FETAL MORPHOLOGICAL ULTRASOUND AND THE MAIN FINDINGS OF THE CENTRAL NERVOUS SYSTEM

Abstract

Introduction: Prenatal diagnosis of malformations is an important method of prevention and control of congenital anomalies. Central nervous system (CNS) malformations among these are the most common. Ultrasound during pregnancy plays a prominent and influential role in prenatal assessment of the central nervous system. Objectives: to analyze the main findings of central nervous system alterations in fetal morphological ultrasound. Methods: This is a cross-sectional, descriptive, retrospective and quantitative study, with secondary data collection. The sample consisted of 929 second-trimester morphological ultrasounds performed from January 2020 to January 2021, at Clínica Fértile. Results: 929 reports were registered, of which 667 (71.8%) correspond to women under 35 years of age and 262 (28.2%) women over 35 years of age. Of these, 56 (6.0%) reports showed some type of morphological change and changes in the central nervous system were found in 15 reports with a prevalence of 1.61%. In women under 35 years, the prevalence of alterations in the central nervous system was 1.18%, the main alteration being hydrocephalus. in women over 35 years, the prevalence of alterations in the central nervous system was 0.43%, the main alteration being ventriculomegaly. Conclusion: The prevalence of alterations in the central nervous system is 1.61%. In women under 35 years, the prevalence of alterations in the central nervous system was 1.18%, the main alteration being hydrocephalus. In women over 35 years, the prevalence of alterations in the central nervous system was 0.43%, the main alteration being ventriculomegaly.