ACCURACY OF ULTRASONOGRAPHY FOR DIAGNOSIS OF FETAL MACROSOMY

Abstract

INTRODUCTION: Fetal macrosomia is a birth weight greater than or equal to 4000g, regardless of gestational age. The weight of the fetus estimated by ultrasound (USG) significantly influences the decision to continue or to terminate the pregnancy. OBJECTIVE: To define the accuracy of USG in the estimative of fetal macrosomia in a municipal maternity hospital in Goiânia. METHODS: Retrospective descriptive transversal epidemiological study carried out at Hospital e Maternidade Dona Íris (HMDI), Goiânia, Goiás. The population consisted of patients undergoing cesarean delivery in 2019, with a total of 2742 people. Inclusion criteria: obstetric USG performed at the HMDI up to 7 days before delivery. Data collection was carried out in the hospital’s database. Patients were ordered in decreasing manner based on the birth weight of the newborns. 1033 patients were selected by convenience. After inclusion and exclusion criteria, the n sample was 189. RESULTS: The accuracy of the USG for diagnosis of fetal macrosomia was 76.2%, sensitivity 59.5% and specificity 80.3%. The rate of caesarean delivery for fetal macrosomia in 2019 at HMDI was 27.5%. CONCLUSION: As it is an exam with greater specificity and a high negative predictive value, obstetric USG has better applicability when associated with clinical suspicion of fetal macrosomia.