Keller M S, Weiss R M, Rosenfield N S
Department of Diagnostic Imaging and Pediatrics, Yale University School of Medicine, New Haven, Connecticut.
J Urol. 1993 Mar;149(3):553-5. doi: 10.1016/s0022-5347(17)36145-1.
The presence or absence of ureteral peristalsis was noted during real-time sonography of 61 dilated ureters in children. The findings were correlated with diagnoses established using standard radiographic and radionuclide imaging techniques. Of the 47 dilated ureters that exhibited peristalsis 44 were classified as not obstructed when assessed with standard imaging and functional studies. The most frequent etiology for ureteral dilatation associated with peristalsis was high grade vesicoureteral reflux (31 ureters). Three peristaltic ureters were shown to be mildly to moderately obstructed. Absence of peristalsis was noted in 14 ureters: 13 were severely obstructed, while in 1 the involved kidney had no function. In the pediatric age group the demonstration of peristalsis in a dilated ureter is frequently associated with vesicoureteral reflux and is seldom associated with obstruction. Obstruction, if present, usually is mild. Aperistaltic ureterectasis implies severe obstruction or poor renal function.
在对61例小儿扩张输尿管进行实时超声检查时，记录输尿管蠕动的有无。将这些检查结果与采用标准放射学和放射性核素成像技术所确立的诊断结果进行对比。在47例显示有蠕动的扩张输尿管中，经标准成像和功能研究评估，44例被归类为无梗阻。与输尿管蠕动相关的输尿管扩张最常见的病因是重度膀胱输尿管反流（31例输尿管）。有3例蠕动的输尿管显示为轻度至中度梗阻。14例输尿管未见蠕动：13例为重度梗阻，1例受累肾脏无功能。在儿童年龄组中，扩张输尿管出现蠕动常常与膀胱输尿管反流相关，很少与梗阻相关。如果存在梗阻，通常为轻度。无蠕动性输尿管扩张意味着重度梗阻或肾功能不佳。
