Ross procedure


The Ross-Yacoub procedure is a cardiac surgery operation where a diseased aortic valve is replaced with the person's own pulmonary valve. A pulmonary allograft is then used to replace the patient's own pulmonary valve. Pulmonary autograft replacement of the aortic valve is the operation of choice in infants and children, but its use in adults remains controversial.

History

The Ross-Yacoub procedure is named after Dr. Donald Ross And Dr. Magdi Yacoub - a pioneer in cardiac surgery in the UK - who proposed the procedure in 1962 and first performed it in 1967.

Advantages / Disadvantages

Advantages

One of the main objections to the Ross-Yacoub procedure is the genesis of pulmonary valve disease in addition to aortic valve disease. Proponents have argued that biological valves implanted in the pulmonary position would be slow to develop dysfunction, and any dysfunction would be well tolerated due to the lower pressures in the right side of the heart. Survival of homografts in the pulmonary position is good, and homograft dysfunction is infrequently implicated in the observed morbidity and mortality.
Homografts should be the replacement of choice; no other valve performed as well in the pulmonary position. Many homograft valves are sterilized with ethylene oxide or irradiation—methods recognized to have deleterious effects on valve performance. The results of the pulmonary autograft procedure are likely to be superior with the use of fresh homograft valves. Today, cryopreservation is the method of choice for homograft preservation.