[Anatomic study of small intestinal vessel in piglet small intestine transplantation].
OBJECTIVE
To study the anatomy of the small intestine,and investigate the optimal selection of donors,recipients,and their small intestine vessels in piglet small intestine transplantation.


METHODS
The weight and length of 30 piglets were measured. Angiography and pigments perfusion were used to observe the main vessels of the small intestine,and the length of the small intestine,and the external diameter of the main vessels of the small intestine were measured in vivo and ex vivo.


RESULTS
The length of the small intestine was 11.5 times as long as the body length, and its weight accounted for 2.3% of the body weight. The outer diameters of abdominal aorta (AT), mesenteric anterior artery (MAA) and its 5(th)-6(th) branches in vivo and ex vitro were 4.3/4.6mm, 2.5/2.7mm and 1.9/2.2mm respectively. The total number of MAA's branches was 6-8 in general and its 5(th)-6(th) branches were the longest [(20.0 +/- 7.0) mm, (22.0 +/- 8.2) mm]. The outer diameter of mesenterial anterior vein (MAV) was 1-2 mm wider than that of MAA.


CONCLUSIONS
AT, MAA and its 5(th)-6(th) branches are the preferable vessels for small intestine transplantation. In segmental small intestine transplantation, the length of the small intestine and body weight can be used to primarily select the suitable animals.
Yan
Chao-qi
CQ
Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, China.
Zou
Xiao-ming
XM
Yuan
You-ping
YP
Bai
Chun-zhi
CZ
Song
Mao-li
ML
Li
Xiao-lin
XL
Li
Gang
G
Qin
Hua-dong
HD
D000818:Animals; D001808:Blood Vessels / Q000033:anatomy & histology*; D005260:Female; D007421:Intestine, Small / Q000098:blood supply* / Q000637:transplantation*; D008297:Male; D016377:Organ Transplantation; D013552:Swine; D013556:Swine, Miniature