Prof. Dr. Mohammad Ali El-Ghannam, Professor of Cardio-thoracic Surgery, Faculty of Medicine, Ain Shams University Doctorate in Cardio-thoracic Surgery Fellowship of the British College of Cardio-thoracic Surgery Fellow of the University of Liverpool and James Cook University in England Member of the European Society of Thoracic Surgeons. International member of the American Society of Thoracic Surgery Member of the Egyptian Critical Care Society.