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1.
December 2018

Number 7, December 2018

(Replaces Committee Opinion No. 529, July 2012)

ABSTRACT: Placenta accreta spectrum, formerly known as morbidly adherent placenta, refers to the range of pathologic adherence of the placenta, including placenta increta, placenta percreta, and placenta accreta. The most favored hypothesis regarding the etiology of placenta accreta spectrum is that a defect of the endometrial–myometrial interface leads to a failure of normal decidualization in the area of a uterine scar, which allows abnormally deep placental anchoring villi and trophoblast infiltration. Maternal morbidity and mortality can occur because of severe and sometimes life-threaten...


2.
December 2017

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4.
September 2017

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Committee Opinion Number 693, April 2017

(Reaffirmed 2019)

ABSTRACT: Given the increasing availability and complexity of genetic testing, it is imperative that the practicing obstetrician–gynecologist or other health care provider has a firm comprehension of the benefits, limitations, and risks of offering a specific genetic test, as well as the importance of appropriate pretest and posttest counseling. The purpose of this Committee Opinion is to provide an outline of how obstetrician–gynecologists and other health care providers can best incorporate these tests into their current practices and provide appropriate pretest and posttest counseling to p...


Committee Opinion Number 690, March 2017

(Reaffirmed 2019)

ABSTRACT: Carrier screening, whether targeted or expanded, allows individuals to consider their range of reproductive options. Ultimately, the goal of genetic screening is to provide individuals with meaningful information that they can use to guide pregnancy planning based on their personal values. Ethnic-specific, panethnic, and expanded carrier screening are acceptable strategies for prepregnancy and prenatal carrier screening. Because all of these are acceptable strategies, each obstetrician–gynecologist or other health care provider or practice should establish a standard approach that i...


Committee Opinion Number 688, March 2017

(Reaffirmed 2019)

ABSTRACT: The American College of Obstetricians and Gynecologists considers first-trimester ultrasonography to be the most accurate method to establish or confirm gestational age. Pregnancies without an ultrasonographic examination confirming or revising the estimated due date before 22 0/7 weeks of gestation should be considered suboptimally dated. This document provides guidance for managing pregnancies in which the best clinical estimate of gestational age is suboptimal. There is no role for elective delivery in a woman with a suboptimally dated pregnancy. Although guidelines for indicated...


8.
December 2016

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9.
December 2016

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11.
December 2016

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12.
December 2016

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13.
December 2016

Practice Bulletin Number 175, December 2016

(Replaces Practice Bulletin Number 101, February 2009,
and Committee Opinion 297, August 2004)
(Reaffirmed 2018)

Members Only


Number 5, September 2016

(Reaffirmed 2018)

ABSTRACT: This document builds upon recommendations from peer organizations and outlines a process for identifying maternal cases that should be reviewed. Severe maternal morbidity is associated with a high rate of preventability, similar to that of maternal mortality. It also can be considered a near miss for maternal mortality because without identification and treatment, in some cases, these conditions would lead to maternal death. Identifying severe morbidity is, therefore, important for preventing such injuries that lead to mortality and for highlighting opportunities to avoid repeat inj...


Practice Bulletin Number 163, May 2016

(Replaces Practice Bulletin Number 77, January 2007)
(See also Practice Bulletin Number 162, Prenatal Diagnostic Testing for Genetic Disorders) (Reaffirmed 2018)

Members Only


Practice Bulletin Number 145, July 2014

(Replaces Practice Bulletin Number 9, October 1999) (Reaffirmed 2019)

Members Only


Committee Opinion Number 533, August 2012

(Reaffirmed 2018)

Abstract: Prenatal lead exposure has known adverse effects on maternal health and infant outcomes across a wide range of maternal blood lead levels. Adverse effects of lead exposure are being identified at lower levels of exposure than previously recognized in both children and adults. In 2010, the Centers for Disease Control and Prevention issued the first guidelines regarding the screening and management of pregnant and lactating women who have been exposed to lead.


Practice Bulletin Number 116, November 2010

Reaffirmed 2019

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Practice Bulletin Number 106, July 2009

Replaces Practice Bulletin Number 70, December 2005. Reaffirmed 2019

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Committee Opinion Number 278, November 2002

Reaffirmed 2019

ABSTRACT: Clinically significant false-positive human chorionic gonadotropin (hCG) test results are rare. However, some individuals have circulating factors in their serum (eg, heterophilic antibodies or nonactive forms of hCG) that interact with the hCG antibody and cause unusual or unexpected test results. False-positive and false-negative test results can occur with any specimen, and caution should be exercised when clinical findings and laboratory results are discordant. Methods to rule out the presence of interfering substances include using a urine test, rerunning the assay with serial ...


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