Abstract：
OBJECTIVE:The purpose of this study was to assess the risk of neonatal death and morbidity in vertex-nonvertex second twins according to the mode of delivery and birth weight. STUDY DESIGN:Data from a retrospective cohort study that was based on all twin births in the United States (1995-1997) were used. RESULTS:A total of 15,185 vertex-nonvertex second twins were classified into 3 groups: (1) both twins were delivered by cesarean delivery (37.7%), (2) both twins were delivered vaginally (46.8%), and (3) the second twin was delivered by cesarean delivery after vaginal delivery of the first twin (15.5%). The risk of asphyxia-related neonatal deaths and morbidity was increased in the group in which both twins were delivered vaginally and the group in which both twins were delivered by cesarean delivery. The increase in neonatal death in the group in which both twins were delivered vaginally was stronger in the birth weight of < 1500 g. In contrast, in the group in which both twins were delivered vaginally and the group in which the second twin was delivered by cesarean delivery after the first twin was delivered vaginally, the increase in neonatal morbidity was greater in the group in which the birth weight was 1500 to 4000 g. CONCLUSION:The risk of neonatal death and morbidity in second-born twins is higher in the group in which both twins were delivered vaginally and the group in which the second twin was delivered by cesarean delivery after the first twin was delivered vaginally compared with the group in which both twins were delivered by cesarean delivery.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Yang Q,Wen SW,Chen Y,Krewski D,Fung Kee Fung K,Walker Mdoi
10.1016/j.ajog.2004.09.132subject
Has Abstractpub_date
2005-03-01 00:00:00pages
840-7issue
3eissn
0002-9378issn
1097-6868pii
S0002937804017697journal_volume
192pub_type
杂志文章abstract：OBJECTIVE:An infrequent clinical dilemma arises when a patient with uterine prolapse that is best treated vaginally is discovered to have coexisting endometrial cancer. Often the underlying cancer is only discovered intraoperatively or postoperatively. We have reviewed our experience in this situation in an effort to e...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(95)91399-8
更新日期：1995-06-01 00:00:00
abstract：:We studied sociocultural and medical factors in the Teso District in eastern Uganda and the Ankole District in western Uganda to discover the cause of the low and high fertility rates in these respective districts. The findings related to gonorrhea in women are presented in this article. Gonococcal cervicitis and clin...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)91083-2
更新日期：1980-12-01 00:00:00
abstract：OBJECTIVE:The efficacy, safety, and antibiotic-related charges for once-daily gentamicin with twice-daily clindamycin were compared with those of thrice-daily dosing of these antibiotics. STUDY DESIGN:Patients with puerperal endometritis or with chorioamnionitis in labor assessed to be at risk for endometritis were ra...
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(97)70269-2
更新日期：1997-10-01 00:00:00
abstract：OBJECTIVE:We sought to determine whether sacrospinous uterosacral ligament fixation restores the uterus to its normal anatomic position, preserving uterine function and allowing future childbearing. STUDY DESIGN:This study was undertaken at two separate medical centers. Women with symptomatic uterovaginal prolapse who...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90689-g
更新日期：1993-06-01 00:00:00
abstract：:Acute vaginitis is one of the most common diseases seen in the practice of office gynecology. Large survey studies of women with lower genital tract symptoms suggestive of vaginitis have demonstrated the presence of three major etiologic categories in acute vaginitis: (1) nonspecific vaginosis (Gardnerella vaginalis),...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(85)80002-8
更新日期：1985-08-01 00:00:00
abstract：OBJECTIVE:Our aim was to investigate the influence of vaginal colonization with specific microorganisms on the relationship between sexual intercourse during pregnancy and preterm delivery. STUDY DESIGN:As part of a multicenter, prospective study interviews and physical examinations were conducted with and genital cul...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90484-z
更新日期：1993-02-01 00:00:00
abstract：:The role of fetal prolactin (PRL) as a fetal adrenotropic hormone was investigated in eight chronically catheterized fetal lambs. Catheters were placed for measurement of plasma prolactin (PRL), cortisol (F), dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEA-S), and androstenedione (A). Daily (9 AM) ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90320-3
更新日期：1981-02-15 00:00:00
abstract：OBJECTIVE:The International Federation of Gynecology and Obstetrics (FIGO) staging for cervical cancer is based on clinical examination. Previous studies have demonstrated significant upstaging with surgical staging. However, no randomized trial has ever shown a survival benefit when radiation combined with chemoradiat...
