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  • Title: Modified Blalock-Taussig shunt in newborn infants.
    Author: Ilbawi MN, Grieco J, DeLeon SY, Idriss FS, Muster AJ, Berry TE, Klich J.
    Journal: J Thorac Cardiovasc Surg; 1984 Nov; 88(5 Pt 1):770-5. PubMed ID: 6492843.
    Abstract:
    The modified Blalock-Taussig shunt, interposing an expanded polytetrafluoroethylene graft between the subclavian and pulmonary arteries, was performed in 30 neonates with a mean age of 8.8 days and a mean weight of 3.14 kg. Underlying lesions included severe tetralogy of Fallot or its variant (N = 10), transposition complex (with pulmonary stenosis or atresia) (N = 6), single ventricle equivalents (with pulmonary atresia or stenosis) (N = 9), and pulmonary atresia with intact ventricular septum (N = 5). The mean preoperative arterial oxygen tension prior to prostaglandin E1 therapy was 29.5 torr. The shunt was performed through a right thoracotomy in 18 patients, through a left thoracotomy in nine, and through a median sternotomy in three. A 5 mm graft was used in 21 patients and a 6 mm graft in nine patients. The mean postoperative arterial oxygen tension was 64.1 torr (p less than 0.001). The incidence of early shunt occlusion was 3.3% and the hospital mortality was 3.3%. Actuarial functional life of the shunt (no death or reoperation related to shunt failure) was 91% at 3 years' follow-up. Nine patients were recatheterized. There was no distortion of the pulmonary artery. The ratios of the diameter of the right pulmonary artery and pulmonary valve anulus to that of the descending aorta increased after the operation by 50% (p less than 0.001) and 52% (p less than 0.05), respectively. Our experience indicates that the modified Blalock-Taussig shunt has an excellent function, offers several technical advantages, and lacks most of the drawbacks of other systemic-pulmonary artery shunts. It may be the shunt of choice in patients less than 1 month of age.
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