Abstract:
:I developed a single equation that simulated previously published growth charts for very low-birth-weight infants, using birth weight as the only variable. The intent of this study was to validate the equation using infants admitted to our neonatal intensive care unit (NICU) and to determine if this equation could be used as a research tool to compare weight gain among populations. All 171 surviving infants with birth weight < or = 1500 g who received care in our NICU were studied retrospectively. The individual daily weights were compared with the predicted daily weights for each infant using the relative error of the prediction. The relative error of the prediction on all days for all infants was 0.45 +/- 0.13% (mean +/- SEM), and the maximum mean daily relative error of 2.73 +/- 0.90% occurred on Day 9. Black infants had a more positive relative error than white infants (p = 0.0001), due to faster weight gain. Twins gained faster than singletons (p = 0.023). Infants with patent ductus arteriosus (PDA) gained more slowly than normal infants (p = 0.001) after an initial rapid weight gain. Infants with lung disease had initial rapid weight gain similar to infants with PDA, but subsequently were similar to infants without lung disease. This equation accurately predicts weight gain in our population of very low-birth-weight infants. The relative error of the prediction is a useful research tool for determining the effect of clinical conditions or interventions on weight gain.
journal_name
Am J Perinatoljournal_title
American journal of perinatologyauthors
Meetze WHdoi
10.1055/s-2007-993914subject
Has Abstractpub_date
1998-02-01 00:00:00pages
141-4issue
2eissn
0735-1631issn
1098-8785journal_volume
15pub_type
杂志文章abstract:OBJECTIVE:Systemic lupus erythematosus (SLE) increases the risk of complications in pregnancy. Hydroxychloroquine (HCQ) decreases flares and neonatal lupus syndrome. Limited evidence suggests that HCQ also reduces preeclampsia and preterm birth in SLE pregnancies. We studied whether HCQ was associated with lower odds o...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-3402752
更新日期:2020-07-01 00:00:00
abstract::Multiple gestations are increasing in frequency secondary to assisted reproductive technologies; therefore, it will become increasingly important to know how to manage a multiple pregnancy in which an in utero fetal death has occurred. This case report describes the spontaneous resolution of maternal hypofibrinogenemi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994628
更新日期:1993-11-01 00:00:00
abstract::The objective of this paper is to examine whether growth-restricted preterm infants have a different neonatal outcome than appropriately grown preterm infants. All consecutive, singleton preterm deliveries between 27-35 weeks' gestation were included over a 4-year period. Infants with congenital anomalies and infants ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2000-9423
更新日期:2000-01-01 00:00:00
abstract::The aim of this study was to determine the risk of respiratory distress syndrome (RDS) and neonatal death (NND) in relation to birth weight in preterm neonates. A group of 255 singleton preterm neonates born at 22-36 weeks were examined. The mean birth weight for each gestational week was estimated from a fitted curve...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994327
更新日期:1997-10-01 00:00:00
abstract:OBJECTIVE: The purpose of this study was to compare the nulliparous-term-singleton-vertex (NTSV) and the Society of Maternal-Fetal Medicine (SMFM) cesarean birth metrics as tools for quality improvement efforts based on hospital size. MATERIALS AND METHODS: Cesarean birth rates from 275 hospitals from six states were ...
