泌尿系梗阻中山大學(xué)外科學(xué)(參考版)
2024-10-21 16:59本頁面
【正文】 Urinary tract obstruction （泌尿系梗阻） Daohu Wang Associate Professor Department of urology The 1st Affiliated Hospital SUMS Introduction ? a system of tube ? obstruction will affect secretion and excretion of urine ? final results: hydronephrosis, renal failure ? obstruction at different place Causes of obstruction ? classification: mechanical and dynamical congenital, acquired and iatrogenic ? mon causes: stone, tumor, ectopic vessel, nephroptosis, stricture, BPH, reflux, pregnancy Pathophysiology ? dilatation of the urinary tract ? early stage: tubular wall hypertrophies ? late stage: thinning of the tubular wall ? prolonged obstruction below the bladder: hydronephrosis ? urinary back flow
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