BACKGROUND: Midterm and long-term results of patients who underwent a Norwood procedure with a right ventricular-pulmonary artery conduit remain unclear. This study aimed to compare the midterm ventricular performance of the Norwood procedure with right ventricular-pulmonary artery conduit and the Norwood procedure with systemic-pulmonary shunt. METHODS: Twenty-one patients who underwent both a bidirectional Glenn procedure and a total cavopulmonary connection after Norwood palliation at Fukuoka Children's Hospital Medical Center were divided into two groups: the systemic-pulmonary shunt group (n = 11) and the right ventricular-pulmonary artery conduit group (n = 10). End-systolic elastance (contractility), effective arterial elastance (afterload), and ventriculoarterial coupling and the ratio of stroke work and pressure-volume area (ventricular efficiency) were measured on the basis of cardiac catheterization data before the bidirectional Glenn procedure, before and after the total cavopulmonary connection, and at approximately 1 year after total cavopulmonary connection. RESULTS: After bidirectional Glenn procedure and total cavopulmonary connection, end-systolic elastance of the right ventricular-pulmonary artery conduit group was lower than that of the systemic-pulmonary shunt group, whereas effective arterial elastance of the right ventricular-pulmonary artery conduit group was lower than that of the systemic-pulmonary shunt group. Consequently, there was no difference in ventricular efficiency in both groups 1 year after total cavopulmonary connection. CONCLUSIONS: The midterm ventricular performance of the right ventricular-pulmonary artery conduit group was comparable with the systemic-pulmonary shunt group in terms of ventricular efficiency. However, after bidirectional Glenn procedure and total cavopulmonary connection, contractility in patients who underwent a Norwood procedure with a right ventricular-pulmonary artery conduit was inferior to that of patients who underwent a Norwood procedure with a systemic-pulmonary shunt.
BACKGROUND: Midterm and long-term results of patients who underwent a Norwood procedure with a right ventricular-pulmonary artery conduit remain unclear. This study aimed to compare the midterm ventricular performance of the Norwood procedure with right ventricular-pulmonary artery conduit and the Norwood procedure with systemic-pulmonary shunt. METHODS: Twenty-one patients who underwent both a bidirectional Glenn procedure and a total cavopulmonary connection after Norwood palliation at Fukuoka Children's Hospital Medical Center were divided into two groups: the systemic-pulmonary shunt group (n = 11) and the right ventricular-pulmonary artery conduit group (n = 10). End-systolic elastance (contractility), effective arterial elastance (afterload), and ventriculoarterial coupling and the ratio of stroke work and pressure-volume area (ventricular efficiency) were measured on the basis of cardiac catheterization data before the bidirectional Glenn procedure, before and after the total cavopulmonary connection, and at approximately 1 year after total cavopulmonary connection. RESULTS: After bidirectional Glenn procedure and total cavopulmonary connection, end-systolic elastance of the right ventricular-pulmonary artery conduit group was lower than that of the systemic-pulmonary shunt group, whereas effective arterial elastance of the right ventricular-pulmonary artery conduit group was lower than that of the systemic-pulmonary shunt group. Consequently, there was no difference in ventricular efficiency in both groups 1 year after total cavopulmonary connection. CONCLUSIONS: The midterm ventricular performance of the right ventricular-pulmonary artery conduit group was comparable with the systemic-pulmonary shunt group in terms of ventricular efficiency. However, after bidirectional Glenn procedure and total cavopulmonary connection, contractility in patients who underwent a Norwood procedure with a right ventricular-pulmonary artery conduit was inferior to that of patients who underwent a Norwood procedure with a systemic-pulmonary shunt.
Authors: Richard G Ohye; Lynn A Sleeper; Lynn Mahony; Jane W Newburger; Gail D Pearson; Minmin Lu; Caren S Goldberg; Sarah Tabbutt; Peter C Frommelt; Nancy S Ghanayem; Peter C Laussen; John F Rhodes; Alan B Lewis; Seema Mital; Chitra Ravishankar; Ismee A Williams; Carolyn Dunbar-Masterson; Andrew M Atz; Steven Colan; L LuAnn Minich; Christian Pizarro; Kirk R Kanter; James Jaggers; Jeffrey P Jacobs; Catherine Dent Krawczeski; Nancy Pike; Brian W McCrindle; Lisa Virzi; J William Gaynor Journal: N Engl J Med Date: 2010-05-27 Impact factor: 91.245
Authors: Chitra Ravishankar; Eric Gerstenberger; Lynn A Sleeper; Andrew M Atz; Jeremy T Affolter; Timothy J Bradley; J William Gaynor; Bryan H Goldstein; Heather T Henderson; Jeffrey P Jacobs; Alan B Lewis; Carolyn Dunbar-Masterson; Shaji C Menon; Victoria L Pemberton; Christopher J Petit; Nancy A Pike; Christian Pizarro; Kurt R Schumacher; Ismee A Williams; Jane W Newburger Journal: J Thorac Cardiovasc Surg Date: 2015-09-28 Impact factor: 5.209
Authors: Ranjit Aiyagari; John F Rhodes; Peter Shrader; Wolfgang A Radtke; Varsha M Bandisode; Lisa Bergersen; Matthew J Gillespie; Robert G Gray; Lin T Guey; Kevin D Hill; Russel Hirsch; Dennis W Kim; Kyong-Jin Lee; Andrew N Pelech; Jeremy Ringewald; Cheryl Takao; Julie A Vincent; Richard G Ohye Journal: J Thorac Cardiovasc Surg Date: 2013-12-12 Impact factor: 5.209
Authors: Peter C Frommelt; Eric Gerstenberger; James F Cnota; Meryl S Cohen; Jessica Gorentz; Kevin D Hill; J Blaine John; Jami C Levine; Jimmy Lu; William T Mahle; Rachel T McCandless; Luc Mertens; Gail D Pearson; Carolyn Spencer; Deepika Thacker; Ismee A Williams; Pierre C Wong; Jane W Newburger Journal: J Am Coll Cardiol Date: 2014-11-03 Impact factor: 24.094
Authors: Richard G Ohye; J William Gaynor; Nancy S Ghanayem; Caren S Goldberg; Peter C Laussen; Peter C Frommelt; Jane W Newburger; Gail D Pearson; Sarah Tabbutt; Gil Wernovsky; Lisa M Wruck; Andrew M Atz; Steve D Colan; James Jaggers; Brian W McCrindle; Ashwin Prakash; Michael D Puchalski; Lynn A Sleeper; Mario P Stylianou; Lynn Mahony Journal: J Thorac Cardiovasc Surg Date: 2008-05-19 Impact factor: 5.209