Alejandro Gómez Fabian, Ballesteros Luis Ernesto, Stella Cortés Luz
Universidad Cooperativa de Colombia, Bogotá, Colombia.
Universidad Industrial de Santander, Bucaramanga, Colombia.
Rev Bras Cir Cardiovasc. 2015 Jan-Mar;30(1):63-9. doi: 10.5935/1678-9741.20140101.
In spite of its importance as an experimental model, the information on the great cardiac vein in pigs is sparse.
To determine the morphologic characteristics of the great cardiac vein and its tributaries in pigs.
120 hearts extracted from pigs destined to the slaughterhouse with stunning method were studied. This descriptive cross-over study evaluated continuous variables with T test and discrete variables with Pearson χ square test. A level of significance P<0.05 was used. The great cardiac vein and its tributaries were perfused with polyester resin (85% Palatal and 15% Styrene) and then subjected to potassium hydroxide infusion to release the subepicardial fat. Calibers were measured, and trajectories and relations with adjacent arterial structures were evaluated.
The origin of the great cardiac vein was observed at the heart apex in 91 (76%) hearts. The arterio-venous trigone was present in 117 (97.5%) specimens, corresponding to the open expression in its lower segment and to the closed expression in the upper segment in the majority of the cases (65%). The caliber of the great cardiac vein at the upper segment of the paraconal interventricular sulcus was 3.73±0.79 mm. An anastomosis between the great cardiac vein and the middle cardiac vein was found in 59 (49%) specimens.
The morphological and biometric characteristics of the great cardiac vein and its tributaries had not been reported in prior studies, and due to their similitude with those of the human heart, allows us to propose the pig model for procedural and hemodynamic applications.
尽管猪作为实验模型很重要，但有关猪心大静脉的信息却很稀少。
确定猪心大静脉及其属支的形态学特征。
对120个用击晕法屠宰的猪心脏进行研究。这项描述性交叉研究采用T检验评估连续变量，用Pearson卡方检验评估离散变量。显著性水平设定为P<0.05。用聚酯树脂（85%腭侧树脂和15%苯乙烯）灌注大静脉及其属支，然后注入氢氧化钾以去除心外膜下脂肪。测量管径，并评估其走行及与相邻动脉结构的关系。
91个（76%）心脏的心大静脉起源于心尖。117个（97.5%）标本存在动静脉三角，大多数病例（65%）在其下段呈开放状态，上段呈封闭状态。圆锥旁室间沟上段的心大静脉管径为3.73±0.79mm。59个（49%）标本的心大静脉与心中静脉之间存在吻合。
此前的研究尚未报道心大静脉及其属支的形态学和生物测量学特征，由于它们与人类心脏相似，因此我们建议将猪模型用于手术和血流动力学应用。
