Primary surgical repair of tetralogy of Fallot at under three months of age

Ho, Andrew B., Bharucha, Tara, Jones, Eleanor, Thuraisingham, Justin, Kaarne, Markku and Viola, Nicola (2018) Primary surgical repair of tetralogy of Fallot at under three months of age. Asian Cardiovascular and Thoracic Annals, 26 (7), 529-534. (doi:10.1177/0218492318803037).

Abstract

Background: Classical management of small infants with tetralogy of Fallot has involved placement of a Blalock-Taussig shunt followed later by complete repair, rather than primary complete repair which is the strategy adopted in larger infants. Some advantages of early complete repair compared to a staged strategy have been shown. We sought to review our institutional outcomes. Methods: Patients under 3-months old undergoing complete surgical repair of tetralogy of Fallot in our institution between 2005 and 2015 were retrospectively reviewed and compared with an older control group matched by anatomical diagnosis and outflow tract intervention. Results: Fourteen index cases (group A) and 14 controls (group B) were identified. At surgery, the median age was 43 days and weight 4.2 kg in group A, and 130 days and 6.1 kg in group B. Nine of 14 in group A were admitted for surgery as emergencies compared to none in group B. Peak inotrope score (22.3 vs. 12.8, p = 0.02) and intensive care unit stay (4.4 vs. 2.6 days, p = 0.02) were higher in group A. Bypass and crossclamp times, duration of intubation, and total length of stay did not differ. Conclusions: We conclude that although babies undergoing early repair of tetralogy of Fallot have an increased need for intensive care support in the early postoperative period, the total length of stay is not prolonged despite more emergency admissions. As it is known that early repair may reduce long-term morbidity, we propose consideration of earlier complete repair of tetralogy of Fallot.

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