Abstract:
:The aim of the European Community Multicentre Trial on Fetal ECG Analysis During Labour was to collect a clinical database of electrocardiograms on which the different patterns of ST waveform and time interval changes, so far identified, could be studied. The aim of this paper was to study the PR-RR relationship and the P wave patterns during normal labour. One thousand three hundred fifty accelerations and 350 decelerations were analysed in 618 labours, all with normal fetal outcome. All ECGs were recorded with the STAN recorder and linked to a PC system for data acquisition and analysis. A positive relationship between P-R and R-R intervals was identified in all reactive fetal heart rate traces. A P-R shortening was identified also with all decelerations of more than 40 bpm from the baseline, resulting in a negative PR-RR relationship. Experimental works have described a P-R shortening concurrent with the maximal R-R lengthening during acutely induced hypoxemia in fetal lambs. In our study normal cord acid-base status indicated that the majority of bradycardia episodes recorded were not related to acute hypoxemia: PR-RR relationship changes seem therefore to indicate an intact physiological fetal heart adaptive response to rapid change in the environment of either hypoxemic or haemodynamic origin. A negative PR-RR relationship by itself seems to be nothing more than an indicator of decelerations during labour and seems unable to discriminate between decelerations of different origin. Finally the P wave was no longer detectable during decelerations of more than 800 msec: in this situation the P-R interval can not be reliably measured.
journal_name
J Perinat Medjournal_title
Journal of perinatal medicineauthors
Luzietti R,Erkkola R,Hasbargen U,Mattson LA,Thoulon JM,Rosén KGdoi
10.1515/jpme.1997.25.1.27subject
Has Abstractpub_date
1997-01-01 00:00:00pages
27-34issue
1eissn
0300-5577issn
1619-3997journal_volume
25pub_type
临床试验,杂志文章,多中心研究abstract:OBJECTIVE:Determine social factors related to pregnancy among young adolescents. METHODS:We obtained socio-demographic data from early adolescent nulliparas aged < or = 15 years. RESULTS:During the study period at the Enrique C. Sotomayor Obstetrics and Gynecology Hospital, Guayaquil-Ecuador 201 early adolescent null...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2004.063
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVES:To assess the association of chronic hepatitis B virus (HBV) infection with preterm birth (PTB). METHODS:A cohort of 20,498 pregnant women (497 HBV carriers with 20,001 non-HBV controls) with normal alanine aminotransferase (ALT) levels was selected from the Obstetrics & Gynecology Hospital of Nantong Unive...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,meta分析
doi:10.1515/jpm-2016-0201
更新日期:2017-11-27 00:00:00
abstract:AIM:Inhaled nitric oxide (iNO) is used to treat neonates with hypoxic respiratory failure (HRF). The aim of this study was to determine clinical characteristics and factors associated with non-response to iNO therapy that may assist in clinical management and weaning strategies. METHODS:Retrospective chart review. The...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2015-0210
更新日期:2016-08-01 00:00:00
abstract::A 26 year old previously healthy woman who was treated with fenoterol for premature labor at 30 gestational weeks developed pulmonary edema requiring intubation and mechanical ventilation. Vaginal delivery was accomplished with forceps after tocolytic therapy had been stopped. Right heart catheterization with measurem...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1988.16.1.45
更新日期:1988-01-01 00:00:00
abstract::Background We examined the influence of companionship and the use of complementary therapies on adverse outcomes in parturients under regional analgesia. Methods This study is a single-center retrospective cohort of 986 term pregnant women, and it was based on data from medical records (hospitalization period: Novembe...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2019-0366
更新日期:2020-06-25 00:00:00
abstract::During the last decade transvaginal color Doppler has played an important role in increasing understanding of early human development. Although our knowledge of early pregnancy development has recently improved, little is known about the most critical period of human development: between conception and implantation. R...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:10.1515/JPM.2002.011
更新日期:2002-01-01 00:00:00
abstract:AIM:The aim of this study was to assess the risk of subsequent delivery complications after extremely preterm deliveries by initial (index) pregnancy mode of delivery (MOD): cesarean (CD) versus vaginal (VD). METHODS:This is a retrospective, longitudinal cohort study using Washington State birth certificate data and I...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2013-0023
更新日期:2013-11-01 00:00:00
abstract::Single dose pharmacokinetics of 75 mg aspirin was investigated in two groups of ten women with clinically normal pregnancies. Eleven non-pregnant subjects in the same age were controls. In group A, gestational age was 27-30 completed weeks, and in group B, 36-39 weeks. Venous blood samples were taken before and up to ...
