• Rev Esp Cardiol · Apr 2002

    [Single-stage Fontan procedure: early and late outcome in 124 patients].

    • Mario Cazzaniga, Luis Fernández Pineda, Fernando Villagrá, Julio Pérez De León, Ricardo Gómez, Pedro Sánchez, and José Díez Balda.
    • Servicios de Cardiología Pediátrica, Hospital Ramón y Cajal, Madrid, Spain. marcazza@inicia.es
    • Rev Esp Cardiol. 2002 Apr 1;55(4):391-412.

    Introduction And ObjectivesThe Fontan procedure was designed to palliate complex congenital heart disease with univentricular physiology. A retrospective study was made to document the determinants of early (/= 31 days) mortality with the modified Fontan procedure performed in one-stage over a 22-year period.Material And MethodsBetween 1978 and 2000, 102 atriopulmonary, 16 cavopulmonary, and 6 Kawashima type anastomoses were performed to palliate complex congenital heart defects in 124 patients with a mean age of 7.3 4.7 years. Forty-five patient and procedure-related variables were analyzed in relation to mortality. All events were verified.ResultsThere were 29 early (23%) and 20 late (16%) deaths. Estimated survival at 30 days, 2 years, 5 years, and 20 years was 78, 75, 66, and 50%, respectively. Subaortic stenosis, protein-losing enteropathy, and arrythmia were observed in 8, 5 and 33 patients, respectively, after surgery. Univariate and multivariable analysis indicated that left ventricular end-diastolic pressure (>/= 13 mmHg), mean pulmonary pressure (>/= 19 mmHg), mitral stenosis/atresia, atrioventricular valve regurgitation, visceral heterotaxia, absence of fenestration, risk factors criteria, duration of extracorporeal circulation, and operative technique were associated with early mortality. Reoperation, arrhythmia, and pacemaker implantation were predictors of late death. Forty percent remained free from surgical or catheter reintervention after Fontan operation at 20 years.ConclusionsThe outcome of Fontan procedure is profoundly affected by patient-related variables (ventricular function and pulmonary circulation). Postoperative arrhythmia and reoperation shortened the lifespan of the Fontan circulation model in patients with atriopulmonary connections. Total cavopulmonary anastomosis improves the physiology of univentricular circulation. In the light of our findings, the modified Fontan procedure (one or two stages) should be performed early in life to better preserve ventricular and pulmonary vascular function.

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