Abstract：
OBJECTIVE:The aim of this study was to compare 3-dimensional (3D) lung volume measurements with 2-dimensional (2D) biometric parameters in predicting pulmonary hypoplasia in complicated pregnancies. STUDY DESIGN:In this prospective study, 1-4 scans of the fetal lungs were obtained in 33 pregnancies complicated by various disorders or complications with regard to pulmonary hypoplasia. The 3D lung volumes vs gestational age or estimated fetal weight, the thoracic circumference vs gestational age or femur length, the thoracic/abdominal circumference ratio, and the thoracic/heart area ratio were measured. RESULTS:Of the 33 infants, 16 (48.5%) were diagnosed with pulmonary hypoplasia on postmortem examination or the clinical and radiological presentation. Three dimensional lung volume measurements had a better diagnostic accuracy for predicting pulmonary hypoplasia (sensitivity, 94%; specificity, 82%; positive predictive value [PPV], 83%; negative predictive value [NPV], 93%), compared with the best 2D biometric measurement thoracic/heart area ratio (sensitivity, 94%; specificity, 47%; PPV, 63%; NPV, 89%). CONCLUSION:3D lung volume measurements seem to be useful in predicting pulmonary hypoplasia prenatally.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Gerards FA,Twisk JW,Fetter WP,Wijnaendts LC,van Vugt JMdoi
10.1016/j.ajog.2007.06.005subject
Has Abstractpub_date
2008-01-01 00:00:00pages
140.e1-6issue
1eissn
0002-9378issn
1097-6868pii
S0002-9378(07)00734-Xjournal_volume
198pub_type
杂志文章abstract：OBJECTIVE:The purpose of this study was to determine the reported diagnostic accuracy, the validity, and the current limitations of fetal Rh genotyping from peripheral maternal blood based on the existing English-written publications. STUDY DESIGN:A search of the English literature describing fetal RhD determination f...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,meta分析
doi：10.1016/j.ajog.2006.07.033
更新日期：2006-10-01 00:00:00
abstract：OBJECTIVE:We examined intraplacental color Doppler flow patterns and spectral Doppler flow velocity waveforms of villous arteries in pregnancies with intrauterine growth retardation. STUDY DESIGN:A total of 192 uncomplicated pregnancies and 29 pregnancies with intrauterine growth retardation between 26 and 41 weeks' g...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(94)90143-0
更新日期：1994-11-01 00:00:00
abstract：OBJECTIVE:The goal of this study was to determine whether estrogen increases the expression of the inducible nitric oxide synthase gene. STUDY DESIGN:An inducible nitric oxide synthase fusion gene was created with its promoter and the reporter gene, luciferase. COS cells were transfected transiently with the fusion ge...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.350
更新日期：2003-05-01 00:00:00
abstract：OBJECTIVE:The study was undertaken to assess the validity of vaginal fetal fibronectin assay as a screening test for spontaneous preterm delivery in asymptomatic patients who have undergone multifetal pregnancy reduction (MFPR). STUDY DESIGN:A historic cohort of 63 patients who underwent MFPR between 10 and 14 weeks o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2003.07.027
更新日期：2004-01-01 00:00:00
abstract：OBJECTIVE:Studies in animals and human muscle have demonstrated differential splicing of the insulin-like growth factor-1 gene in response to mechanical strain and damage. We conducted a study on the expression of insulin-like growth factor-1 splice variants in the levator ani muscle after the first vaginal delivery. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.12.088
更新日期：2005-07-01 00:00:00
abstract：OBJECTIVE:The purpose of our study was to examine the neuronal outcome after a standardized period of umbilical cord occlusion. STUDY DESIGN:The umbilical cord was clamped for 10 minutes in nine experimental and four control chronically instrumented fetal sheep. Three days later the animals were killed for histologic ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91728-1
更新日期：1992-11-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate antimicrobial susceptibility of vaginal anaerobic bacteria before and after treatment of bacterial vaginosis. STUDY DESIGN:A randomized clinical trial of 119 nonpregnant women with bacterial vaginosis receiving either intravaginal metronidazole for 5 days or clindamycin ...
