Nomograms of fetal cardiothoracic ratio from 17 to 37 weeks' gestation as assessed by three different measurement techniques and their correlation with gestational age.

OBJECTIVE: To create nomograms for fetal cardiothoracic (CT) ratio as assessed by three different 2-dimensional sonographic measurements, including CT diameter, circumference, and area ratios, in Thai fetuses with a gestational age (GA) of 17-37 weeks, and to evaluate both their correlation with GA or biparietal diameter (BPD) and variability among the three measurement methods. METHODS: Two-dimensional sonographic measurements of fetal CT ratio in 4-chamber view were assessed by three different measurement techniques. The 95% reference intervals and Z-scores of all measurement methods based on GA or BPD were constructed. Intraclass correlation coefficients (ICC) for the reproducibility of each technique were compared. RESULTS: A total of 511 uncomplicated singleton pregnancies were included. The fetal CT ratio values by all measurement techniques gradually and smoothly increased with increasing GA and BPD. The fetal CT circumference ratio showed the least correlation with both GA and BPD. The intraobserver and interobserver reliability coefficients of all techniques demonstrated almost excellent agreement (all ICCs at least 0.87). CONCLUSION: Reference intervals and Z-score reference ranges were developed using three different techniques for fetal CT ratio with a GA of 17-37 weeks. These nomograms are a simple and reliable screening tool for identifying abnormal fetal heart size.

The effect of an educational video on long-acting reversible contraception (LARC) utilization at 6-8 weeks postpartum period: a randomized controlled trial.

PURPOSE: Long-acting reversible contraception is highly effective in preventing unintended pregnancy and unsafe abortion. An educational video administered during early postpartum period might be an effective tool to improve postpartum LARC use. The objectives were to evaluate whether a postpartum educational video about LARC could increase postpartum LARC utilization at 6-8 weeks postpartum and to assess why postpartum women did not receive LARC. METHODS: This randomized-controlled trial was conducted at the postpartum unit of a university Hospital between August 2016 and February 2017. Postpartum women who were aged > 20 years and willing to participate were recruited. Participants allocated to the study group watched the 7-min educational video on LARC methods while the control group did not. To assess LARC utilization, data were collected at 6-8 weeks postpartum using telephone calls and/or medical record review to determine postpartum contraception use and reasons for not using LARC. RESULTS: Two-hundred and seventy participants were enrolled, and the video (135) and non-video (135) groups had similar baseline characteristics. In the video group, 57.8% (95% CI 49.0-66.2) reported using a LARC method, compared to 25.9% (95% CI 18.8-34.2) in the non-video group (p < 0.05). The reasons for not using LARC in both groups were inconvenience of access (42.0-43.8%) and uncertainty about methods (17.0-24.6%). CONCLUSION: The educational video introduced at immediate postpartum period was efficacious in increasing the utilization of LARC at 6-8 weeks postpartum. Inconvenience of access was the most common reason cited for not using LARC. CLINICAL TRIAL REGISTRATION NUMBER: Clinicaltrials.in.th TCTR20171225001 "retrospectively registered".