14 results match your criteria ga-specific reference

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Gestational Age and Neonatal Electrocardiograms.

Pediatrics 2021 Nov 24. Epub 2021 Nov 24.

Department of Cardiology, Herlev-Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark.

Objectives: Interpretation of the neonatal electrocardiogram (ECG) is challenging due to the profound changes of the cardiovascular system in this period. We aimed to investigate the impact of gestational age (GA) on the neonatal ECG and create GA-specific reference values.

Methods: The Copenhagen Baby Heart Study is a prospective general population study that offered cardiac evaluation of neonates. Read More

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November 2021

Gestational age-specific reference values of placental thickness in normal pregnant women.

Women Health 2019 08 21;59(7):718-729. Epub 2019 Feb 21.

d Non-Communicable Diseases Research Center , Alborz University of Medical Sciences , Karaj , Iran.

The aim of this study was to determine the reference values of the placental thickness in 400 normal pregnant women during weeks 16-41 of gestation who were referred to the Mahdiyeh hospital during January 2014-February 2015. The placental thickness at the junction of the umbilical artery was measured using ultrasonography. Multivariable linear regression was used to model the mean placental thickness and assess associations with measured covariates, including gestational age (GA). Read More

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New body composition reference charts for preterm infants.

Am J Clin Nutr 2017 01 2;105(1):70-77. Epub 2016 Nov 2.

Division of Neonatology, School of Medicine, University of Minnesota, Minneapolis, MN.

Background: The American Academy of Pediatrics (AAP) has recommended that nutritional management of the preterm infant should aim to achieve body composition that replicates the in utero fetus, but intrauterine body composition reference charts for preterm infants are lacking.

Objective: Our objective was to create body composition reference curves for preterm infants that approximate the body composition of the in utero fetus from 30 to 36 wk of gestation.

Design: A total of 223 ethnically diverse infants born at 30 + 0 to 36 + 6 wk of gestation were enrolled. Read More

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January 2017

Gestational Age-specific Cut-off Values Are Needed for Diagnosis of Subclinical Hypothyroidism in Early Pregnancy.

J Korean Med Sci 2015 09 13;30(9):1308-12. Epub 2015 Aug 13.

Department of Obstetrics and Gynecology, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea.

During the first trimester of pregnancy, thyroid-stimulating hormone (TSH) >2.5 mIU/L has been suggested as the universal criterion for subclinical hypothyroidism. However, TSH levels change continuously during pregnancy, even in the first trimester. Read More

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September 2015

Efficacy of a first course of Ibuprofen for patent ductus arteriosus closure in extremely preterm newborns according to their gestational age-specific Z-score for birth weight.

PLoS One 2015 13;10(4):e0124804. Epub 2015 Apr 13.

Department of Neonatal Medicine, Angers University Hospital, Angers, France.

Objective: Therapeutic strategies for patent ductus arteriosus (PDA) in very preterm infants remain controversial. To identify infants likely to benefit from treatment, we analysed the efficacy of a first course of ibuprofen in small-for-gestational age (SGA) newborns.

Study Design: This single-centre retrospective study included 185 infants born at 24+0-27+6 weeks of gestation with haemodynamically significant PDA, who were treated by intravenous ibuprofen (Pedea): 10 mg/kg on day one and 5 mg/kg on days two and three. Read More

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The effect of early catch-up growth on health and well-being in young adults.

Ann Nutr Metab 2014 18;65(2-3):220-6. Epub 2014 Nov 18.

Department of Life Style, TNO, Leiden, The Netherlands.

Aim: To study the effect of catch-up growth in the 1st year on cognition, health-related quality of life (HRQoL), problem behavior and growth in young adults.

Methods: We included individuals without severe complications and born small for gestational age (SGA; n = 228 for weight, n = 203 for length) or with a low head circumference (HC, n = 178) or a low weight adjusted for length (n = 64) in the Collaborative Project on Preterm and SGA Infants. Neonatal growth was standardized (standard deviation scores for gestational age, SDSGA) according to GA-specific reference charts. Read More

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Gestational age-specific reference ranges of hepcidin in cord blood.

Neonatology 2014 27;106(2):133-9. Epub 2014 Jun 27.

Department of Neonatology, University Children's Hospital of Tübingen, Tübingen, Germany.

Background: Iron deficiency (ID) contributes to anaemia of prematurity, and hence the reliable assessment of iron nutrition status appears to be mandatory.

Objective: To establish gestational age (GA)-specific reference ranges for hepcidin concentrations in cord blood [Hep(CB)] of preterm and term infants and to identify pre- and perinatal confounding factors.

Methods: This is a prospective observational study including 221 infants (GA at birth: 24-42 weeks). Read More

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Reference charts for fetal corpus callosum length: a prospective cross-sectional study of 2950 fetuses.

