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[Urinary obstruction in fetal rabbits. An experimental model].

An original model of urethral ligation on 23 gestational-day fetal rabbits is described, that can be applied in studies of both urinary obstruction and oligohydramnios. The surgical technique is detailed and subsequent urinary obstruction is assessed, as well as the lung weight. In conclusion, this is an easy, mildly aggressive, inexpensive and fast model that can be used to investigate the pathophysiology of urinary obstruction and that of oligohydramnios.