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The Journal of Thoracic and Cardiovascular Surgery, Vol 89, 772-779, Copyright © 1985 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
EA Rittenhouse, PB Mansfield, DG Hall, SP Herndon, TK Jones, I Kawabori, JG Stevenson, JW French and SJ Stamm
One hundred twenty-four patients with tetralogy of Fallot have undergone
either primary total repair (61), shunt and later repair (30), or an
initial shunt (33). The mean ratio of pulmonary anulus to descending
thoracic aorta increased from 0.80 +/- 0.25 before the shunt to 1.22 +/-
0.26 before the repair (p less than 0.0001). The mean ratio in the primary
repair group was 1.23 +/- 0.25. A transannular patch was necessary in only
six of 91 patients (6.6%). Postrepair right ventricular/left ventricular
pressure ratio averaged 0.50 +/- 0.11 in the shunt plus repair group and
0.43 +/- 0.12 in the primary repair group. Only four patients had a right
ventricular/left ventricular pressure ratio less than 0.65. A significant
inverse linear relationship existed between this ratio and the pulmonary
anulus size measured at operation and normalized for the patient's height
(p less than 0.01). Postoperative complications occurred in 21% of patients
after a shunt and 20% of patients after open heart repair. The early
mortality was 0.8% (1/124). An initial shunt in patients with a small
pulmonary anulus can result in an increased anulus size and better
hemodynamic result with frequent avoidance of a transannular patch. Staged
repair may result in improved overall mortality rates.
ARTICLES
Tetralogy of Fallot: selective staged management
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