Prenat Diagn. 2019 Oct 25.
OBJECTIVE: To determine if using a checklist of specific ultrasound image criteria to screen the fetal heart improves the cardiac exam completion rate, defined as the ability to classify the heart as normal or abnormal.
METHOD: This is a retrospective cohort study of patients with singleton pregnancies who underwent a fetal anatomy survey between 18 and 28 weeks' gestation. A checklist was used from 9/1/15 to 3/31/16 to categorize exams as complete-normal, complete-abnormal, or incomplete. Performance was compared with a seven-month period prior to checklist introduction (12/1/14-6/30/15).
RESULTS: Checklist utilization improved the cardiac exam completion rate by 8.9%. With the checklist, 1,083/1,202 exams (90.1%) were completed compared to 987/1,193 (82.7%) pre-checklist, p<0.001. We did not detect a change in cases classified as abnormal and referred for echocardiography: 25 (2.1%) with the checklist and 16 (1.3%) pre-checklist, p=0.16. We did not detect more congenital heart disease, 12 (1.0%) with checklist screening, 5 (0.4%) pre-checklist, p=0.14. Critical congenital heart disease was not missed in either group.
CONCLUSION: Using the checklist improved the cardiac exam completion rate. There was no change in congenital heart disease detection.