Brazilian Journal of Cardiovascular Surgery v.32 n.4 2017 Brazilian Journal of Cardiovascular Surgery Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV) instacron:SBCCV Brazilian Journal of Cardiovascular Surgery, Volume: 32, Issue: 4, Pages: 276-282, Published: AUG 2017 Brazilian Journal of Cardiovascular Surgery, Vol 32, Iss 4, Pp 276-282