BACKGROUND: The prevalence of urinary tract infection (UTI) in preterm neonates ranges between 4 and 25%. The need for a radiologic investigation has not yet been established in very low birth weight premature newborns (<1500 g birth weight). PATIENTS AND METHODS: For an 11-year period (1990 to 2001), medical records of 62 very low birth weight premature infants admitted to a Level III neonatal intensive care unit and who developed UTI were reviewed retrospectively. Results of renal ultrasound and voiding cystourethrograms were compared between extremely low birth weight infants (birth weight, <1000 g) (Group A, Patient 34) and premature infants with birth weight between 1001 and 1500 g (Group B, Patient 28). RESULTS: UTI was more common in Group A (12.2%) than in Group B (5.7%) infants. Renal ultrasound detected mild renal pelvic dilatation (unilateral or bilateral) in 9 infants in Group A (26%) and in 1 infant in Group B (3.5%). Voiding cystourethrograms were performed in 26 of 34 (76%) infants in Group A and in 17 of the 28 (61%) premature infants in Group B. Vesicourethral reflux (VUR) was observed in 6 infants, 2 in group A (7.7%) and 4 in Group B (23%). CONCLUSIONS: We found that the rate of VUR was lower in very low birth weight premature newborns than that reported in the medical literature among term newborns who developed UTI. VUR was less frequent in extremely low birth weight infants who developed UTI than in infants weighing 1001 to 1500 g.
BACKGROUND: The prevalence of urinary tract infection (UTI) in preterm neonates ranges between 4 and 25%. The need for a radiologic investigation has not yet been established in very low birth weight premature newborns (<1500 g birth weight). PATIENTS AND METHODS: For an 11-year period (1990 to 2001), medical records of 62 very low birth weight premature infants admitted to a Level III neonatal intensive care unit and who developed UTI were reviewed retrospectively. Results of renal ultrasound and voiding cystourethrograms were compared between extremely low birth weight infants (birth weight, <1000 g) (Group A, Patient 34) and premature infants with birth weight between 1001 and 1500 g (Group B, Patient 28). RESULTS: UTI was more common in Group A (12.2%) than in Group B (5.7%) infants. Renal ultrasound detected mild renal pelvic dilatation (unilateral or bilateral) in 9 infants in Group A (26%) and in 1 infant in Group B (3.5%). Voiding cystourethrograms were performed in 26 of 34 (76%) infants in Group A and in 17 of the 28 (61%) premature infants in Group B. Vesicourethral reflux (VUR) was observed in 6 infants, 2 in group A (7.7%) and 4 in Group B (23%). CONCLUSIONS: We found that the rate of VUR was lower in very low birth weight premature newborns than that reported in the medical literature among term newborns who developed UTI. VUR was less frequent in extremely low birth weight infants who developed UTI than in infants weighing 1001 to 1500 g.
Authors: James L Wynn; Sylvia Tan; Marie G Gantz; Abhik Das; Ronald N Goldberg; Ira Adams-Chapman; Barbara J Stoll; Seetha Shankaran; Michele C Walsh; Kathy J Auten; Nancy A Miller; Pablo J Sánchez; Rosemary D Higgins; C Michael Cotten; P Brian Smith; Daniel K Benjamin Journal: Clin Infect Dis Date: 2011-12-05 Impact factor: 9.079
Authors: Dustin D Flannery; Erik Brandsma; Judy Saslow; Amy B Mackley; David A Paul; Zubair H Aghai Journal: J Matern Fetal Neonatal Med Date: 2017-12-20
Authors: L C Downey; D K Benjamin; R H Clark; K M Watt; C P Hornik; M M Laughon; M Cohen-Wolkowiez; P B Smith Journal: J Perinatol Date: 2012-08-30 Impact factor: 2.521
Authors: Leslie C Pineda; Christoph P Hornik; Patrick C Seed; C Michael Cotten; Matthew M Laughon; Margarita Bidegain; Reese H Clark; P Brian Smith Journal: Early Hum Dev Date: 2015-07-27 Impact factor: 2.079
Authors: José B López Sastre; Antonio Ramos Aparicio; Gil D Coto Cotallo; Belén Fernández Colomer; Manuel Crespo Hernández Journal: Pediatr Nephrol Date: 2007-07-31 Impact factor: 3.714
Authors: L Nowell; C Moran; P B Smith; P Seed; B D Alexander; C M Cotten; J S Wiener; D K Benjamin Journal: J Perinatol Date: 2009-10-08 Impact factor: 2.521