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/j.ajog.2004.05.033
更新日期：2004-10-01 00:00:00
abstract：:Alternatives to regimens with mifepristone and a prostaglandin analog for medical abortion emerged because of the need for accessible, effective, and safe options in areas of the world where mifepristone was unavailable. Studies of oral or intramuscular methotrexate combined with misoprostol have demonstrated complete...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1067/mob.2000.107949
更新日期：2000-08-01 00:00:00
abstract：OBJECTIVE:We sought to define the prevalence, trends, and outcomes of primary and secondary chronic hypertension in a population-based sample of deliveries. STUDY DESIGN:An estimated 56,494,634 deliveries were identified from the 1995 through 2008 Nationwide Inpatient Sample. The association of primary and secondary c...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.10.878
更新日期：2012-02-01 00:00:00
abstract：:Thirteen women, six of whom were using oral contraceptive agents, between the ages of 23 and 34 years, free from illness, and without a previous clinical history of menstrual abnormality, were studied with chronobiological methods for circadian (about 24 hour) patterns of metal and creatinine excretinine excretion. Ci...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)33342-7
更新日期：1976-04-01 00:00:00
abstract：:Systemic distribution of radioactive colloidal chromic phosphate P 32 after intraperitoneal instillation was studied in 10 patients with ovarian or endometrial malignancies. Seven patients without ascites received chromic phosphate P 32 for positive peritoneal washings, rupture of the capsule of the cyst during operat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(84)80014-9
更新日期：1984-09-15 00:00:00
abstract：:All but three of the 270 women surviving eclampsia at the Margaret Hague Maternity Hospital in the period 1931 through 1951 were traced to 1973-74. Seventy-six have died and 13 were not re-examined. In white women having eclampsia in the first pregnancy carried to viability the remote mortality rate is not increased o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90168-x
更新日期：1976-03-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate the response to sacral neuromodulation in women with refractory, nonobstructive urinary urge incontinence after stress incontinence surgery. STUDY DESIGN:We reviewed the medical records of women in whom sacral neuromodulation was performed for worsening or de novo urinar...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.07.038
更新日期：2005-12-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to determine incontinence pessaries' mechanism of action by measuring changes on urodynamic studies (UDS) and dynamic magnetic resonance imaging (MRI) with and without pessaries in place. STUDY DESIGN:Women with stress incontinence had UDS and MRI performed with and without inc...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.01.047
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:Our purpose was to quantitatively assess the effects of oxytocin on membrane properties in the pregnant human myometrium. STUDY DESIGN:Specimens were obtained from the lower uterine segment during cesarean section at term. Electrical activity was recorded from individual cells by a conventional microelectrod...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70465-4
更新日期：1997-07-01 00:00:00
abstract：OBJECTIVE:This study was designed to develop formulas using the chest circumference instead of the abdominal circumference for estimating fetal weight. STUDY DESIGN:Ultrasonographic measurements of the chest circumference, biparietal diameter, abdominal circumference, humeral length, and femoral length were obtained i...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91427-6
更新日期：1992-08-01 00:00:00
abstract：OBJECTIVE:Closure of a low transverse cesarean incision with one layer of suture results in less operating time, better hemostasis, and less infectious morbidity than a two-layer closure. STUDY DESIGN:At our institution 906 women were randomized to closure of a low transverse cesarean incision with either one continuo...
