The Fontan procedure for tricuspid atresia: early and late results of a 25-year experience with 216 patients
Douglas D. Mair, MD, FACC*,
Francisco J. Puga, MD, FACC and
Gordon K. Danielson, MD, FACC
* Section of Pediatric Cardiology, Mayo Clinic, Rochester, Minnesota, USA
Division of Cardiovascular Surgery, Mayo Clinic, Rochester, Minnesota, USA

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Figure 1 Kaplan-Meier curve for cumulative survival of the total 216 patients. The median postoperative follow-up period is 13 years and 79% of the patients survive.
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Figure 2 Kaplan-Meier curves for cumulative continued survival of the 197 operative survivors divided into era of surgery: 1973 through 1980 (solid line), 1981 through 1987 (dotted line), 1988 through 1997 (dashed line). There is a statistically significant improvement in continued survival among patients operated on more recently.
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Figure 3 Kaplan-Meier curves for cumulative survival of the 216 patients according to age at the Fontan procedure. There is no significant difference in operative mortality. There is a trend toward improved continued survival in patients operated on at younger ages, but it does not reach statistical significance in patients operated on before age 18 years.
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