Think about it: Your doctor will always have medical-grade, accurate equipment, approved by any required safety agencies.īut practically any company can create a device (or perhaps worse - an app for a device), call it a doppler, and sell it online. One of the reasons for this is because home fetal dopplers can be of poor quality. In other words, they’re meant to be used in between visits to the doctor, not instead of visits to the doctor. the one at the doctor’s officeĪ home fetal doppler can’t be used in place of a doctor’s appointment. It’s important to know about the safety hazards of at-home fetal dopplers before you use one. So what’s the harm? Well, possibly very little.īut not so fast. It may also ease anxiety and help you feel more connected to your baby. Some dopplers (yes, even those you encounter at your OB’s office!) only detect it after about 12 weeks.įor many, hearing the heartbeat at the doctor’s office is a magical, joyful, and reassuring experience - and the time between appointments is just so darn long to wait to hear that sweet sound again! The idea of listening to the heartbeat in between doctor’s appointments is appealing. If your doctor can’t hear a heartbeat in the first trimester, it’s not necessarily a cause for concern. When you go to your doctor for a check-up, they’ll use one of these devices - hopefully, not without warming the ultrasound gel first! - to detect your baby’s heartbeat from around 8 to 10 weeks. Many people are anxious for peace of mind or eager to bond with baby - which is why at-home fetal dopplers are so popular.Ī fetal doppler - whether at the doctor’s office or purchased for home use - is a hand-held ultrasound device that uses soundwaves to listen to a fetal heartbeat. ( ).Or maybe you’re not so nervous as you are wanting to bond with your baby a little more - looking for a way to connect.įirst, rest assured that you’re not alone in your concerns. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. The effectiveness of fetal Doppler to identify pregnant women at high risk for term SB and neonatal deaths needs further study on a larger sample size.ĭiagnostic effectiveness fetal Doppler neonatal mortality stillbirth. Conclusion Integration of fetal Doppler with routine third-trimester antenatal scans can help identify pregnant women at high risk for late SB. The AUROC of Doppler measures was excellent for late SB but did not show discriminatory ability for term SB or neonatal deaths. Mean UtA PI, umbilical artery PI, MCA PI, and CPR were significantly associated with late SB and not term SB. An abnormal Doppler study was significantly associated with late stillbirths (OR 37.2, 95% CI: 2.05, 674) but not with term SB (OR: 3.38, 95% CI: 0.76, 15) or neonatal deaths (OR 1.39, 95% CI: 0.40, 4.87). Results Screening of 1,326 pregnant women in the third trimester of pregnancy between September 2019 and February 2022, identified 308 (23.23%) abnormal Doppler studies, 11 (0.83%) SB, and 11 (0.84%) neonatal deaths. Parameters of diagnostic effectiveness such as sensitivity, specificity, positive and negative predictive values and likelihood ratios, diagnostic odds ratio, and the area under receiver operator characteristic (AUROC) curve were assessed. Neonatal death was defined as the demise of a live-born baby within the first 28 days of life. Late stillbirth (SB) was defined as a fetal loss between 28 and 36 gestation weeks and the term SB was defined as a fetal loss at ≥ 37 gestation weeks. The results of the fetal Doppler study closest to childbirth were considered for analysis. Methods The mean uterine artery (UtA) pulsatility index (PI) > 95th percentile, umbilical artery PI > 95th percentile, middle cerebral artery (MCA) PI < 5th percentile, and/or cerebroplacental ratio (CPR) < 5th percentile in the third trimester fetal Doppler study was considered as abnormal. Aim To determine the diagnostic effectiveness of third-trimester fetal Doppler studies in pregnancy for stillbirths and neonatal mortality in the Samrakshan program of the Indian Radiological and Imaging Association (IRIA).
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