J Ultrasound Med 2014 Jun;33(6):1065-78

Department of Prenatal Diagnosis, Artemisia Fetal-Maternal Medical Center, Rome, Italy (P.C., F.P., M.G., M.L.M., C.G.); Department of Statistics, Sapienza University of Rome, Rome, Italy (P.B., M.A.); Scientific Direction, Biostatistical Unit, Regina Elena Cancer Institute, Rome, Italy (D.G.); Department of Obstetrics and Gynecology, Catholic University of Sacred Heart, Rome, Italy (L.V.); and Department of Obstetrics and Gynecology, Campus Bio Medico, University of Rome, Rome, Italy (A.A.).

Objectives: The purpose of this study was to establish reference charts for fetal corpus callosum length in a convenience sample.

Methods: A prospective cross-sectional study was conducted at the Artemisia Fetal-Maternal Medical Center between December 2008 and January 2012. Among 16,975 fetal biometric measurements between 19 weeks and 37 weeks 6 days' gestation, 3438 measurements of the corpus callosum (20. Read More

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Impact of gestational age on nuchal fold thickness in the second trimester.

J Ultrasound Med 2014 Apr;33(4):687-90

MRCOG, Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074.

Objectives: The purpose of this study was to establish gestational age (GA)-specific nomograms for nuchal fold thickness between 16 and 24 weeks.

Methods: This retrospective cross sectional study included 32,207 women who underwent a second-trimester anomaly scan at the Fetal Care Center of National University Hospital from January 2005 to April 2011. Nomograms were plotted for nuchal fold thickness at each gestation to study its variation with GA. Read More

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[Morbidity and mortality in newborns at the limit of viability in Spain: a population-based study].

An Pediatr (Barc) 2014 Jun 20;80(6):348-56. Epub 2014 Feb 20.

Hospital Clínic, Barcelona, España.

Introduction: Perinatal care in extremely immature newborns is a clinical and ethical problem of great importance for professionals and families, and requires that the available information on the chances of child survival is of the highest quality. The aim of this study was to determine the specific rates of survival at hospital discharge, and survival without major morbidity in newborns with a gestation age (GA) ≤ 26 weeks in Spain.

Patients And Methods: We included live newborns ≤ 26 weeks admitted to the collaborating centers of the SEN1500 network (2004-2010). Read More

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C reactive protein and procalcitonin: reference intervals for preterm and term newborns during the early neonatal period.

Clin Chim Acta 2011 May 19;412(11-12):1053-9. Epub 2011 Feb 19.

National Research Council, Institute of Molecular Medicine, Rome, Italy.

Background: There is still no study evaluating the influence of gestational age (GA) per se on C reactive protein (CRP) and procalcitonin (PCT) reference intervals. We therefore investigated how length of gestation, age (hours), and prenatal and perinatal variables might influence the levels of CRP and PCT. We also determined 95% age-specific reference intervals for CRP and PCT in healthy preterm and term babies during the early neonatal period. Read More

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The use of customised versus population-based birthweight standards in predicting perinatal mortality.

BJOG 2007 Apr;114(4):474-7

Department of Pediatrics, McGill University Faculty of Medicine, Montreal, Quebec, Canada.

Objective: The objective of this study was to critically examine potential artifacts and biases underlying the use of 'customised' standards of birthweight for gestational age (GA).

Design: Population-based cohort study.

Setting: Sweden. Read More

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Estimation of optimal birth weights and gestational ages for twin births in Japan.

BMC Public Health 2006 Feb 24;6:45. Epub 2006 Feb 24.

Department of Education Training Technology and Development, National Institute of Public Health, 2-3-6 Minami, Wako-shi, Saitama, 351-0197, Japan.

Background: As multiple pregnancies show a higher incidence of complications than singletons and carry a higher perinatal risk, the calculation of birth weight - and gestational age (GA)-specific perinatal mortality rates (PMR) for multiple births is necessary in order to estimate the lowest PMR for these groups.

Methods: Details of all reported twins (192,987 live births, 5,539 stillbirths and 1,830 early neonatal deaths) in Japan between 1990 and 1999 were analyzed and compared with singletons (10,021,275 live births, 63,972 fetal deaths and 16,862 early neonatal deaths) in the annual report of vital statistics of Japan. The fetal death rate (FDR) and PMR were calculated for each category of birth weight at 500-gram intervals and GA at four-week intervals. Read More

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February 2006

Reference values for an index of fetal aortic isthmus blood flow during the second half of pregnancy.

Ultrasound Obstet Gynecol 2003 May;21(5):441-4

Fetal Cardiology Unit, Pediatric Cardiology Service, Department of Pediatrics, Ste-Justine Hospital, University of Montreal, Quebec, Canada.

Objective: During fetal life, the parallel position of the two cardiac ventricles confers a special status to the aortic isthmus. Flow through the isthmus reflects the balance between the performances of the two ventricles and their respective peripheral impedances. This study proposes a fetal aortic isthmus flow velocity index and its reference values defined on the basis of gestational age (GA). Read More

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