from a single tube in early foetal life. To complicate the developing anatomy,...Read More