Dilatation of the Urinary Tract during Pregnancy and Its Management

Management of Acute Hydronephrosis in Pregnancy by Ureteral Stenting

“…In recent years the use of ureteric stents has been pre ferred in the management of different obstructive uropa thies [4,5,8,12]. The placement of a double-pigtail stent allows pregnancy to continue without the need for exter nal drainage and its risks of infection [17].…”

“…Most problems with nephro stomy tubes are mechanical. The tubes get dislodged or drainage is blocked by formation of sediment with its risk Discussion Dilatation of the upper urinary tract in pregnancy is a normal phenomenon that is found in up to 90% of preg nancies [1,2,12], Debate surrounds the likely cause of the urinary tract changes. It seems that both anatomical and hormonal mechanisms contribute [6,13], As primary mechanism partial ureteric compression is caused by the gravid, growing uterus and by dilated ovarian veins [13], The smooth-muscle-relaxant properties of progesterone in addition produce some degree of hormonal ureteric dilatation [6], Nowadays the diagnosis of an obstructed ureter can easily be performed by real-time ultrasound examination [3,15].…”

“…In case of symptomatic ureteric obstruction, after ultrasonic examination and urine microscopy, an intravenous pyelogram is often done to confirm the site and cause of the obstruction. X-rays can be used safely with careful attention to restricting the fetal dosis of radia tion by limiting the number of films, using new X-ray monitoring systems and shielding the fetus as much as possible [11,12].…”

“…Introduction years the use of ureteric stents has been described in the management of all kinds of obstructive uropathies, also during pregnancy [4,5,8,12], Other authors prefer the application of percutaneous nephrostomies [9,10],…”

A Rare Cause of Maternal Hydronephrosis: Y-Type Partial Duplicated Ureter

“…In some of the studies the limited X-ray with lower radiation doses could be used and others suggested that x-ray could be used with fetus shielding 11,12 . However Fang SM.…”