Abstract：
:While observation of fetal breathing movements has been used in fetal assessment, quantitative parameters (percent time spent in breathing [incidence], breath rate, or breath rate variability) have not been adequately evaluated as predictive tools. We examined 283 patients with high-risk pregnancies between 32 and 42 weeks' gestation and correlated their fetal breathing movement parameters with the rates of perinatal mortality, intrapartum fetal distress, neonatal acidosis, low 5-minute Apgar score, and intrauterine growth retardation. Fetal breathing data from standardized 60-minute biophysical tests were analyzed and compared with our institutional standards. Parameter values greater than 2 SD from the means of a previously studied normal population were considered abnormal. Whereas no individual parameter was a highly accurate predictor of adverse outcome, a fetal breathing movement incidence of less than 5% provided the best cutoff for diagnostic accuracy. Seventy percent of fetuses with 30 minutes of apnea had normal outcomes, whereas abnormally high breath rates (greater than 60 breaths/min) and low breath rates (less than 33 breaths/min) occurred with equal frequency among normal and pathologic fetuses. Breath interval variability was of no benefit in detecting fetuses with poor outcomes. Observation of fetal breathing movement incidence appeared to be most effective in pregnancies complicated by chronic hypertension and least effective in those with preeclampsia.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Devoe LD,Ruedrich DA,Searle NSdoi
10.1016/0002-9378(89)90112-9subject
Has Abstractpub_date
1989-01-01 00:00:00pages
166-71issue
1eissn
0002-9378issn
1097-6868pii
0002-9378(89)90112-9journal_volume
160pub_type
杂志文章abstract：OBJECTIVE:The study's objective was to determine whether there is a difference in the plasma concentration of adrenomedullin, a hypotensive peptide, between arterial and venous umbilical cord blood of uncomplicated gestations with vaginal delivery. STUDY DESIGN:Arterial and venous umbilical cord blood was obtained imm...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70217-0
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND:Patients with ovarian cancer tend to receive the highest quality of care at high-volume cancer centers with gynecological oncologists. However, the care that they receive prior to gynecological oncology consult has not been examined. We investigated the quantity and quality of care given to patients with ova...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2018.01.015
更新日期：2018-04-01 00:00:00
abstract：OBJECTIVE:Mitochondfial respiratory activities were measured in neonatal rat brain to compare the influence of transient intrauterine ischemia in the preterm fetus with that in the term fetus and to evaluate the effect of alpha-phenyl-N -tert-butyl-nitrone treatment. STUDY DESIGN:Intrauterine ischemia was induced by a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.111722
更新日期：2001-03-01 00:00:00
abstract：:To test the hypothesis that amniotic fluid directly affects cardiac function, isolated rat hearts were perfused with varying concentrations of centrifuged and filtered human amniotic fluid. The most consistent change seen was a dose-dependent decrease in coronary flow rate. With 10% concentrations, a wide spectrum of ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90812-5
更新日期：1988-01-01 00:00:00
abstract：:SAA and SIA were assayed in the sera of 172 infertile couples and in the CM of the women and 18 control subjects. Complete infertility evaluation was performed in all subjects except the controls. Results of these studies were correlated with PCT's. Sperm antibodies were detected in the CM of 25.6% of infertile women ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1980-04-01 00:00:00
abstract：BACKGROUND:There are limited data on how maternal age is related to twin pregnancy outcomes. OBJECTIVE:The purpose of this study was to assess the relationship between maternal age and risk for preterm birth, fetal death, and neonatal death in the setting of twin pregnancy. STUDY DESIGN:This population-based study of...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.03.002
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the risk of cumulative cervical intraepithelial neoplasia (CIN) grade 2 or 3 according to initial colposcopy and directed biopsy results among women with low-grade squamous intraepithelial lesions (LSIL) or human papillomavirus (HPV) DNA positive atypical squamous ce...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.461
更新日期：2003-06-01 00:00:00
abstract：OBJECTIVES:Our objectives were to document the causes of fluid absorption during continuous flow hysteroscopy and to determine under which operative conditions fluid overload may occur. STUDY DESIGN:Fifteen patients underwent operative hysteroscopy with 2% ethanol solution for uterine distention. Absorption of fluid w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91417-3
更新日期：1992-08-01 00:00:00
abstract：:In an evaluation of the limulus lysate assay (LLA) as a method for detecting gonococcal endotoxin in cervical exudates diluted 1:800, positive LLA results were obtained from 17 of 18 patients (94%) with culture-proved gonococcal cervicitis, and negative results were obtained from 22 of 22 patients (100%) with culture-...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90702-4
更新日期：1980-07-01 00:00:00
abstract：:Twelve cases of retroperitoneal mucinous cystadenoma or mucinous cystadenocarcinoma in women have been reported in the literature. We report an additional case. The histogenesis of mucinous cystadenomas and mucinous cystadenocarcinomas in the retroperitoneum is not clear, but that these lesions may arise from teratoma...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90201-9
更新日期：1989-05-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the plausibility of serum sex hormone-binding globulin (SHBG) concentration as a risk marker for venous thromboembolism (VTE) during use of combined oral contraceptives (COC). Study design This was a prospective, randomized cross-over study. Thirty-five women were ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(03)00950-5
更新日期：2004-02-01 00:00:00
abstract：OBJECTIVE:With no single regimen recognized as the standard for the treatment of first trimester cervical pregnancy, this report offers a successful treatment option with suction curettage and balloon tamponade. STUDY DESIGN:This is a retrospective review, with institutional review board approval, of 13 consecutive fi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.03.057
更新日期：2014-06-01 00:00:00
abstract：:To study the effects of ritodrine on fetal and placental blood flow and maternal prostacyclin and thromboxane A2, 14 women with premature uterine contractions between the thirty-first and thirty-sixth weeks of pregnancy were treated with intravenous infusions of ritodrine, with incremental doses up to 200 micrograms p...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(85)90374-6
