After the war he returned to Edinburgh as surgeon to the Sick Children's Hospital and became deputy director of the Wilkie Surgical Research Laboratory. He returned with great enthusiasm to surgical research and postgraduate teaching. In 1946, he was appointed professor of surgery at the
Royal Postgraduate Medical School at
Hammersmith Hospital in London. He arrived at a department which had very limited accommodation and facilities, but which, over the next 15 years he was to develop into a surgical unit with an international reputation for research and innovation.
Cardiac surgery His department became involved in diverse areas of research including the Melrose-NEP
heart-lung machine developed by a young surgeon Dennis Melrose, at that time a lecturer in Aird's department. After years of laboratory studies, this was used for the first time on a patient in 1953. The operation was successful and Melrose and William Cleland, a thoracic surgeon in Aird's department, joined the small band of pioneers of open heart surgery. They later developed the technique of potassium induced
cardioplegia, a technique to stop the heart beating to facilitate open heart surgery. With Aird's fluency in Russian, he was able to forge strong links with that country. He arranged for Cleland and Melrose to travel to Moscow where they performed several cardiac operation under
cardio-pulmonary bypass, and they are credited with introducing open heart surgery into Russia. Despite this the Medical Research Council refused Aird's request for funding to support further development of the heart-lung machine.
Other research Aird regarded his discovery of the association between blood groups and gastric disease as being among his most important contributions. In the 1940s
peptic ulcer remained a major cause of morbidity and mortality and
gastric cancer was one of the commonest malignancies. The incidence of both has declined dramatically since then. Aird and his team demonstrated that gastric cancer was significantly more common in people with blood group A while peptic ulcer was commoner in those with blood group O. This was subsequently confirmed in large scale national population studies. He directed surgical research across a wide range of areas. Members of Aird's department included R H Franklin, who researched into causes of gastric and oesophageal cancer and who performed the first operation in Europe for
tracheo-oesophageal fistula, Peter Martin was tasked by Aird to set up a vascular surgery unit, one of the first in the UK, which attracted surgeons from around the world who came to learn techniques of reconstructive vascular surgery. Geoffrey Knight, a neurosurgeon, became a pioneer in the controversial techniques known as
psychosurgery and Selwyn Taylor gained an international reputation in the surgery of the thyroid and parathyroid glands. J S Calnan made important contributions in the field of experimental plastic surgery, particularly in the biology of surgical implants. == James IV Association of Surgeons ==