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.2015.05.026
更新日期：2015-10-01 00:00:00
abstract：:The distribution of receptors for insulin and epidermal growth factor along the longitudinal axis of the uterine cavity was studied in 28 uteri obtained from women of reproductive age undergoing hysterectomy for benign conditions. Insulin binding to crude plasma membranes was higher (p less than 0.05) in the secretory...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(85)90591-5
更新日期：1985-09-01 00:00:00
abstract：:The pathogenesis of endometriosis is controversial. The two principal histogenetic theories are (1) metastases of endometrial tissues to an ectopic location (metastatic theory) and (2) metaplastic development of endometrial tissue at the ectopic site (metaplastic theory). Studies on the development of the coelomic cav...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(91)90255-p
更新日期：1991-07-01 00:00:00
abstract：BACKGROUND:Smoking is one of the most important modifiable risk factors for adverse maternal and neonatal outcomes. Smoking during pregnancy has been associated with fetal growth restriction, adverse pregnancy outcomes, and chronic adult diseases. Existing research has evaluated the risk of smoking on congenital defect...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.02.029
更新日期：2019-06-01 00:00:00
abstract：:With basic methodologic criteria as a framework, this report assesses the quality of the seven randomized controlled clinical trials conducted in five countries to compare a policy of routine electronic fetal monitoring with a policy of fetal heart rate monitoring by auscultation. One trial found a statistically signi...
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：10.1016/0002-9378(87)90197-9
更新日期：1987-01-01 00:00:00
abstract：OBJECTIVE:We wished to determine third-year medical students' opinions and knowledge related to complementary and alternative medicine (CAM) in a school with no formal or elective course on the subject. STUDY DESIGN:A questionnaire was offered to third-year medical students during their 8-week rotation on obstetrics a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.117484
更新日期：2001-09-01 00:00:00
abstract：:One hundred sixty-eight cases of puerperal laparoscopic sterilization are presented. The operative technique, complications, and morbidity are discussed. Intraoperative and postoperative complications occurred in six patients (3.6%). Operative time (21 minutes) and postoperative stay (2.4 days) compared favorably with...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32831-9
更新日期：1980-08-15 00:00:00
abstract：:144 patients aged 18-41 were observed to study a new method of cervical perfusion of prostaglandins (PGs) to induce labor and missed abortion. 46 patients were primigravidae, 86 had a normal pregnancy, and 58 had missed abortion. Duration of gestation was 37-42 weeks, and duration of amenorrhea in case of missed abo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90259-9
更新日期：1982-10-15 00:00:00
abstract：:Ovulation induction with pulsatile gonadotropin-releasing hormone achieves high ovulatory and pregnancy rates in hypogonadotropic hypogonadism while limiting the occurrence of ovarian hyperstimulation and multiple pregnancy. However, this form of therapy is apparently less effective in polycystic ovary syndrome. The a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)91438-i
更新日期：1990-11-01 00:00:00
abstract：:Intravenous hydralazine was administered to 16 spontaneously hypertensive rats on day 21 of gestation. The radioactive labeled microsphere technique was used to assess the change in organ perfusion produced by the drug. Vascular resistance to most organs was decreased, except to the placentas, stomach, and cecum, wher...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(87)90283-3
更新日期：1987-02-01 00:00:00
abstract：OBJECTIVE:Women with a history of preeclampsia (PE) have an increased prevalence of cardiometabolic, cardiovascular, and prothrombotic risk factors. Remotely, these women are at increased risk of developing cardiovascular and thrombotic disease. Decidual vasculopathy (DV) describes vascular lesions in the maternal spir...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.12.029
