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Steps to reduce risk of harm to potentially normal pregnancies

Date:
October 9, 2013
Source:
American College of Radiology (ACR)
Summary:
A panel of 15 medical experts from the fields of radiology, obstetrics-gynecology and emergency medicine has recommended new criteria for use of ultrasonography in determining when a first trimester pregnancy is nonviable (has no chance of progressing and resulting in a live-born baby). These new diagnostic thresholds would help to avoid the possibility of physicians causing inadvertent harm to a potentially normal pregnancy.

A panel of 15 medical experts from the fields of radiology, obstetrics-gynecology and emergency medicine, convened by the Society of Radiologists in Ultrasound (SRU), has recommended new criteria for use of ultrasonography in determining when a first trimester pregnancy is nonviable (has no chance of progressing and resulting in a live-born baby). These new diagnostic thresholds, published Oct. 10 in the New England Journal of Medicine, would help to avoid the possibility of physicians causing inadvertent harm to a potentially normal pregnancy.

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"When a doctor tells a woman that her pregnancy has no chance of proceeding, he or she should be absolutely certain of being correct. Our recommendations are based on the latest medical knowledge with input from a variety of medical specialties. We urge providers to familiarize themselves with these recommendations and factor them into their clinical decision-making," said Peter M. Doubilet, MD, PhD, of Brigham and Women's Hospital and Harvard Medical School in Boston, the report's lead author.

Among the key points made by the expert panel:

• Until recently, a pregnancy was diagnosed as nonviable if ultrasound showed an embryo measuring at least five millimeters without a heartbeat. The new standards raise that size to seven millimeters

• The standard for nonviability based on the size of a gestational sac without an embryo should be raised from 16 to 25 millimeters

• The commonly used "discriminatory level" of the pregnancy blood test is not reliable for excluding a viable pregnancy

The panel also cautioned physicians against taking any action that could damage an intrauterine pregnancy based on a single blood test, if the ultrasound findings are inconclusive and the woman is in stable condition.


Story Source:

The above story is based on materials provided by American College of Radiology (ACR). Note: Materials may be edited for content and length.


Journal Reference:

  1. Edward W. Campion, Peter M. Doubilet, Carol B. Benson, Tom Bourne, Michael Blaivas. Diagnostic Criteria for Nonviable Pregnancy Early in the First Trimester. New England Journal of Medicine, 2013; 369 (15): 1443 DOI: 10.1056/NEJMra1302417

Cite This Page:

American College of Radiology (ACR). "Steps to reduce risk of harm to potentially normal pregnancies." ScienceDaily. ScienceDaily, 9 October 2013. <www.sciencedaily.com/releases/2013/10/131009201051.htm>.
American College of Radiology (ACR). (2013, October 9). Steps to reduce risk of harm to potentially normal pregnancies. ScienceDaily. Retrieved December 25, 2014 from www.sciencedaily.com/releases/2013/10/131009201051.htm
American College of Radiology (ACR). "Steps to reduce risk of harm to potentially normal pregnancies." ScienceDaily. www.sciencedaily.com/releases/2013/10/131009201051.htm (accessed December 25, 2014).

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