journal_title:American journal of perinatology
pub_type: 杂志文章,多中心研究
doi:10.1055/s-0037-1607985
更新日期:2018-03-01 00:00:00
abstract::Periventricular leukomalacia, a condition characterized by hpoxic-ischemic infarction of deep cerebral white matter, can now be recognized by cranial sonography. The case presented here demonstrates the association of periventricular leukomalacia present at birth with intrauterine paroxysmal supraventricular tachycard...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999826
更新日期:1986-01-01 00:00:00
abstract::Oxygenation instability is a very common problem in the premature infant that manifests as intermittent hypoxemia episodes (HEs). These are particularly frequent in premature infants who are on mechanical ventilation beyond the first weeks after birth. However, they can also occur in spontaneously breathing infants. S...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0038-1637760
更新日期:2018-05-01 00:00:00
abstract::This article evaluates the role of alpha-fetoprotein (AFP) testing in the diagnosis of ruptured membranes in the preterm patient. AFP is normally found in amniotic fluid and is not present in vaginal secretions. Testing for AFP in vaginal fluid was compared with nitrazine evaluation and ferning in two groups of preter...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999500
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:This article compares hemodynamic characteristics of neonates with hypoxic ischemic encephalopathy (HIE) receiving therapeutic hypothermia (TH) with normal versus abnormal brain magnetic resonance imaging (MRI). METHODS:Serial echocardiography (echo) was performed within 24 hours, after 48 to 72 hours of coo...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1629900
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Despite advances in management of persistent pulmonary hypertension of the newborn (PPHN), the risk of mortality and adverse neurological sequelae remains high. Characterizing variation in practices is a crucial step toward improved patient outcome. OBJECTIVE:Evaluate intensive care practices in Canada and ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0032-1310523
更新日期:2012-08-01 00:00:00
abstract::Infants born from mothers with antiphospholipid antibody (aPL) -positive autoimmune disease were prospectively evaluated for anticardiolipin and anti-beta2 glycoprotein I antibodies (group 1) and for growth and neurological development. The results were compared with those obtained from two age-matched control groups ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2006-939533
更新日期:2006-05-01 00:00:00
abstract::In studying the effects of amniotic fluid on bacterial growth in a laboratory model, we noted that the pH of the fluid appeared to exert an independent effect. This study was designed to test the ability to control the growth of Escherichia coli in amniotic fluid simply by controlling two important growth conditions, ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994674
更新日期:1992-03-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate obstetric outcomes in relation to the extent of donor sperm exposure with and without egg donation. MATERIALS AND METHODS:This is a retrospective cohort study in a single tertiary care center. All women with a singleton pregnancy who conceived following sperm donation (S...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1667029
更新日期:2019-01-01 00:00:00
abstract::We assessed the pattern of levo-thyroxine (l-thyroxine) therapy in very premature newborns over a 10-year period. We analyzed the electronic database of a large private neonatal practice group (Pediatrix, Ft. Lauderdale, FL) for 23- to 32-week gestation neonates ( N = 96,813) managed during 1997 to 2006. L-thyroxine u...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0030-1253556
更新日期:2010-10-01 00:00:00
abstract::A 38-year-old para 2 presented with the gradual onset of nausea vomiting and increasing left lower quadrant pain, at 33 weeks' gestation. She was known to have uterine leiomyomas, with ultrasonography depicting an 8-cm intramural fundal leiomyoma. In addition a left lateral nondiscrete 10 x 8-cm mass was depicted at t...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2001-13639
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVE: It is well established that women with a previous vaginal delivery have higher success rates in relation to vaginal birth after cesarean than those without. The aim of this study was to examine the effect of past mode of delivery on contractile parameters of human myometrium in vitro. STUDY DESIGN: Myometri...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-1694980
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:To evaluate if fundal (F) dominance of the electrohysterogram is associated with vaginal delivery and lack of F dominance is associated with cesarean for labor dystocia. STUDY DESIGN:We conducted a prospective cohort study of nulliparous women in spontaneous labor at ≥36 weeks. Clinicians were blinded to ele...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1675621
更新日期:2019-07-01 00:00:00
abstract::Hermansky-Pudlak syndrome (HPS) is a multisystem, autosomal-recessive disorder characterized by oculocutaneous albinism, platelet storage pool deficiency resulting in prolonged bleeding, and ceroid lipofuscin deposition. Affected individuals may suffer from blindness, pulmonary fibrosis, colitis, and bleeding diathesi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0029-1220777
更新日期:2009-10-01 00:00:00
abstract::Elevated serum transaminase levels can have many different etiologies, especially in the pregnant patient. Hypoxic hepatitis is a distinct syndrome caused by decreased hepatic blood flow that presents with a marked, but transient, increase in liver enzymes. A 28-year-old woman, gravida 3, para 2 with history of gastri...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0028-1085065
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to investigate whether maternal bronchial asthma increases the risk for long-term respiratory morbidity of the offspring. STUDY DESIGN:A population-based cohort study compared the incidence of long-term pediatric hospitalizations due to respiratory disease of the offspring of ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1639507
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study is to assess if women with arrested preterm labor (PTL) have an increased risk of preterm delivery (PTD) compared with healthy pregnant women, and if digital examination, fetal fibronectin (fFn) and cervical length (CL) are prognostic markers for PTD after arrested PTL. STUDY DESIGN:Pro...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1374818
更新日期:2015-01-01 00:00:00
abstract::Seventy premature infants (birthweight 1.75 kg or less, gestational age 33 weeks or less) with hemoglobin less than 10 g/dL and hematocrit less than 30% were studied and randomly divided into three groups. All of them received oral elemental iron 3 mg/kg/day and vitamin E 5 mg/kg/day during the study period. Recombina...
