Objective: The purpose of this study was to construct nomograms of placental volumes according to gestational age and estimated fetal weight.
Methods: From March to November 2007, placental volumes were prospectively measured by ultrasonography in 295 normal pregnancies from 12 to 40 weeks' gestation and correlated with gestational age and estimated fetal weight. Inclusion criteria were healthy women, singleton pregnancies with normal fetal morphologic characteristics on ultrasonography, and confirmed gestational age by first-trimester ultrasonography.
Results: The mean placental volume ranged from 83 cm(3) at 12 weeks to 427.7 cm(3) at 40 weeks. Linear regression yielded the following formula for the expected placental volumes (ePV) according to gestational age (GA): ePV (cm(3)) = -64.68 + 12.31 x GA (r = 0.572; P < .001). Placental volumes also varied according to estimated fetal weight (EFW), and the following mathematical equation was also obtained by linear regression: ePV = 94.19 + 0.09 x EFW (r = 0.505; P < 0.001).
Conclusions: Nomograms of placental volumes according to gestational age and estimated fetal weight were constructed, generating reference values.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.7863/jum.2008.27.11.1583 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Severe maternal morbidity contributed by obstetric hemorrhage: Maryland, 2020-2022.
Am J Obstet Gynecol MFM
January 2025
Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St Suite E8527, Baltimore, MD 21205; Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St Suite E8527, Baltimore, MD 21205; Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, 550 North Broadway Baltimore, MD 21205.
Background: Obstetric hemorrhage is the leading cause of maternal mortality and severe maternal morbidity (SMM) in Maryland and nationally. Currently, through a quality collaborative, the state is implementing the Alliance for Innovation on Maternal Health (AIM) patient safety bundle on obstetric hemorrhage.
Objective: To describe SMM events contributed by obstetric hemorrhage and their preventability in Maryland.
Investigating the Impact of Sumac Capsules on Postpartum Bleeding among Women at Risk of Bleeding: a three-blind randomized clinical trial.
J Pharmacopuncture
December 2024
School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran.
Objectives: Postpartum hemorrhage is a leading cause of maternal mortality worldwide. Emerging evidence suggests that the sumac plant possesses astringent and anti-inflammatory properties that may help reduce menstrual bleeding. Therefore, this study aimed to determine the effect of sumac capsules on postpartum bleeding among women at risk of excessive bleeding.
View Article and Find Full Text PDFEffects of exercise on vascular remodelling and fetal growth in uncomplicated and abortion-prone mouse pregnancies.
Sci Rep
December 2024
Robinson Research Institute, School of Biomedicine, University of Adelaide, Adelaide, SA, Australia.
Studies in humans and rodents show exercise in pregnancy can modulate maternal blood pressure, vascular volume, and placental efficiency, but whether exercise affects early uteroplacental vascular adaptations is unknown. To investigate this, CBA/J female mice mated with BALB/c males to generate healthy uncomplicated pregnancies (BALB/c-mated) or mated with DBA/2J males to generate abortion-prone pregnancies (DBA/2J-mated), were subjected to treadmill exercise (5 days/week, 10 m/min, 30 min/day for 6 weeks before and throughout pregnancy), or remained sedentary. In uncomplicated pregnancies, exercise caused symmetric fetal growth restriction in fetuses evidenced by reductions in fetal weight, crown-to-rump length, abdominal girth and biparietal diameter.
View Article and Find Full Text PDFProactive Management of Lactation in the Birth Hospital to Ensure Long-Term Milk Production and Sustainable Breastfeeding.
J Midwifery Womens Health
December 2024
Midwifery Practice at Tampa General Hospital, Tampa, Florida.
Individuals who are at risk of not achieving a full milk supply are often overlooked in scientific literature. There is available guidance to help establish an adequate milk supply for healthy individuals experiencing a physiologic labor and birth, and there are robust recommendations for the lactating parents of small, sick, and preterm newborns to ensure that these newborns can receive human milk. Missing from the literature are clinical practice guidelines that address the preexisting health, pregnancy, birth, or newborn-related risk factors for suboptimal lactation.
View Article and Find Full Text PDFTherapeutic Effects of Human Placental Extracts Eye Drops in Experimental Dry Eye and Alkali Burn.
J Ocul Pharmacol Ther
December 2024
Department of Ophthalmology, Chonnam National University Medical School and Hospital, Gwangju, Korea.
To evaluate the efficacy of human placental extract (HPE) eye drops compared to that of carboxymethylcellulose (CMC) and human peripheral blood serum (HPBS) eye drops in a mouse model of experimental dry eye (EDE) and corneal alkali burns. EDE and alkali burn models were induced in C57BL/6 mice using desiccating stress and NaOH, respectively. In both the EDE and alkali burn models, treatment groups received CMC, HPBS, or HPE eye drops.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!