更新日期：1985-04-15 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine, among six second-trimester maternal serum analytes, the best three-analyte combination for fetal Down syndrome detection. STUDY DESIGN:With use of commercially available assay kits, medians for free beta-human chorionic gonadotropin, CA 125, and dimeric inhibin A w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70001-2
更新日期：1997-11-01 00:00:00
abstract：:Bicycle ergometry (non-weight-bearing exercise) and treadmill (weight-bearing exercise) were compared to assess physiologic responses to similar work loads. A total of 22 subjects at 29.3 +/- 1.6 (+/- SEM) weeks' gestation who performed non-weight-bearing exercise were compared with 15 similarly fit subjects at 26.1 +...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90905-8
更新日期：1989-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine cardiovascular risk factors in women with a history of hypertensive pregnancy disorders at term (HTP) 2.5 years after pregnancy. STUDY DESIGN:In a multicenter cohort study in The Netherlands from June 2008 through November 2010, cardiovascular risk factors were comp...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.ajog.2013.02.016
更新日期：2013-06-01 00:00:00
abstract：OBJECTIVE:The physiopathology of preeclampsia is still unclear, but an imbalance between reactive oxygen species (ROS) and antioxidants, also called oxidative stress, appears to be an important contributing factor. The ROS promote lipid oxidation and are known to induce stress proteins, such as hemeoxygenase 1 (HO-1) a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.12.031
更新日期：2009-05-01 00:00:00
abstract：:Placenta percreta in a patient with previous pelvic irradiation has never been described. Reported is a case of placenta percreta with hemoperitoneum associated with a second-trimester incomplete abortion in a patient with previous pelvic irradiation and ovarian failure. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90018-3
更新日期：1990-05-01 00:00:00
abstract：OBJECTIVE:A depressed skull fracture is an inward buckling of the calvarial bones and is referred to as a "ping-pong" fracture. This study aimed to look at differences between "spontaneous" and "instrument-associated" depressed skull fractures. STUDY DESIGN:This retrospective, case-control analysis included every neon...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2004.06.035
更新日期：2005-01-01 00:00:00
abstract：:A 44 year old G4P3 presents with massive hernia recurrence and bowel obstruction. Her symptoms resolve with conservative management, and she is delivered by cesarean section at term with herniorrhaphy performed 10 weeks postpartum. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.03.006
更新日期：2014-07-01 00:00:00
abstract：OBJECTIVE:Blastocysts are advanced-stage embryos with high implantation potential; theoretically, limited numbers of blastocysts can be used for embryo transfer to achieve good pregnancy rates with low multiple pregnancy rates. Clinical outcomes of a newly implemented blastocyst transfer program were evaluated. STUDY ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.114851
更新日期：2001-06-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to characterize the spinal distribution of afferent and efferent pathways that innervate the levator ani (LA) muscle in the female squirrel monkey. STUDY DESIGN:Cholera toxin B (CTB) was injected unilaterally into the LA muscle of 5 monkeys to identify primary sensory neurons in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.10.607
更新日期：2005-05-01 00:00:00
abstract：:Nine female patients with the rare congenital arteriovenous malformation of the pelvis were treated at New York University Medical Center in the past 8 years. The patients varied significantly in the anatomic location of the arteriovenous malformation, clinical presentation, and natural course of disease. A gynecologi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90435-8
更新日期：1988-11-01 00:00:00
abstract：:We report a case of a 25-year-old pregnant woman with gestational diabetes and increased activity (25-fold) of placental isozyme of alkaline phosphatase. Abdominal ultrasonographic scan revealed no hepatobiliary disease. After delivery, the alkaline phosphatase level decreased but did not return to the reference range...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(03)00904-9
更新日期：2004-02-01 00:00:00
abstract：:A 13-year-old patient with an ovarian abscess caused by Salmonella paratyphi C1-7 had positive stool cultures for the same organism. She recovered after surgical removal of the abscess and intravenous antibiotics. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)90118-3
更新日期：1995-01-01 00:00:00
abstract：:Because serum CA-125 concentrations are increased in women with endometriosis, our objective was to determine whether CA-125 levels could be used to differentiate endometriotic from nonendometriotic benign cysts. During a 2-year period, all women who had an endometrioma (n = 33) or a nonendometriotic cyst (n = 27) tha...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(87)80237-5
更新日期：1987-12-01 00:00:00
abstract：:This document builds upon recommendations from peer organizations and outlines a process for identifying maternal cases that should be reviewed. Severe maternal morbidity is associated with a high rate of preventability, similar to that of maternal mortality. It also can be considered a near miss for maternal mortalit...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.07.050
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the frequency and clinical significance of intraamniotic inflammation in patients with acute cervical insufficiency. STUDY DESIGN:Amniocentesis was performed in 52 patients with acute cervical insufficiency (cervical dilation, > or =1.5 cm) and intact membranes and ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.11.047
更新日期：2008-06-01 00:00:00
abstract：:Congenital cytomegalovirus (CMV) is the most common viral infection, affecting nearly 40,000 infants each year in the United States. Of seronegative women, 1-4% will acquire a primary infection during pregnancy, and the majority of these women will be asymptomatic. Prior maternal exposure to CMV does not preclude neon...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2016.02.042
更新日期：2016-06-01 00:00:00
abstract：:The effect of cigarette smoking on the pulse rate and carboxyhemoglobin concentration of the pregnant smoker was studied. The aim of this investigation was threefold: (1) to standardize cigarette consumption for studying short-term smoking effects in pregnant smokers, (2) to test for these effects by use of two noninv...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90570-2
更新日期：1984-03-15 00:00:00
