Reflux nephropathy is what reason?
Reflux renal disease etiology is bladder ureter reflux.Bladder ureter reflux is urine by unsound bladder ureter joint reflux.Physiological conditions, the last paragraph of the ureter flapper mechanism fully functional performance to prevent the reverse flow of anatomy.The flapper mechanisms include: ureteral oblique line through the bladder wall;Ureteral wall specific muscle groups;Ureteral orifice mucosal flap.The integrity of the mechanism of the flapper anatomical features change, will lead to a primary or secondary bladder ureter reflux.
Primary bladder ureter reflux: clinical are the most common primary bladder ureter reflux.Found in children.For bladder submucosal ureter congenital anomalies, such as the bladder submucosal ureter congenital too short, bladder deltoid muscle tissue dysplasia, etc.As children grow, bladder perfect base development, reflux most will disappear.Secondary bladder ureter reflux: secondary bladder ureter reflux can be secondary to a variety of reasons caused by bladder neck or urethral obstruction (high pressure), neuropathic bladder, bladder muscle weakness, bladder tuberculosis and bladder after surgery (cause of ureteral injury), etc.
Bladder ureter reflux classification: at present, the widely accepted is the international children's bladder ureter reflux group of reflux classification standard: Ⅰ level only involving ureter.Ⅱ level involving ureter and renal pelvis and calyces without expansion, calyces dome is normal.Ⅲ mild-moderate donor ureter expansion and (or) bending, mild-to-moderate expansion of the renal pelvis, dome not or only slightly dull.Class Ⅳ ureteral moderate expansion and (or) bending, calyces moderate expansion of the renal pelvis, dome acute disappear but most calyces tit shape.Ⅴ ureter, calyces serious expansion and bending of the renal pelvis, most calyces tit shape.
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