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Revista argentina de cardiología
versión On-line ISSN 1850-3748
Resumen
VILLALBA, Claudia N. et al. The Modified Nikaidoh Procedure: Initial Experience and Short and Mid-term Outcomes. Rev. argent. cardiol. [online]. 2014, vol.82, n.6, pp.493-499. ISSN 1850-3748.
Background: The Rastelli operation is the conventional procedure for transposition of the great vessels with ventricular septal defect and pulmonary stenosis. Its results, however, are suboptimal and other surgical alternatives have been postulated. A recent surgical technique, the Nikaidoh procedure, appears as a new therapeutic option. Objective: The aim of this study was to review our initial experience using the modified Nikaidoh procedure consisting in aortic translocation and biventricular outflow tract reconstruction. Methods: The study analyzed 11 consecutive patients operated on with the modified Nikaidoh procedure at our institution between 2005 and 2014. Median age was 3 years (25-75% interquartile range: 1-5.5 years) and mean weight was 13.8 ± 5.4 kg. Nine patients had transposition of the great vessels with ventricular septal defect and pulmonary stenosis and 2 had double outlet right ventricle with pulmonary stenosis and transposition physiology. All patients had a ventricular septal defect unrelated to the aorta and one patient also had a hypoplastic right ventricle. Results: There were no deaths in the immediate postoperative period. One patient developed infective endocarditis needing reoperation. Six patients had some degree of transient left ventricular dysfunction, and one patient only needed ventricular assistance. There was no involved right or left ventricular outflow tract obstruction and only mild aortic regurgitation. At mid-term follow-up (mean of 5.5 ± 2.1 years, range: 2-8.6 years) there were no deaths or reoperations. An interventional cardiac catheterization to dilate the right ventricle to pulmonary artery conduit was performed in one patient. All patients remained in functional class I, with good biventricular function, free from arrhythmias, no left ventricular outflow tract obstruction and no significant aortic regurgitation. Conclusions: The Nikaidoh operation and its variants are a satisfactory surgical option for patients presenting transposition of the great vessels with ventricular septal defect and pulmonary stenosis, who due to their morphology are inadequate candidates for a Rastelli procedure. In the mid-term follow-up, the left ventricular outflow tract remained without obstruction and there was no significant aortic valve regurgitation.
Palabras clave : Congenital Heart Defects; Cardiovascular Surgical Procedures; Nikaidoh Surgical Procedure; Nikaidoh Modified Procedure; Aortic Translocation; Double Oulet Right Ventricle; Transposition of the Great Vessels; Pulmonary Stenosis; Postoperative Follow-up.