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The Ross Operation: Clinical Results and Echocardiographic Findings

Department of Cardiac Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran

For reprint information contact: Roya Sattarzadeh, MD, Tel: 98 21 4406 5893, Fax: 98 21 4406 4531, Email: satarzad{at}sina.tums.ac.ir, 1419731351-Imam Khomeini Hospital, Keshavarz Blvd., Tehran, Iran.

Between November 2001 and September 2004, 80 patients aged 11 to 56 years (mean, 27.6 years) underwent the Ross operation. The mean preoperative New York Heart Association functional class was 2.37 ± 0.72, and the mean ejection fraction was 52.8% ± 16%. Aortic involvement included stenosis in 19 (24%) patients, regurgitation in 22 (28%), and both in 39 (49%). Root replacement was the technique used in all cases. The mean hospital stay was 5 days, and 74 patients (93%) were followed up for 4 – 48 months. Four-year actuarial survival rate was 96.25%. Postoperative echocardiography revealed no pulmonary autograft insufficiency in 50 patients (63%), trivial to mild insufficiency in 22 (28%), moderate insufficiency in 2 (3%), and severe insufficiency in one (1%). Two patients required autograft re-intervention. Postoperative echocardiography of the pulmonary homograft valve showed severe stenosis (peak gradient > 50 mm Hg) in 2 patients, and moderate stenosis (peak gradient 25–50 mm Hg) in one. The mean postoperative left ventricular ejection fraction was 51.4%. The Ross operation can be considered an elegant alternative to prosthetic valves in the treatment of aortic valve diseases in developing countries.

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