Pontes de miocárdio em bovinos da raça Canchim

Ocorrência e Morfometria de pontes de miocárdio em cães

“…Com respeito à largura das pontes de miocárdio, Amaral et al (1996); Santos (1998) e Cruz et al (2007, verificaram que, nos bovinos (Bos indicus), a média foi de 1,32cm e nos suínos sem raça definida de 0,75cm.…”

“…Archives of Veterinary Science, v.21, n.4, p.82-91, 2016. porcentagem de ocorrência foi relatada por Santos (1998) com Bos taurus. Encontra-se referência à presença de pontes de miocárdio em 57,3% dos corações humanos utilizados no estudo de Baptista e DiDio (1992).…”

Ponte miocárdica associada a lesões cardiovasculares em bovinos adultos da raça Canchim

“…Fragments of myocardial bridges were located on the paraconal interventricular branches of the left coronary artery. Those fragments were constituted by prepontine, pontine and postpontine vessel segments and by the neighboring cardiac muscle tissue, which were fixed on 10% formaldehyde aqueous solution for a 72-hour period and then reduced into 1cm 3 blocks, in order to individualize the said segments. The material was submitted to dehydration in progressive series of alcohol degree, clarified in xilene and paraffin, where sections of 7µm of thickness were immediately performed.…”

“…Therefore, the highest obliquity of fibers 3 , as well as the environment in which this artery is involved [21][22][23] could be a compensatory disposition…”

“…Santos et al 3 affirm that the muscular fibers of the bridge segment form angles with the longitudinal axis of arterial vessels holding a 46° average, being predominantly oblique to them, and trying to follow its longitudinal axis. Some authors [4][5][6][7] report that the presence of myocardial bridge…”