Dr Redwood qualified from St. Georges Hospital Medical School. He trained in Cardiology at The Royal London Hospital, The Royal Free Hospital and St. Georges Hospital, London. Interventional training was obtained at The Washington Cardiology Center, Washington, DC and Guys and St. Thomas Hospitals. He obtained Fellowship of the American College of Cardiology in 2001 and became a Fellow of the Royal College of Physicians in 2003.

Dr Redwood is Senior Lecturer/ Consultant Interventional Cardiologist and Director of the Cardiac Catheter labs at St. Thomas, the highest volume catheter lab suite in the UK. He is also Lead Clinician for Research and Development and a Council Member of the British Cardiovascular Intervention Society. He is trained in all aspects of adult interventional cardiology including intravascular ultrasound, physiological lesion assessment using pressure-sensor tipped wires, stent implantation, rotational atherectomy and laser angioplasty including the laserwire for chronic total occlusions.

His MD thesis was on the subject of the pathophysiology of acute myocardial ischaemia and he currently has particular interest in interventional cardiology based research including risk analysis and prediction of events post percutaneous coronary intervention, evaluation of coronary stents and coronary artery physiology.