Myocardial protection: comparing histological effects of single-dose cardioplegic solutions—study protocol for a secondary analysis of the CARDIOPLEGIA trial

Kathize Betti Lira, Renan Senandes Delvaux, Felipe Abatti Spadini, Luis Henrique Hauschild, Rafael Oliveira Ceron, Fernando Anschau, Luciane Kopittke, Juarez Rode, Rafael Antônio Widholzer Rey, Estefania Inez Wittke, Alfeu Roberto Rombaldi, Eduardo Cambruzzi, Eron Rodrigues Cunha Lopes, Adriana Silveira Almeida