EP03.03: Findings at first trimester dating ultrasound scans in a tertiary maternity unit in Ireland

To study the finding of the first trimester scan and it is implications on antenatal care. A retrospective review of all dating scans for all public patients that have been performed in Cork University Maternity Hospital between January and December 2017. 6077 dating scans were reviewed from the PACS archive of scans. Data from the scan reports were collected by the author using a structured spreadsheet. Microsoft Excel was used for data analysis. There were 6077 dating scans performed in the ultrasound department. According to the gestational age estimated by ultrasound scan, 4965 of the dating scans were performed between 10 and 13+6 weeks. This counts for 81.7% of the total dating scans. Singleton pregnancy detected in 5951 scans (97.9%). Multiple pregnancies were diagnosed in 112 scans (1.83%) with chorionicity assigned in all cases. Fetuses were diagnosed to be viable in 5950 (97.9%) ultrasound scans. Diagnosis of missed miscarriage was made in 94 ultrasound scans (1.5%) due to the absence of cardiac activity in fetuses with CRL greater than 8mm. Looking at fetal anomalies a total of 25 ultrasound scans were found to be abnormal with increased nuchal translucency being the main abnormality. First trimester dating ultrasound scans in Cork University Maternity Hospital fulfill the criteria according to the international best practice. It assisted in the diagnosis and management of pregnancy problems. EP03.03: Table 1. Estimated gestational age versus number of scans and their percentage out of total scans Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.