Abstract：
:The activity of smooth muscles in the cervix is one of the relevant factors for its dilatation during labor, but in humans it has not yet been sufficiently studied. Muscular activity may be observed by measuring electromyographic phenomena. In 60 parturient women of different parity and with various degrees of cervical ripeness at the onset of labor, the cervical electromyographic activity was measured through the entire course of labor in synchronization with uterine pressure measurements and also in 30 cases in synchronization with measurements of the uterine corpus electromyographic activity. The conditions necessary for successful measurements are described. The intensity of the cervical electromyographic activity was found to decrease with the level of cervical ripeness and with parity. When measured in the longitudinal direction, the cervical electromyographic activity resembled that of the uterine corpus, but when picked up from the circular lead, in a few cases of unripe cervices it differed from the electromyographic activity of the uterine corpus.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Pajntar M,Roskar E,Rudel Ddoi
10.1016/0002-9378(87)90080-9subject
Has Abstractpub_date
1987-03-01 00:00:00pages
691-7issue
3eissn
0002-9378issn
1097-6868pii
0002-9378(87)90080-9journal_volume
156pub_type
杂志文章abstract：OBJECTIVE:The purpose of this study was to describe the outcome of peripartum cardiomyopathy in patients cared for in a community hospital. STUDY DESIGN:The cases of peripartum cardiomyopathy treated at Central Baptist Hospital in Lexington, Kentucky, from January 1, 1992, to December 31, 1998, were reviewed. RESULTS...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.105402
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVE:Our purpose was to learn whether cytokines such as interleukin-1 beta and related (or antagonistic) cytokines, hormones, and growth factors could regulate secretion of the vasorelaxant parathyroid hormone-related protein in human umbilical vein endothelial cells in culture. STUDY DESIGN:Secondary cultures of...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)90265-1
更新日期：1995-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to define the rate of neoplasia in prophylactic surgical specimens with the use of a careful surgical and pathologic protocol in a prospective study of high-risk women who were undergoing risk-reducing salpingo-oophorectomy. Outcomes of interest were neoplasia that was identified...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2006.03.006
更新日期：2006-06-01 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：BACKGROUND:The Institute for Healthcare Improvement defines an adverse event as an unintended physical injury resulting from or contributed to by medical care that requires additional monitoring, treatment, or hospitalization or that results in death. The majority of research has focused on adverse events from the prov...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2018.10.033
更新日期：2019-02-01 00:00:00
abstract：OBJECTIVE:We sought to compare bony pelvis dimensions at the level of pelvic support in women with and without pelvic organ prolapse (POP). STUDY DESIGN:Pelvic floor dimensions of 42 white women with POP > 1 cm beyond the hymen were compared with 42 age- and parity-matched women with normal support. Bony landmarks rel...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.10.040
更新日期：2009-03-01 00:00:00
abstract：:Maternal, fetal, and neonatal results and complications were analyzed after 923 genetic amniocenteses. Maternal age of 35 years and beyond was associated with a 2.0% risk of fetal trisomy 21 and a 3.0% risk of all major chromosome abnormalities. Comparable rates for women aged 40 and beyond were 4.8% and 7.2%. Neural ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1983-05-15 00:00:00
abstract：OBJECTIVE:Postmenopausal women who receive sequential hormone replacement therapy with estrogen combined with progestogen for 10 to 24 d/mo for a prolonged period may have an elevated endometrial cancer risk relative to those who have never received hormone replacement therapy. We investigated whether daily use of estr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.108081
更新日期：2000-12-01 00:00:00
abstract：OBJECTIVE:The bleeding time is one of the most commonly used diagnostic tests to evaluate platelet-related hemorrhagic disorders. Magnesium has been shown in vitro to be a platelet antiaggregant. This study was conducted to evaluate the hypothesis that magnesium sulfate has no effect on the template bleeding time. STU...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)91363-7
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVE:We sought to determine the effect of magnesium sulfate on fetal heart rate baseline value, variability, and acceleration-deceleration pattern. STUDY DESIGN:Normal, nonlaboring pregnant patients at >30 weeks' gestation were recruited. Baseline fetal heart rate monitoring for 1 hour was performed. After an 800...
