Re: Does hypochorionic hemorrhage alters triplo-test results?"reply"

From: AFPPLUS3@aol.com
Wed Mar 31 16:14:35 2004


This may help you with regards to adjusting the patients risk...

Threatened abortion: A risk factor for poor pregnancy outcome, a population-based screening study Joshua L. Weiss, MD,* Fergal D. Malone, MD, John Vidaver, MA, Robert H. Ball, MD, David A. Nyberg, MD, Christine H. Comstock, MD, Gary D. Hankins, MD, Richard L. Berkowitz, MD, Susan J. Gross, MD, Lorraine Dugoff, MD, Ilan E. Timor-Tritsch, MD, Mary E. D’Alton, MD, for the FASTER Consortium Columbia Presbyterian Medical Center, New York, NY – Objective: The purpose of this study was to determine whether patients with first-trimester threatened abortion are at increased risk for poor pregnancy outcome. Study design: A large prospective multicenter database was studied. Subjects were divided into three groups: (1) no bleeding, (2) light bleeding, and (3) heavy bleeding. Univariate and multivariable logistic regression analyses were used. Results: The study comprised 16,506 patients: 14,160 patients without bleeding, 2094 patients with light bleeding, and 252 patients with heavy bleeding. Patients with vaginal bleeding, light or heavy, were more likely to experience a spontaneous loss before 24 weeks of gestation (odds ratio, 2.5 and 4.2, respectively) and cesarean delivery (odds ratio, 1.1 and 1.4, respectively). Light bleeding subjects were more likely to have preeclampsia (odds ratio, 1.5), preterm delivery (odds ratio, 1.3), and placental abruption (odds ratio, 1.6). Heavy vaginal bleeding subjects were more likely to have intrauterine growth restriction (odds ratio, 2.6), preterm delivery (odds ratio, 3.0), preterm premature rupture of membranes (odds ratio, 3.2), and placental abruption (odds ratio, 3.6). Conclusion: First-trimester vaginal bleeding is an independent risk factor for adverse obstetric outcome that is directly proportional to the amount of bleeding.  2004 Elsevier Inc. All rights reserved. KEY WORDS Threatened abortion Spontaneous pregnancy loss Preterm delivery Placental abruption Preterm premature rupture of membranes – First-trimester vaginal bleeding is a common complication that affects 16% to 25% of all pregnancies.1,2 When pregnant patients have bleeding, it may cause stress and anxiety for the mother-to-be about the future outcome of the pregnancy. In general, the incidence of spontaneous abortion after first-trimester bleeding is quoted to be 50% before sonographic evaluation for fetal viability.1,3 If a viable fetus is noted at ultrasound examination after first-trimester vaginal bleeding, 95% to 98% of such pregnancies will still continue beyond 20 weeks of gestation.1,4 Supported by grant No. RO1 HD 38652 from the National Institutes of Health and the National Institute of Child Health and Human Development. * Reprint requests: Joshua L. Weiss, MD, Columbia Presbyterian Medical Center, 622 W 168th St, PH-16-66, New York, NY 10032. E-mail: jw791@columbia.edu http://www.elsevier.com/locate/ajog

American Journal of Obstetrics and Gynecology (2004) 190, 745-50

Leonard H. Kellner Lenetix Medical Screening Laboratory, Inc.

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