Abstract：
OBJECTIVE:We assessed intraobserver and interobserver variations in the performance of the amniotic fluid index. STUDY DESIGN:A total of 34 women in the third trimester with intact membranes were examined twice by each of three examiners. The amniotic fluid index was measured once by each of the three examiners in order, then repeated by each examiner in the same order. Numeric displays on the video terminal screen were covered so that the examiners were blinded to actual measurement values. Results were recorded on hard copy for later data analysis. A senior investigator supervised all examinations to monitor consistency of technique. RESULTS:Overall, the coefficient of variation for amniotic fluid index measurements varied from 10.8% within examiners to 15.4% between examiners. Both between and within variation of absolute differences increased as the amniotic fluid index value increased, while the percent difference decreased. Simply repeating the test by the same examiner will decrease the coefficient of variation significantly. CONCLUSION:Although intraobserver and interobserver variability cannot be eliminated, its impact can be minimized by use of the same examiner for serial studies.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Bruner JP,Reed GW,Sarno AP Jr,Harrington RA,Goodman MAdoi
10.1016/0002-9378(93)90386-wsubject
Has Abstractpub_date
1993-04-01 00:00:00pages
1309-13issue
4eissn
0002-9378issn
1097-6868pii
0002-9378(93)90386-Wjournal_volume
168pub_type
杂志文章abstract：:Over 2,148 cycles of midcycle oral administration of R 2323 (50 mg. per day on Days 15,16, and 17), the authors recorded a drug-failure pregnancy rate of 5 per cent and an unusually regular cycle length of 28 +/- 2 days. During this trial, endometrial biopsies obtained in the luteal phase were examined by light and el...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(76)90807-3
更新日期：1976-08-15 00:00:00
abstract：:Endometrial adenocarcinomas from 96 patients were studied for their biochemical estrogen receptor content as well as immunohistochemical localization of estrogen receptor. A well-characterized specific monoclonal antihuman estrogen receptor antibody (H222 sp gamma) as amplified by peroxidase/antiperoxidase techniques ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(87)80090-x
更新日期：1987-10-01 00:00:00
abstract：OBJECTIVE:Amino acid substitutions in platelet membrane glycoproteins result in alloantigens implicated in neonatal alloimmune thrombocytopenia. We report the use of the reverse dot blot technique to genotype the five major fetal platelet alloantigens from amniotic fluid cells. STUDY DESIGN:We evaluated a patient with...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)91353-x
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVE:Before parturition are there useful and valid predictors of successful or unsuccessful vaginal birth after previous cesarean birth that could be used to enhance the obstetric care of a patient and her pregnancy? STUDY DESIGN:The clinical course and outcome of all patients who attempted vaginal birth after ce...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(92)91572-r
更新日期：1992-06-01 00:00:00
abstract：:Plasma levels of estrogen were measured daily by radioimmunoassay for 28 consecutive days in 12 healthy euthyroid women and 15 thyrotoxic women (10 with hypomenorrhea and 5 with amenorrhea) before commencement of therapy (except in one case) in an effort to increase understanding of the relationship between the thyroi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90732-2
更新日期：1975-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess the differential diagnostic potential of a combination of CA 125, CA 15-3, and CA 72-4 antigens in the definition of malignant disease, especially ovarian carcinoma in patients with a pelvic mass. STUDY DESIGN:A total of 412 patients were evaluated in a multicenter, re...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1067/mob.2002.123768
更新日期：2002-08-01 00:00:00
abstract：:Virilization in pregnancy has been reported with various ovarian neoplasms. Presented is a case of maternal virilization resulting from an unclassified sex-cord stromal neoplasm. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(85)90627-1
更新日期：1985-07-01 00:00:00
abstract：:Calcium channel blockers are arterial vasodilators effective in the treatment of hypertension. Therefore nicardipine, a dihydropyridine calcium channel blocker, should modulate angiotensin II-induced vasoconstriction. Regional blood flows were measured with radioactive microspheres in five chronically catheterized nea...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90780-1
更新日期：1989-10-01 00:00:00
abstract：:A computer program for pattern recognition of fetal electroencephalogram has been used to analyze the records of nine fetuses, known to be neurologically abnormal at 1 year of age. In 4,913 10 second epochs of adequate FEEG, Low Voltage Irregular (LVI) accounted for 17.8 per cent, Mixed activity (MIX) for 30.5 per cen...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1976-06-15 00:00:00
abstract：:This article addresses the question of whether the uterine cavity is normally sterile and reviews the difficulties in conducting microbiologic studies of the endometrium, the limitations of conventional microbiologic techniques (cultivation-dependent), and the potential contribution of molecular microbiology to examin...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2005.11.050
更新日期：2006-03-01 00:00:00
abstract：OBJECTIVE:Nitric oxide deficiency has been implicated in adverse pregnancy outcomes. Mice that lack endothelial nitric oxide synthase (NOS3) have abnormal in vitro vascular reactivity. Our objective was to assess the effect of a previous pregnancy on the abnormal vascular function of NOS3 knockout mice. STUDY DESIGN:C...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.06.062
更新日期：2007-09-01 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：:The concentrations of certain steroids in arterial and ovarian venous blood were measured in 42 postmenopausal women undergoing hysterectomy for uterine disease. A concentration gradient across the ovary was found for testosterone in 21 women, for androstenedione in 16, for estradiol in 15, for estrone in 8, and for d...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90287-2
