Abstract:
OBJECTIVE:Our purpose was to determine whether postterm patients with oligohydramnios differ in their fetal and umbilical blood flow distribution from those with a normal volume of amniotic fluid. STUDY DESIGN:Pulsed-wave Doppler imaging was used prospectively to determine the resistance index in the fetal middle cerebral, renal, and umbilical arteries in 57 postterm (i.e., > 41 weeks' gestation) pregnancies. Semiquantitative assessment of amniotic fluid volume was obtained by use of the ultrasonographically determined amniotic fluid index. RESULTS:Oligohydramnios (amniotic fluid index < 5 cm) was detected in 15 patients; 42 patients with a normal amniotic fluid index served as a control group. The various resistance index values and the ratio s among them were not significantly different when patients with oligohydramnios were compared with controls (0.51 +/- 0.1 vs 0.52 +/- 0.06, 0.63 +/- 0.1 vs 0.64 +/- 0.08, and 0.71 +/- 0.08 vs 0.73 +/- 0.05 for the umbilical, middle cerebral, and renal arteries, respectively). However, the mean birth weight (in grams) was significantly lower (3297 +/- 438 vs 3742 +/- 448, p < 0.003), in the oligohydramnios group. CONCLUSION:Oligohydramnios was not associated with a major redistribution of blood flow in postterm patients, suggesting that the cause of oligohydramnios in these patients is related to birth weight rather than to renal perfusion.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Bar-Hava I,Divon MY,Sardo M,Barnhard Ydoi
10.1016/0002-9378(95)90276-7subject
Has Abstractpub_date
1995-08-01 00:00:00pages
519-22issue
2eissn
0002-9378issn
1097-6868pii
0002-9378(95)90276-7journal_volume
173pub_type
杂志文章abstract::A descriptive study of 125 infants with abdominal wall defects was undertaken to determine the effect of mode of delivery on outcome. Fifty-six infants had gastroschisis and 69 had omphalocele. Overall, there were no differences between the omphalocele and the gastroschisis groups in either cesarean section rate (22% ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(90)91079-r
更新日期:1990-09-01 00:00:00
abstract:OBJECTIVE:Absent end-diastolic blood flow in the umbilical artery identifies growth-restricted fetuses at high risk of perinatal mortality and severe morbidity. We explored antenatal variables predictive of perinatal mortality or severe neonatal morbidity in such fetuses. STUDY DESIGN:We accessed a cohort of 39 single...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2005.07.032
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:We undertook this investigation to explore the effects of ethanol exposure on nitric oxide synthase levels and nitric oxide release. Our hypothesis was that ethanol exposure modifies nitric oxide activity within the placenta as a result of oxidative stress. STUDY DESIGN:Four 10-g samples of term normal human...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2000.104201
更新日期:2000-03-01 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::In an attempt to establish the normal ratio of pulmonary artery to aorta diameters at varying gestational ages, the pulmonary artery and aorta diameters of 316 normally grown fetuses between 14 and 39 weeks' gestational age were measured. The ratios for each fetus were derived, and regression analysis was used to eval...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(91)90466-5
更新日期:1991-10-01 00:00:00
abstract::Ultrasound has proved to be a valuable diagnostic tool in the practice of obstetrics. Its rapidly increasing use by the office-based obstetrician, however, has opened a potential new area of legal vulnerability. The malpractice liability that may arise from its use is reviewed and practical ways to avoid it are consid...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(84)90452-6
更新日期:1984-12-01 00:00:00
abstract::A review of 80 cases of planned or anticipated cesarean hysterectomies done at major centers in the greater Los Angeles area is presented. There were no deaths and five cases of morbidity. Nineteen percent, or one of five cases, required blood transfusions. According to the recommendation of the American Association o...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(84)90287-4
更新日期:1984-05-01 00:00:00
abstract:OBJECTIVE:To compare live birth rates following ultrasound-guided embryo transfer (ET) by reproductive endocrinology and infertility fellows versus attending physicians. STUDY DESIGN:Women who underwent their first day-3, fresh, nondonor ET between Oct. 1, 2005, and April 1, 2011, at our academic center were included ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.05.042