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(12)80048-2
更新日期：1992-10-01 00:00:00
abstract：OBJECTIVES:To evaluate the relationship of hormone (estrogen receptor alpha, estrogen receptor beta, progesterone receptor) and growth factor receptor (insulin-like growth factor receptor, human epidermal growth factor receptor 2) expression with disease progression in uterine carcinosarcoma. STUDY DESIGN:Immunohistoc...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.12.012
更新日期：2009-04-01 00:00:00
abstract：:The previously reported elevation of serum iron in association with toxemia of pregnancy was evaluated to determine if this chemical test could be clinically useful. When patients with toxemia and pregnant women with chronic hypertension were compared, a serum iron value greater than 100 micrograms/dl or an increase g...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90804-9
更新日期：1983-07-01 00:00:00
abstract：:The chronic and relatively acute changes in blood volume that occur during pregnancy and post partum may be associated with alterations in the content of atrial natriuretic factor in the atria. We measured the concentration of atrial natriuretic factor in the right and left atria of virgin, pregnant, and postpartum Sp...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90937-x
更新日期：1989-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to analyze the obstetric and neonatal impact of an opioid detoxification program during pregnancy, as well as to examine variables associated with successful opioid detoxification. STUDY DESIGN:This is a retrospective cohort study of women electing inpatient detoxification and s...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.05.026
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVE:Our purpose was to immunolocalize urokinase-type plasminogen activator and the plasminogen activator inhibitors 1 and 2 in human implantation sites, with emphasis on the types of trophoblast expressing the plasminogen activator and the inhibitors. STUDY DESIGN:Urokinase and the plasminogen activator inhibito...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(94)70246-2
更新日期：1994-02-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the normal beta-human chorionic gonadotropin change within 24 hours after a medical abortion. Because a medical abortion creates a "miscarriage," these data can represent the serum beta-human chorionic gonadotropin changes that would occur with a complete spontaneous...
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(96)70463-5
更新日期：1996-02-01 00:00:00
abstract：:In this study, we examined whether the doubling time of human chorionic gonadotropin is different at different stages of early pregnancy and whether the use of multiple nomograms for doubling time of human chorionic gonadotropin rather than a single critical value can improve the diagnosis of ectopic pregnancy. Forty-...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(87)80349-6
更新日期：1987-07-01 00:00:00
abstract：:The pulsatility index of the fetal umbilical arteries was evaluated in 14 high-risk pregnant patients delivered by cesarean section between 30 and 35 weeks of gestation. Transabdominal cord sampling by ultrasonic guidance was performed on 10 of these patients. Umbilical arterial and venous blood was obtained in all pa...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90418-8
更新日期：1988-11-01 00:00:00
abstract：OBJECTIVE:The antepartum course and short-term neonatal outcome for patients with premature rupture of membranes between 26 and 33 weeks' gestation with positive cervical cultures for group B streptococcus or Neisseria gonorrhoeae were reviewed. STUDY DESIGN:A retrospective analysis of 182 patients managed expectantly...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(92)91369-l
更新日期：1992-03-01 00:00:00
abstract：:Pelvic exenteration can be used to cure women with a central pelvic recurrence or persistence of gynecologic malignancy after initial definitive therapy. Refinements in patient selection, operative techniques, and surgical instrumentation have significantly improved outcomes over the past 60 years, but the procedure i...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.04.004
更新日期：2010-06-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the accuracy of algorithms for the assignment of gestational age with the use of the last menstrual period and early ultrasound information. STUDY DESIGN:Gestational age estimates that are based on last menstrual period, ultrasound scanning, or their combination were...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.127601
更新日期：2002-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to compare fetal middle cerebral artery peak systolic velocity with amniotic fluid delta optical density at 450 nm in the prediction of fetal anemia. STUDY DESIGN:A prospective study that involved 28 singleton pregnancies that were at-risk for fetal anemia was carried out in a t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.63
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Uterine inflammatory processes trigger prolabor pathways and orchestrate on-time labor onset. Although essential for successful labor, inflammation needs to be regulated to avoid uncontrolled amplification and resolve postpartum. During labor, myometrial smooth muscle cells generate ATP mainly via anaerobic ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.09.072
更新日期：2017-01-01 00:00:00
