Anatomical considerations of the infrapyloric artery and its associated lymph nodes during laparoscopic gastric cancer surgery
Anatomical considerations of the infrapyloric artery and its associated lymph nodes during laparoscopic gastric cancer surgery
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DOI：
10.1007/s10120-014-0424-5
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发表时间：
2015-10-01
期刊：
影响因子：
7.4
通讯作者：
Uyama, Ichiro
中科院分区：
文献类型：
--
作者：
Haruta, Shusuke;Shinohara, Hisashi;Uyama, Ichiro
人们对胃幽门窦的血管和淋巴分布知之甚少。我们重点关注包含幽门下动脉 (IPA) 和淋巴结的幽门下区域。在 156 例腹腔镜胃切除术中，临床阐明了 IPA 及其相关淋巴结的解剖结构。大多数动脉起源于胰十二指肠前上动脉 (ASPDA，64.2 %) 或右胰十二指肠根部 胃网膜动脉（RGEA，23.1％），但一小部分起源于胃十二指肠动脉（GDA，12.7％）。从幽门环到 IPA 近端分支的平均长度为距 ASPDA 21.8 毫米，距 RGEA 20.6 毫米，距 GDA 9.0 毫米，明显短于其他 2 个变体。平均而言，IPA 上存在 10.0 个节点中的 2.5 个。 1例患者肿瘤位置靠近幽门，该切面有转移淋巴结。IPA最常见起源于ASPDA，并伴有一定数量的淋巴结。 IPA 的血管分布取决于解剖结构的变化。
Little is known about the vascular and lymphatic distribution of the pyloric antrum in the stomach. We focused on the infrapyloric region containing the infrapyloric artery (IPA) and lymph nodes.The anatomy of the IPA and its associated lymph nodes was clinically elucidated during 156 laparoscopic gastrectomies.Most of the arteries originated from the anterior superior pancreatoduodenal artery (ASPDA, 64.2 %) or the root of the right gastroepiploic artery (RGEA, 23.1 %), but a small portion originated from the gastroduodenal artery (GDA, 12.7 %). The average lengths from the pyloric ring to the IPA proximal branch were 21.8 mm from the ASPDA, 20.6 mm from the RGEA and 9.0 mm from the GDA, a significantly shorter length than the other 2 variations. On average, 2.5 out of 10.0 nodes existed along the IPA. One patient, whose tumor was located close to the pylorus, had a metastatic node in this section.The IPA most commonly originates from the ASPDA and is associated with a certain number of lymph nodes. Vascular distribution from the IPA depends on the anatomic variation.