更新日期:2014-11-01 00:00:00
abstract::FloSeal hemostatic matrix has been reported to be effective for the control of intraoperative bleeding in various surgeries. We report 3 patients who experienced a possible allergic response to FloSeal with the formation of excessive granulation tissue and fibrosis that were associated with early postoperative pelvic ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2008.10.052
更新日期:2009-04-01 00:00:00
abstract::The intervillous blood flow and other maternal hemodynamic parameters were assessed in 40 mothers with pregnancy-induced hypertension in late pregnancy before and after hypotensive treatment. Furosemide caused a significant decrease in the intervillous blood flow, whereas the effects of dihydralazine and metoprolol we...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(86)90093-1
更新日期:1986-07-01 00:00:00
abstract::Radical trachelectomy is an effective fertility-sparing treatment for women with early-stage cervical cancer. We describe the first reported ovarian recurrence after radical trachelectomy for stage IB1 adenocarcinoma cervical cancer. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2005.03.071
更新日期:2005-10-01 00:00:00
abstract::This study examined the effects of human chorionic gonadotropin, adrenocorticotropin, human luteinizing hormone, and mouse epidermal growth factor on growth (thymidine incorporation) and steroidogenesis (dehydroepiandrosterone sulfate production) of human fetal zone adrenal cells in monolayer culture. Two preparations...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(87)90077-9
更新日期:1987-03-01 00:00:00
abstract:BACKGROUND:Only 64% of obstetrics and gynecology program directors report routine, scheduled training in abortion, despite the Accreditation Council for Graduate Medical Education's requirements for routine training. Most report that exposure to training is limited to specific clinical circumstances. OBJECTIVE:We soug...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2019.04.026
更新日期:2019-08-01 00:00:00
abstract::Statistical procedures for hypothesis testing and interval estimation of the difference in a pair of Pearl rates are presented. The p value of the test statistic is evaluated exactly from the binomial distribution or approximately from the standard normal distribution. Interval estimation is provided by the test-based...
journal_title:American journal of obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:10.1016/0002-9378(85)90158-9
更新日期:1985-03-01 00:00:00
abstract::During a 20 month period, 110 women with gonococcal pelvic inflammatory disease an 165 women with uncomplicated gonorrhea were provided intensive case-finding services (interviewing of patients and tracing of contacts). Approximately three contacts per case were investigated, and 24.3% of the 859 male contacts were in...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(80)91116-3
更新日期:1980-12-01 00:00:00
abstract::Fifty-four pregnancies that were subsequently complicated by preeclampsia had platelet parameters and uric acid levels measured during pregnancy. The expected fall in platelet count and rise in platelet volume parameters and uric acid levels beyond those that occur in normal pregnancy were seen only in the week before...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(85)90555-1
更新日期:1985-08-15 00:00:00
abstract:OBJECTIVE:This study examined the effects of the chemopreventive agents 4-(N-hydroxyphenyl)retinamide (4-HPR) and alpha-difluoromethylornithine (DFMO) on leiomyoma growth. STUDY DESIGN:Primary cultures of human uterine leiomyomas and matched normal myometrium were established from hysterectomy specimens. After treatme...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2003.09.048
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVE:Our purpose was to evaluate our experience with a statewide, multiple-marker Down syndrome screening program. STUDY DESIGN:The results of 18,712 screening tests performed from July 1, 1991, to Oct. 31, 1992, were reviewed. Amniocentesis and aneuploidy detection rates were compared with the experience of a pr...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(93)90007-6
更新日期:1993-10-01 00:00:00
abstract::Two patients who survived cardiorespiratory arrest occurring in association with amniotic fluid embolism syndrome were seen during the subsequent pregnancy. Both had uneventful pregnancies and delivered at term without complications. These are the only case reports of pregnancy after amniotic fluid embolism, and they ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(11)91442-2
