Validez de la relación del diámetro transverso del cerebelo y la circunferencia abdominal para el diagnóstico de restricción de crecimiento intrauterino en gestaciones mayores de 20 semanas. Hospital José Carrasco Arteaga.

Abstract

Background: Intrauterine growth restriction (IUGR) is a disorder in which the fetus is abnormally small for gestational age, and it constitutes one of the main causes of perinatal and intrauterine morbidity and mortality. Within ultrasound parameters the most valid is the relationship of estimated fetal weight with gestational age. However, without a reliable gestational age this parameter loses its usefulness so a parameter of equal or better efficacy, independent of age is required. Objective: To determine the validity of the relation of the transverse diameter of the cerebellum and the abdominal circumference (DTC / AC) for the diagnosis of intrauterine growth restriction in gestations older than 20 weeks in the José Carrasco Arteaga Hospital. Methodology: Diagnostic test validity study in pregnant women older than 20 weeks. The estimated fetal weight and the reliable gestational age that was determined according to the ultrasound under 20 weeks were used as a gold test. Indicators of diagnostic validity were obtained. Results: The prevalence of intrauterine growth restriction was 14.7%. The mean age was 29.38. The sensitivity of the DTC / AC ratio was 80% and the specificity was 95%, VVP was 72.92%, VVN was 96.43%, with a cutoff of 15.9 (90% sensitivity and 6% false positives). Conclusion: The diagnostic test presented high sensitivity and specificity for the diagnosis of intrauterine growth restriction, being a useful parameter in the independent diagnosis of gestational age.