BACKGROUND: Although the Fontan procedure is now being applied to younger patients, the influence of patients' age at the time of surgery on long-term results remains unclear. We investigated whether age at Fontan completion affects subsequent hemodynamics and exercise capacity in patients with a dominant left ventricle followed up for more than 5 years. METHODS: Between January 1990 and December 2001, 68 patients with a dominant left ventricle underwent total cavopulmonary connection (TCPC) at our institute. The survivors routinely underwent postoperative exercise tests and catheterization at 1 year and then every 5 years after TCPC, and were divided into group A (< 3 years; n = 32) and group B (> or = 3 years; n = 33), according to age at time of the Fontan procedure and retrospectively reviewed. We also examined the correlation between age at Fontan and data from postoperative catheterization or exercise tests. RESULTS: None of the patients died during a follow-up period of 91.2 +/- 46.7 months. The postoperative exercise capacity (peak oxygen consumption; % of normal [61.3 +/- 11.5 versus 51.9 +/- 9.1, p = 0.0001]), cardiac index at 5 years (3.31 +/- 0.62 versus 2.86 +/- 0.69, p = 0.0133) and at 10 years after TCPC (3.24 +/- 0.46 versus 2.61 +/- 0.65, p = 0.0194), and ventricular ejection fraction (%) at 10 years after TCPC (62.1 +/- 7.6 versus 53.0 +/- 8.0, p = 0.0131) were significantly higher in group A. Age at Fontan completion inversely correlated with postoperative peak oxygen consumption (R = -0.374, p = 0.0006) and cardiac index at 5 years (R = -0.452, p = 0.0003) and 10 years after TCPC (R = -0.491, p = 0.0072). CONCLUSIONS: Earlier TCPC is beneficial in the long term from the viewpoint of exercise capacity and hemodynamics among patients with a dominant left ventricle.
BACKGROUND: Although the Fontan procedure is now being applied to younger patients, the influence of patients' age at the time of surgery on long-term results remains unclear. We investigated whether age at Fontan completion affects subsequent hemodynamics and exercise capacity in patients with a dominant left ventricle followed up for more than 5 years. METHODS: Between January 1990 and December 2001, 68 patients with a dominant left ventricle underwent total cavopulmonary connection (TCPC) at our institute. The survivors routinely underwent postoperative exercise tests and catheterization at 1 year and then every 5 years after TCPC, and were divided into group A (< 3 years; n = 32) and group B (> or = 3 years; n = 33), according to age at time of the Fontan procedure and retrospectively reviewed. We also examined the correlation between age at Fontan and data from postoperative catheterization or exercise tests. RESULTS: None of the patients died during a follow-up period of 91.2 +/- 46.7 months. The postoperative exercise capacity (peak oxygen consumption; % of normal [61.3 +/- 11.5 versus 51.9 +/- 9.1, p = 0.0001]), cardiac index at 5 years (3.31 +/- 0.62 versus 2.86 +/- 0.69, p = 0.0133) and at 10 years after TCPC (3.24 +/- 0.46 versus 2.61 +/- 0.65, p = 0.0194), and ventricular ejection fraction (%) at 10 years after TCPC (62.1 +/- 7.6 versus 53.0 +/- 8.0, p = 0.0131) were significantly higher in group A. Age at Fontan completion inversely correlated with postoperative peak oxygen consumption (R = -0.374, p = 0.0006) and cardiac index at 5 years (R = -0.452, p = 0.0003) and 10 years after TCPC (R = -0.491, p = 0.0072). CONCLUSIONS: Earlier TCPC is beneficial in the long term from the viewpoint of exercise capacity and hemodynamics among patients with a dominant left ventricle.
Authors: Michelle C Wallace; James Jaggers; Jennifer S Li; Marshall L Jacobs; Jeffrey P Jacobs; Daniel K Benjamin; Sean M O'Brien; Eric D Peterson; P Brian Smith; Sara K Pasquali Journal: Ann Thorac Surg Date: 2011-05 Impact factor: 4.330
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Authors: Joseph Atallah; Gonzalo Garcia Guerra; Ari R Joffe; Gwen Y Bond; Sunjidatul Islam; M Florencia Ricci; Mohammed AlAklabi; Ivan M Rebeyka; Charlene M T Robertson Journal: J Am Heart Assoc Date: 2020-02-11 Impact factor: 5.501