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Diagnostic and Surgical Approach to Prenatally Detected Urinary Tract Anomalies

Mile Petrovski
Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki) 2016 November 1, 37 (2-3): 107-113
Regular ultrasound examinations carried out in the second trimester of pregnancy help in detecting many anomalies in the fetal urinary tract. Their percentage ranges from 1% to 3% of all controlled pregnancies. There is a wide spectrum of anomalies that affect the urinary tract, but the most significant are: uretero/hydronephrosis (unilateral or bilateral), kidney agenesis, dysplastic kidney, polycystic and multicystic kidneys, anomalies of ascent, anomalies of kidney rotation or fusion, bladder exstrophy, posterior urethra valve etc. Many of these anomalies do not have impact either on urine flow or on kidney function and hence they can be qualified rather as a condition than as a disease. At the same time, most of the hydronephroses that are seen prenatally are being resolved spontaneously, and they are not detected neither presented postnatally as uretero/hydronephroses of unobstructed type and do not require surgical treatment. Only one tenth of these anomalies are subject to active surgical treatment. Therefore, the assessment of these conditions should be done by a specialized team, who will make adequate therapeutic decisions based on clinical guidelines, as well as will advise the parents on the future clinical implications of the detected anomaly.

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