更新日期：2014-06-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess the risk of neonatal death in the second twin. STUDY DESIGN:We carried out a retrospective cohort study of 128,219 live born second twins in the United States for the years 1995 through 1997. The study subjects were divided into 3 groups: second twins who were delivere...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.05.013
更新日期：2004-09-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to characterize the innervation of the human female levator ani muscles. STUDY DESIGN:Detailed dissections of the peripheral innervation of the iliococcygeal, pubococcygeal, puborectal, and coccygeal muscles were performed in 12 fresh-frozen female cadavers (aged, 32-100 years...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.124844
更新日期：2002-07-01 00:00:00
abstract：:The aerobic and anaerobic cervical microflora was determined before operation and on day 4 after operation in groups of women undergoing a clinical trial of prophylaxis with three doses of cefoxitin, cefazolin, or placebo for infectious complications of nonelective cesarean section. Floral shifts occurred post partum,...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(84)90109-1
更新日期：1984-08-01 00:00:00
abstract：BACKGROUND:Chlamydia trachomatis infection is common and largely asymptomatic in women. If untreated, it can lead to sequelae such as pelvic inflammatory disease and infertility. It is unknown whether a patient's self-reported history of Chlamydia trachomatis infection is a valid marker of past infection. OBJECTIVE:Ou...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.12.005
更新日期：2017-04-01 00:00:00
abstract：:This modification of Gustavii's hypothesis recognizes the central role of saline-induced decidual cell necrosis and secondary prostaglandin release in the initiation of myometrial activity. In the absence of significant necrosis in the decidua basalis, passive stretching of the subplacental myometrium is considered to...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90693-1
更新日期：1976-12-15 00:00:00
abstract：:Management of idiopathic thrombocytopenic purpura (ITP) during pregnancy requires concern for both fetal and maternal morbidity and death. A review of 14 pregnancies revealed significant maternal morbidity but no maternal deaths. The perinatal mortally was21 per cent. Current recommendations for management include:...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)33490-1
更新日期：1975-05-01 00:00:00
abstract：OBJECTIVE:Our purpose was to describe subsequent pregnancy outcome and long-term maternal prognosis in women with HELLP syndrome (hemolysis, elevated liver enzymes, and low platelets) during the index pregnancy. STUDY DESIGN:This is a descriptive and analytic study of women with HELLP syndrome admitted to E.H. Crump W...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)90099-3
更新日期：1995-01-01 00:00:00
abstract：:Advances in perinatal care have resulted in a decline in mortality of very-low-birth-weight infants (< 1.5 kilograms) and also in an extension of the mortality period. To determine the current relevance of neonatal mortality results as indicators of outcome, all deaths among 427 very-low-birth-weight infants admitted ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90888-1
更新日期：1980-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the effects of 3 intravaginal antibacterial treatments on vaginal lactobacilli in patients with bacterial vaginosis (BV). STUDY DESIGN:Retrospective analyses were performed on Lactobacillus scores from 3 similar studies evaluating 2 2% clindamycin vaginal creams and...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.11.006
更新日期：2006-05-01 00:00:00
abstract：:Previous series that described fetuses with choroid plexus cysts have been too small to determine whether there is an association with trisomy 18 sufficiently high to warrant amniocentesis. To address this issue, we studied the incidence of choroid plexus cysts and other ultrasonographic abnormalities in 26 consecutiv...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)91304-u
更新日期：1990-04-01 00:00:00
abstract：:Optimal management of HIV-positive pregnant individuals involves many specific interventions made by many healthcare professionals at specific time-points before, during, and after pregnancy. Errors of omission are likely unless those professionals use a cognitive aid such as a checklist as a reminder of critical step...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.08.064
更新日期：2020-11-01 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
