alexa Endovaginal US: demonstration of cardiac activity in embryos of less than 5.0 mm in crown-rump length.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Levi CS, Lyons EA, Zheng XH, Lindsay DJ, Holt SC

Abstract Share this page

Abstract The authors reviewed the endovaginal ultrasonographic (US) findings for 96 patients with embryos with crown-rump lengths of less than 5.0 mm. Of the 71 patients with adequate follow-up, initial endovaginal US demonstrated cardiac activity in 46 embryos and no cardiac activity in 25. Initial endovaginal US failed to demonstrate cardiac activity in five of 40 normal embryos, three with crown-rump lengths of less than 2.0 mm and two, between 2.0 and 3.9 mm. Endovaginal US identified cardiac activity in all 12 normal embryos with crown-rump lengths of 4.0-4.9 mm. The presence of cardiac activity was associated with a 24\% risk of spontaneous abortion. In embryos between 2.0 and 4.9 mm in crown-rump length, absent cardiac activity was associated with a 91\% risk of abortion. All 17 patients with vaginal bleeding and embryos demonstrating no cardiac activity subsequently aborted. The embryonic yolk sac was absent in 35\% of patients who subsequently aborted. Variation outside of the 95\% confidence limits of the mean for crown-rump length compared with mean gestational sac diameter and yolk sac diameter was also helpful in predicting an abnormal outcome. Nonvisualization of cardiac activity at endovaginal US in embryos less than 4.0 mm in crown-rump length may be normal and warrants follow-up US examination. This article was published in Radiology and referenced in Journal of Addiction Research & Therapy

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords