title: Sonographic biometry in obstructive uropathy of children: preoperative diagnosis and postoperative monitoring.
abstract: Renal sonography was performed in 92 children with obstructive uropathy or vesicoureteral reflux preoperatively and at follow-up. Renal volume and the anteroposterior diameter of the renal pelvis proved to be the most reliable morphometric criteria for objective sonographic staging and follow-up of urinary tract obstruction. If transient obstruction occurred after uncomplicated antireflux ureterovesico-plasties (n = 41), it lasted at most 4 weeks. Kidneys with transient postoperative ureterovesical junction obstruction (n = 21) reverted to normal sonographic pattern within 4 weeks following ureteral reimplantation. In cases of ureteropelvic junction obstruction (n = 30), it took up to 6 months for the majority of kidneys to present almost normal sonographic findings. Sonographic biometry and the knowledge about the uncomplicated postoperative course render postsurgical monitoring easier and more reliable.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000175:diagnosis*; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011182:Postoperative Care; D011300:Preoperative Care; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000175:diagnosis* / Q000601:surgery; D014718:Vesico-Ureteral Reflux / Q000175:diagnosis* / Q000601:surgery