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目的：明确狗和人的门静脉侧支循环之间的异同，为门静脉高压症动物模型提供形态学依据。方法：分别结扎狗之内脏大、小循环血管，经过１周至３年８个月，用解剖的方法观察其侧支循环，与人之侧支循环进行比较。结果：两者均存在内脏大、小循环间以及内脏循环与体循环间相互沟通。不同之处：①狗之侧支循环并没有人的丰富、复杂；②狗有小肠系膜静脉→右肾囊静脉→右肾，而人则没有；③两者表浅侧支循环不同。结论：将狗的实验结果应用于临床时须考虑狗和人门脉系统之间异同的影响。
Objective: To clarify the similarities and differences between collateral circulation in dogs and dogs and to provide morphological evidence for animal models of portal hypertension. Methods: The internal organs of dogs with large and small circulation were ligated respectively. After 1 week to 3 years and 8 months, collateral circulation was observed by anatomical method and compared with collateral circulation. Results: Both viscera and small circulation, as well as visceral circulation and systemic circulation between each other. The difference: ① dog collateral circulation and no one is rich and complex; ② dogs with small mesenteric vein → right renal capsule vein → right kidney, while people do not have; ③ both superficial collateral circulation are different. Conclusion: The dog’s experimental results should be considered when the dog and human portal system similarities and differences between the impact.