ureter reflux
In vesicoureteral reflux, however, urine that has already collected in the bladder is able to flow backwards from the bladder, up the ureter, and back into the collecting system of the kidney. [1]
In summary, vesicoureteral reflux is a relatively common disease which can be benign if treated appropriately. [2]
Vesicoureteral reflux (VUR) is the abnormal flow of urine from the bladder back into the ureters. [3]
Vesicoureteral reflux (VUR) is an abnormal movement of urine from the bladder into ureters or kidneys. [4]
Vesicoureteral reflux occurs when urine flows from the bladder back into the ureters, and eventually into the kidneys. [5]
About one-third of children with urinary tract infections are found to have vesicoureteral reflux (VUR). [...] The connection between the ureter and bladder on each side is a one-way “flap valve” that prevents urine from backing up into the kidney. [6]
Reflux in the urinary tract means that urine is able to get back up into the kidney after it has drained down into the bladder. [7]
Reflux of urine is one of the more common reasons that children are referred to a pediatric urologist. [2]
Vesicoureteral reflux (VUR) can cause swelling in the ureter and kidney, known as hydroureter and hydronephrosis. [3]
Thus, when the bladder fills and later when it squeezes down to empty, back-up (that is, reflux of urine) is prevented because the valve operates in the same way as when you pinch off a soda straw. [8]
Also, it may be suspected because there is enlargement of the kidney drainage system on an ultrasound test done either before or after birth. [7]
Vesicoureteral reflux can be caused by a structural defect, such as a ureter that did not grow to normal size during fetal development. [5]
The urine drains down tubes called ureters from the kidneys to the bladder, which normally stores urine and empties intermittently by muscular contraction. [8]
A catheter (tube) is passed into the bladder and the bladder is filled with a substance that allows us to see the bladder. [7]
Sources:
[1] Vesicoureteral reflux: Definition from Answers.com
[2] Vesicoureteral Reflux
[3] Vesicoureteral Reflux
[4] Wikipedia, the free encyclopedia writes: - Vesicoureteral …
[5] Vesicoureteral Reflux
[6] (c) UrologyHealth.org - Search Results - Vesicoureteral Reflux
[7] Vesicoureteral Reflux
[8] Vesicoureteral Reflux