Prognostic value of fetal urine beta- 2 microglobuline in vesicoamniotic shunting therapy for fetal obstructive uropathy

• Autores: Gil Guevara, Enrique, Diaz, Ramiro, Bermudez, Carlos
• Formato: artículo
• Fecha de Publicación: 2018
• Institución: Sociedad Peruana de Obstetricia y Ginecología
• Repositorio: Revista SPOG - Revista Peruana de Ginecología y Obstetricia
• Lenguaje: español
• OAI Identifier: oai:ojs.spog:article/2133
• Enlace del recurso: http://www.spog.org.pe/web/revista/index.php/RPGO/article/view/2133
• Nivel de acceso: acceso abierto

Introduction. Fetal obstructive uropathy can be treated early in pregnancy by intrauterine vesicoamniotic shunting, immediately after diagnosis by ultrasound, in specific cases with a favorable prognosis in renal function using fetal urine beta-2 microglobulin. Objective: To determine the changes of beta-2 microglobulin in consecutive samples of fetal urine in 48 – 72 hour-intervals in fetuses with obstructive uropathy at 16 weeks of gestation. Methods: We designed a descriptive and longitudinal study, including 15 pregnant women whose fetuses were diagnosed with obstructive uropathy without chromosomal abnormalities, performing vesicocentesis for urinary biometry. Results: Beta-2 microglobulin values were higher than 4 mg/dL in the first vesicocentesis of all 15 cases and decreased to less than 4 mg/dL in 7 cases (46.6%) after the second vesicocentesis. In all cases when beta-2 microglobulin was less than 8 mg/dL in the first vesicocentesis, there was a decrease to nearly 4 mg/dL (maximum 4.3 mg/dL) in the second vesicocentesis. Conclusions: Vesicoamniotic shunting should be performed in all cases of fetal obstructive uropathy when the values of beta-2 microglobulin are less than 8 mg/dL in the first vesicocentesis.