journal_title:American journal of perinatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1055/s-2007-994483
更新日期:1995-09-01 00:00:00
abstract::We studied the relationships between fetal hemoglobin concentration, acid base status, and lactate concentration in umbilical venous and fetal heart blood in 157 fetuses affected by blood group incompatibility who had been exposed for 214 fetal blood sampling procedures (cordocentesis in 153 and intracardiac puncture ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994524
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:To determine the risk of gestational diabetes mellitus (GDM) and insulin resistance (IR) in obesity defined by body mass index (BMI), waist-to-hip ratio (WHR), or both combined. METHODS:Secondary analysis of a randomized multicenter trial of antioxidant supplementation versus placebo in nulliparous low-risk ...
journal_title:American journal of perinatology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1055/s-0035-1562928
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:To review developmental outcomes of neonates with mild hypoxic-ischemic encephalopathy (HIE) treated with therapeutic hypothermia (TH). STUDY DESIGN:Neonates ≥35 weeks' gestation with mild HIE/TH (TH group, n = 30) were matched with healthy term-born infants (control group, n = 30) and reviewed for the prese...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1676973
更新日期:2019-11-01 00:00:00
abstract::Objectives This study aims to examine the relationship between hospital birth volume and multiple maternal morbidities among low-risk pregnancies in rural hospitals, urban non-teaching hospitals, and urban teaching hospitals, using a representative sample of U.S. hospitals. Study Design Using the 2011 Nationwide Inpat...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0035-1570380
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE: In 2015, Neonatal Resuscitation Program (NRP) recommended laryngeal mask airway (LMA) as an alternative to the endotracheal tube (ETT) in situations where the provider is "unable to intubate and unable to ventilate." LMA insertion is being taught in the NRP routinely. However, endotracheal intubation is the ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0040-1721379
更新日期:2020-11-29 00:00:00
abstract:OBJECTIVE:The Misgav-Ladach technique is recommended worldwide to perform cesarean sections but there is no consensus about the appropriate technique to use in patients with previous cesarean sections. This study evaluated the feasibility of the Misgav-Ladach technique in patients with previous cesarean sections. STUD...
journal_title:American journal of perinatology
pub_type: 临床试验,杂志文章
doi:10.1055/s-0032-1323580
更新日期:2013-03-01 00:00:00
abstract::We report a case with spontaneous rupture of the renal pelvis during pregnancy. A 34-year-old Japanese woman was referred at 20 weeks' gestation because of sudden severe right flank pain. She had severe colic pain radiating to the right lower abdomen with percussion tenderness at the right costovertebral angle and was...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-2002-28489
更新日期:2002-05-01 00:00:00
abstract::The ultrastructural architecture of colostral cells of mothers of pre- and full-term infants is described. The polymorphonuclears were engaged in vivid phagocytosis of fat droplets. Similar findings were observed on the macrophages. The lymphocytes appeared normal in size and ultrastructure. A small number of eosinoph...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994162
更新日期:1997-07-01 00:00:00