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(99)70093-1
更新日期：1999-11-01 00:00:00
abstract：:To investigate the effect of medroxyprogesterone acetate therapy upon the immune response and endogenous status of patients with primary or recurrent endometrial adenocarcinoma, 8 patients were treated with progestin therapy as inpatients for 33-80 days. Patients were studied intermittently for up to 72 months. Seru...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(72)90769-7
更新日期：1972-05-15 00:00:00
abstract：:Data are presented to define a unique group of preeclamptic/eclamptic patients with the finding of hemolysis (H), elevated liver enzymes (EL), and a low platelet count (LP). This entity has been termed the HELLP syndrome and may occur when the usual clinical findings to diagnose severe preeclampsia are absent. Often t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32330-4
更新日期：1982-01-15 00:00:00
abstract：:The adenosine-3',5'-monophosphate (cAMP) level in human amnion has been measured in vitro during short-term incubations, with or without prostaglandin E1 (PGE1) or isoproterenol. Concentration-response and kinetic curves were obtained. Isoproterenol and PGE1 stimulated cAMP production by amnion in a time-dependent man...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32592-3
更新日期：1981-09-15 00:00:00
abstract：:Influenza virus infection complicating pregnancy remains a matter of concern because of the frequency of these infections and possible associated increased maternal and perinatal risks. Influenza A/Bangkok (H3N2) infection occurred in a gravid woman in association with fever, chills, and uterine tenderness and contrac...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90604-5
更新日期：1984-08-15 00:00:00
abstract：:Evidence from autoradiographic studies with 1,25(OH)2-vitamin D3 (vitamin D, soltriol) labeled with tritium and from the literature indicates that the steroid hormone soltriol regulates and modulates reproductive processes in the female, as it does in the male. Nuclear receptors for soltriol have been discovered in th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(89)90699-6
更新日期：1989-11-01 00:00:00
abstract：OBJECTIVE:This study was to evaluate the predictive value of the uterine cervix tissue with the use of quantitative ultrasound gray level analysis for preterm delivery. STUDY DESIGN:Sixty-eight patients with preterm labor between 20 and 35 weeks of gestation were included. When two-dimensional transvaginal ultrasound ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/s0002-9378(03)00488-5
更新日期：2003-08-01 00:00:00
abstract：OBJECTIVE:Our aim was to determine whether hysterotomy and selective removal of an acardiac twin could improve the outcome of the "pump" twin. STUDY DESIGN:A literature and case review of the outcome of the acardiac twin malformation was performed. When an acardiac malformation was diagnosed at 19 weeks' gestation the...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91620-2
更新日期：1992-07-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine whether any association exists between preeclampsia and circulating platelet activating factor levels. STUDY DESIGN:We performed a cross-sectional observational study of circulating platelet activating factor concentrations in nonpregnant women, normotensive pregnant wo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.108894
更新日期：2000-10-01 00:00:00
abstract：:The technique and application of fine-needle aspiration cytology in the management of gynecologic cancer are discussed. The authors report 90 cases that have been evaluated by means of fine-needle technique. The technique has been applied both for primary diagnosis and for follow-up evaluation. Among the 90 cases repo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90437-3
更新日期：1981-01-15 00:00:00
abstract：:We studied differences in the role of genetic factors in prematurity and intrauterine growth retardation with the use of data on 312 Amish singleton live children ascertained from Amish records in Lancaster county, Pennsylvania, between 1969 and 1980. Birth and death certificates were obtained on all children, and inb...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(87)80181-3
更新日期：1987-08-01 00:00:00
abstract：:The prostaglandin synthetase inhibitor ibuprofen was evaluated for relief of severe primary dysmenorrhea in a controlled, double-blind, cross-over study in seven patients for a total of 23 menstrual cycles. In eight untreated cycles, the amount of prostaglandin (PG) in the menstrual fluid was higher than in nondysmeno...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：
更新日期：1979-09-01 00:00:00
abstract：OBJECTIVE:The arcus tendineous fasciae pelvis (ATFP) provides support to the anterior vagina. The objective of this study was to determine the impact of menopause on the structural components of the ATFP. STUDY DESIGN:Biopsy specimens of the ATFP were obtained from 10 premenopausal, 5 postmenopausal, and 12 postmenopa...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2003.08.040
更新日期：2004-03-01 00:00:00
abstract：BACKGROUND:After initiating a new contraceptive method, the provider has little control of how or whether that method is used. OBJECTIVE:We sought to compare unintended pregnancy rates by the initial chosen contraceptive method after counseling to traditional contraceptive effectiveness in the same study population. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.01.162
更新日期：2016-07-01 00:00:00
abstract：OBJECTIVE:A paucity of data exists concerning the normal glycemic profile in nondiabetic pregnancies. Using a novel approach that provides continuous measurement of blood glucose, we sought to evaluate the ambulatory daily glycemic profile in the second half of pregnancy in nondiabetic women. STUDY DESIGN:Fifty-seven ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.06.059
更新日期：2004-09-01 00:00:00
abstract：BACKGROUND:Singleton infants conceived using assisted reproductive technology have lower average birthweights than naturally conceived infants and are more likely to be born low birthweight (<2500 gr). Lower birthweights are associated with increased infant and child mortality and poor adult health outcomes, including ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.12.223
更新日期：2018-04-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess whether endometrial polyps (EMPs) represent cancer precursors. STUDY DESIGN:Age standardized incidence ratios (SIRs) of histologically verified endometrial cancers (EmCas) were estimated in women with EMPs and in women with uterine leiomyomata, which is a condition tha...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.03.036
更新日期：2010-09-01 00:00:00
abstract：:Many different approaches are advocated for management of iatrogenic (operative) ureteric injury. We herein report our experience with 28 ureteral injuries in 26 patients. In six patients, seven injuries were recognized at the time of the initial operation; four end-to-end anastomoses and three ureteroneocystostomies ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90283-8
更新日期：1986-09-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine, with the use of a rat model, the expression of tumor necrosis factor (TNF)-alpha, its receptors, and TNF-alpha-converting enzyme in perinatal brain lesions of early premature neonates. STUDY DESIGN:Lipopolysaccharide (LPS) was injected intraperitoneally in pregnant rat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.06.005
更新日期：2009-11-01 00:00:00
abstract：BACKGROUND:Cervical ripening of an unfavorable cervix can be achieved by placement of a transcervical catheter. Advantages of this method include both lower cost and lower risk of tachysystole than other methods. Despite widespread use with varying degrees of applied tension, an unanswered question is whether there is ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ajog.2016.09.082
更新日期：2017-01-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine which cervical ripening method, laminaria placement or extra-amniotic saline solution infusion, was associated with the shorter interval from induction to delivery in the second trimester. STUDY DESIGN:Women admitted for indicated second-trimester labor induction with a...
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：10.1067/mob.2001.112903
更新日期：2001-05-01 00:00:00
