In the print version of the 29.4 edition of the Brazilian Journal of Cardiovascular Surgery/Revista Brasileira de Cirurgia Cardiovascular, due to a failure in internal control, the article "Distribution of saphenous vein valves and its pratical importance" was published in duplicate, while the "Aortic Center: specialized care Improves outcomes and Decreases mortality "was not published. In the on-line version, the two articles were made available correctly.