更新日期:1992-08-01 00:00:00
abstract::We evaluated the reliability, culture findings, and fetal outcome after transcervical chorionic villus sampling or amniocentesis in a group of 860 patients. All procedures were performed for the indication of advanced maternal age with consistent procedure and laboratory techniques. Successful procedures were complete...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(90)91098-w
更新日期:1990-09-01 00:00:00
abstract:BACKGROUND:Several articles have implied that progestogen supplementation during pregnancy to reduce the risk of preterm birth may increase the risk for developing gestational diabetes mellitus. OBJECTIVE:The purpose of the present meta-analysis was to accumulate existing evidence concerning this correlation. DATA SO...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,meta分析
doi:10.1016/j.ajog.2019.05.033
更新日期:2019-11-01 00:00:00
abstract::A new colposcopic sign (sharpness of peripheral margins) was graded into three objective categories representing subclinical papillomaviral infection, lower grade dysplasia, and grade 3 cervical intraepithelial neoplasia. Colposcopic features were prospectively recorded in 72 women and then correlated with histologic ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(85)80244-1
更新日期:1985-11-15 00:00:00
abstract::Five hundred eighty-eight women who were delivered of twins at 13 hospitals affiliated with the Northwestern University Medical School or its outreach institutions between 1971 and 1975 were studied. Eighty-six of the infants did not survive the pregnancy, delivery, or the first week post partum. Maternal demographic ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1980-12-01 00:00:00
abstract::Capillary hydrostatic pressure has been calculated in normal pregnancy and preeclampsia. In humans, capillary hydrostatic pressure cannot be measured directly but may be calculated when the colloid osmotic pressure in plasma and interstitial fluid and interstitial fluid hydrostatic pressure are known (Starling equatio...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(87)80355-1
更新日期:1987-07-01 00:00:00
abstract:OBJECTIVE:We studied the role of multidrug resistance proteins in regulating transplacental transmission of corticosteroids and protease inhibitors. STUDY DESIGN:We performed quantitative polymerase chain reaction and FACS analyses to study MDR1 (encodes P-glycoprotein) and MRP-1 expression in extravillous (HTR-8/SVne...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2007.02.019
更新日期:2007-05-01 00:00:00
abstract::Umbilical arterial velocity waveforms were recorded in 69 pairs of twins by means of continuous-wave Doppler analysis and an Angioscan spectrum analyzer. A systolic/diastolic ratio was measured for each twin. The sum of the systolic/diastolic ratio was calculated and the difference between each twin was expressed as t...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(87)80035-2
更新日期:1987-09-01 00:00:00
abstract::Despite advances in diagnostic techniques, endometriosis remains an enigmatic condition. Clinical symptoms and signs often do not correlate with the anatomic stage of the disease, and morphologic characteristics very widely. A definitive diagnosis can be established only by direct visualization, usually by laparoscopy...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(90)90431-6
更新日期:1990-02-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to test the hypothesis that cocaine alters placental prostaglandin production in vitro. STUDY DESIGN:Placentas were obtained from healthy women (n = 6) after normal vaginal delivery at term. Placental explants (300 mg) were incubated in duplicate at 37 degrees C in the presenc...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(94)90015-9
更新日期:1994-10-01 00:00:00
abstract:OBJECTIVE:To analyze the effects of preconception maternal height and weight on the risk of preterm singleton and twin births resulting from in vitro fertilization (IVF). STUDY DESIGN:We performed a retrospective cohort analysis of the incidence of very early preterm birth (VEPTB), early preterm birth (EPTB), and pret...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2013.05.052
更新日期:2013-10-01 00:00:00
abstract::The Moschcowitz procedure has been advocated for the correction of large enteroceles. Documented complications of this technique are rare. Following is a review of this procedure with the presentation of a unique delayed complication. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(85)80086-7
更新日期:1985-08-01 00:00:00