journal_title:Journal of perinatal medicine
pub_type: 临床试验,杂志文章
doi:10.1515/jpme.1994.22.3.205
更新日期:1994-01-01 00:00:00
abstract::Intussusception is an extremely rare disorder in preterm infants and it is often misdiagnosed as necrotizing enterocolitis. We report a case of intussusception in a 30-day-old preterm infant of 26 weeks of gestational age and a birthweight of 610 g who was diagnosed via abdominal ultra sonography. A systematic review ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:10.1515/JPM.2004.036
更新日期:2004-01-01 00:00:00
abstract:AIMS:To measure plasma concentrations of endothelin (ET)-1, NO metabolites (nitrate/nitrite; NOx) and 6-keto PGF1 alpha (PGF1 alpha) in maternal and fetal sheep blood, and to evaluate the effects of big ET-1 on hemodynamic response, blood gases and NO and 6-keto PGF1 alpha production in near term fetal sheep. METHODS:...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2004.149
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVE:To assess whether maternal multiple sclerosis (MS) is associated with adverse pregnancy outcomes by determining the clinical course of disease during pregnancy and postpartum throughout a 10-year-period in a single tertiary center. METHODS:We conducted a case-control study that included pregnancies with a de...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2016-0060
更新日期:2017-05-24 00:00:00
abstract::The concentration of bupivacaine in organs of non-viable human fetuses after obstetrical epidural analgesia in customary doses was investigated. The concentrations were determined with a gas chromatograph. The material consisted of a fetus who died following termination in the 24th week of pregnancy three minutes afte...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1986.14.4.219
更新日期:1986-01-01 00:00:00
abstract::The relationship between fetal movements and fetal heart rate accelerations was analyzed in 34 healthy near term fetuses. Periods of coincidence 2F (C2F) with a mean duration of 34 +/- 6 minutes per fetus were selected, with a total of 463 accelerations. Nineteen percent of single body movements and 71% of compilation...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1991.19.1-2.73
更新日期:1991-01-01 00:00:00
abstract:AIMS:Magnetic resonance imaging (MRI) is accepted as the gold standard for the diagnosis of arterial cerebral infarction (ACI), but few studies have reported the incidence of neonatal ACI based on MRI findings. We provide new population-based epidemiologic and diagnostic data on all infants diagnosed between 1997 and 2...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2005.032
更新日期:2005-01-01 00:00:00
abstract::A computer program was developed for the IBM PC computer to be used for maternal serum alpha fetoprotein screening (MSAFP). This program, written in BASIC, 1) maintains a data base for patients tested, 2) allows input and storage of MSAFP results, 3) calculates the gestational age dependent result in multiple of the m...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1989.17.3.221
更新日期:1989-01-01 00:00:00
abstract:AIMS:To evaluate the impact of umbilical and uterine artery Doppler in the second and third trimester on antenatal course, labor and delivery in a low-risk primigravid population. METHODS:Prospective recruitment of 1011 low-risk primigravidas with uterine and umbilical artery Doppler assessment at 22-24 weeks and 36 w...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm.2010.130
更新日期:2011-03-01 00:00:00
abstract::Subpartal and neonatal blood gas analyses have attracted increasing interest during the past 20 years. Different studies have been carried out to investigate the causes and immediate consequences of perinatal acidosis. It was the aim of this study to examine the long term outcome of acidotic-born babies. During 16 con...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1983.11.6.278
更新日期:1983-01-01 00:00:00
abstract::Doppler ultrasound velocimetry of uteroplacental, umbilical and fetal vessels provides the clinician with important information on the hemodynamics of respective vascular area. Gestational age-related reference values have been established for maternal uterine and arcuate artery, umbilical artery, fetal descending aor...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:
更新日期:1994-01-01 00:00:00
abstract::The purpose of this study was to determine the effects of maternal phencyclidine use on the fetus. Ninety-four neonates with maternal phencyclidine exposure were compared with 94 controls. Maternal phencyclidine use was assessed by questionnaire and repeated urine testing. Mothers of study and control patients were ma...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1987.15.2.185
