Intrauterine fetal ureteral obstruction.
Intrauterine fetal ureteral obstruction.
复制标题
胎儿宫内输尿管梗阻。
DOI：
10.1016/s0022-5347(17)60388-4
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发表时间：
1973
期刊：
影响因子：
--
通讯作者：
E. Tanagho
中科院分区：
文献类型：
--
作者：
E. Tanagho
材料与方法在妊娠中期（70 ~ 75天）的胎羊中，通过将一段输尿管封闭在已知内径的硅橡胶管中，这种硅橡胶管起初只是部分阻塞。随着输尿管的生长，虽然狭窄的管腔仍然保持通畅，但功能上，梗阻逐渐完全。硅橡胶管防止输尿管段增宽，使其仅能延长。95天时，通过阻塞尿道引起间接输尿管梗阻，3例导致反流，1例导致梗阻性输尿管改变。
MATERIALS AND METHODSDirect upper ureteral obstruction was surgically induced in the fetal lamb at mid term (70 to 75 days) by enclosing a segment of ureter in a silastic tube of known internal diameter., _, This silastic tube is at first only partially obstructive. With ureteral growth, although a patent narrow lumen is still maintained, functionally, the obstruction gradually becomes complete. The silastic tube prevents the ureteral segment from widening, allowing it to lengthen only. Indirect ureteral obstruction was induced by obstructing the urethra at 95 days, 3 resulting in reflux in 1 instance and obstructive ureteral changes in another.