更新日期:1987-01-01 00:00:00
abstract::Background Thyroid cancer is one of the most common cancers in women of reproductive age. Our purpose was to evaluate the association between thyroid cancer and maternal and neonatal outcomes of pregnancy. Methods We conducted a retrospective cohort study using the Healthcare Cost and Utilization Project, Nationwide I...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2019-0039
更新日期:2019-09-25 00:00:00
abstract::Objective To compare myocardial strain and mechanical dyssynchrony in fetuses with congenital heart disease (CHD) to normal controls using speckle tracking echocardiography (STE). Methods In this comparative cross-sectional study 23 fetuses with CHD and 105 normal controls between 19 and 41 weeks of gestation were ass...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2019-0073
更新日期:2019-08-27 00:00:00
abstract:OBJECT:To assess whether transvaginal ultrasound is helpful in predicting the post-term onset of labor (> or = 1 weeks). SETTING:Antenatal clinic of a University hospital and referral center. SUBJECT AND MEHODS: One hundred and twenty singleton uncomplicated pregnancies in primiparous women were enrolled at 37 weeks o...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2001.045
更新日期:2001-01-01 00:00:00
abstract:AIM:To determine the association, if any, between placental architecture findings assessed ultrasonographically at 22 and 36 weeks and placental histology. METHODS:There was prospective recruitment of 1011 low-risk primigravids from the antenatal clinic at the Rotunda Hospital, Dublin, Ireland. Ultrasound of the place...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2013-0015
更新日期:2013-09-01 00:00:00
abstract::We reviewed the literature on the use of inhaled nitric oxide and the influence of supplemental oxygen on bronchopulmonary dysplasia (BPD), and the role of endogenous nitric oxide-synthase, vascular endothelial growth factor, the interplay of nitric oxide and superoxide, protein nitration and the nuclear factor kappa ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:10.1515/JPM.2008.065
更新日期:2008-01-01 00:00:00
abstract::The neonatal outcome of 78 consecutive singleton pregnancies complicated by intrauterine growth retardation (IUGR) and gestational hypertension were compared with the outcome of 78 adequately matched pregnancies complicated by idiopathic IUGR. The rate of low (< 5) 1-minute Apgar scores was higher in infants born to h...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1993.21.3.195
更新日期:1993-01-01 00:00:00
abstract::Water births have gradually become more popular in industrialized countries during the last decade. People advocating this form of delivery argue that the buoyancy in water helps the mother to relax and that the warmth helps reduce pain, meaning that the whole labor process and experience is positively influenced and ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:The transcatheter pelvic arterial embolization (TAE) is effective for postpartum hemorrhage (PPH). There has been a little information about the factors for ineffectiveness of TAE. The aim of this study was to determine factors associated with TAE failure for PPH. STUDY DESIGN:Fifty-five women who underwent ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2013-0242
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVE:To evaluate differences in placental lesions in twin pregnancies with and without mid-trimester sonographic cervical shortening.
METHODS:Two groups of women were identified: those with twin gestations and a cervical length journal_title:Journal of perinatal medicine pub_type: 杂志文章 doi:10.1515/jpm.2010.077 更新日期:2010-09-01 00:00:00
abstract::A prospective trial to investigate feasibility of vaginal delivery after more than one cesarean section, and the safety of vaginal delivery for mother and neonate. Twenty-six pregnant women with a history of two or more cesarean sections were admitted to the delivery room and accepted trial of labor under internal fet...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1994.22.1.13
更新日期:1994-01-01 00:00:00
abstract::Thirty-one pregnant women divided into three groups (AGA prepartum, SGA prepartum without distress, AGA in labor) were examined using Doppler ultrasonography before, during and after oxygen administration to mothers via a face mask. The aim of the study was to find out if there was any effect on the blood flow values ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1991.19.3.185
更新日期:1991-01-01 00:00:00