更新日期：1980-11-01 00:00:00
abstract：:Progestogens are the first drugs to demonstrate reproducibly a reduction in the rate of early preterm birth. The efficacy and safety of progestogens are related to individual pharmacologic properties of each drug within this class of medication and characteristics of the population that is treated. The synthetic 17-hy...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2015.10.934
更新日期：2016-01-01 00:00:00
abstract：:Ultrasonographic determination of biparietal diameter/femur length ratios performed at 16 or 17 weeks' gestation in fetuses with trisomy 21 were not statistically different from those of 155 normal fetuses. It appears that this test could not be used for screening for trisomy 21. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90636-l
更新日期：1990-11-01 00:00:00
abstract：:Sound pressure in amniotic fluid was created by application of either an electronic artificial larynx or a standard audiometric earphone to the abdominal surface of pregnant ewes. Sound transmission was assessed with a hydrophone placed near the ear of the fetus within the intact amnion. Sound pressures produced by th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90526-1
更新日期：1988-07-01 00:00:00
abstract：:Nineteen cases of spontaneous second-trimester abortion associated with the intrauterine device (IUD) are reviewed and compared to 30 cases of spontaneous second-trimester abortion not associated with the IUD. Fifteen of the IUD's were Dalkon shields and four were Lippes loops. 16 of the 19 IUD-associated abortions be...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90099-5
更新日期：1976-02-15 00:00:00
abstract：OBJECTIVE:Our purpose was determine whether there are ethnic differences in vaginal colonization with organisms reputed to be associated with preterm delivery. STUDY DESIGN:In seven urban medical centers in the United States from 1984 to 1989, 13,747 predominantly low-socioeconomic-status women at 23 to 26 weeks' gest...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(96)70617-8
更新日期：1996-05-01 00:00:00
abstract：:Aspiration curettage proved acceptable to patients and medical staff when incorporated into a busy outpatient practice. The diagnostic reliability of curettings obtained was shown to be 93.5 per cent accurate. In all patients where mucus only is obtained, where symptoms persist or recur, or when aspiration curettage i...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90622-5
更新日期：1975-05-01 00:00:00
abstract：OBJECTIVE:Thrombotic vascular disease may predispose patients to the development of preeclampsia. The purpose of this study was to determine whether maternal or fetal genotype frequencies of the inherited thrombophilic gene mutations (factor V Leiden, methylenetetrahydrofolate, and prothrombin) are altered in severe pr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.114691
更新日期：2001-07-01 00:00:00
abstract：:A retrospective study of 56 patients treated for carcinoma in situ of the vulva over a 24-year period has shown a relative increase in the occurrence of this neoplasm. Only 6.7% of patients in the first 14 years of the study period were less than 35 years of age, as compared with 29.3% in the last decade. In the earli...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90669-0
更新日期：1984-11-15 00:00:00
abstract：OBJECTIVE:To define the incidence of hypoglycemia and identify risk factors in neonates from term, singleton, nondiabetic pregnancies. STUDY DESIGN:We conducted a matched case-control study of term, singleton infants weighing more than 2500 g in nondiabetic pregnancies. Cases with hypoglycemia (glucose < 50 mg/dL) wer...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.10.015
更新日期：2009-05-01 00:00:00
abstract：:Six patients having different subtypes of von Willebrand's disease were followed up during eight complete pregnancies. Two additional pregnancies terminated in spontaneous abortions. Five pregnancies ended in cesarean section either because of obstetric problems (three) or electively (two) to avoid infant bleeding. Th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90290-5
更新日期：1986-09-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine whether changes in vaginal dimensions after transvaginal reconstructive pelvic surgeries affect the risk for postoperative dyspareunia. STUDY DESIGN:Charts of all sexually active patients who underwent transvaginal reconstructive pelvic surgeries in our institution ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.10.628
更新日期：2005-05-01 00:00:00
abstract：:Forty-six infants exposed to indomethacin in utero for treatment for preterm labor were compared with infants from two control groups. In one control group the next consecutive patient treated with a tocolytic agent was used, and the other control group was formed by picking the next consecutive patient matched by ges...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(86)80012-6
更新日期：1986-10-01 00:00:00
abstract：OBJECTIVE:To test the effect of prolactin (PRL) on expression of proinflammatory cytokines and matrix metallopeptidase 9 (MMP-9) in vitro. STUDY DESIGN:Tissue explants were incubated from 4 to 48 hours alone or in the presence of 500 ng/mL PRL, and mRNA expression in tissues and secretion of interleukin (IL)-1β, tumor...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.01.039
更新日期：2014-07-01 00:00:00
abstract：OBJECTIVE:We compared localization of human immunodeficiency virus type 1 within human placentas infected in utero with localization within human placental explants infected in vitro. STUDY DESIGN:Placental tissues from 3 cases of vertical transmission of human immunodeficiency virus type 1 were studied. Human placent...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(00)70514-x
更新日期：2000-01-01 00:00:00
abstract：:Pelvic blood flow was serially determined in 19 pregnant ewes before and after the induction of one-kidney renal hypertension. The six twin gestations and 13 singleton gestations behaved similarly for all parameters, except renal blood flow. After the renal preparatory surgical procedure, there was a 19% increase in m...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32681-3
更新日期：1981-12-15 00:00:00
abstract：OBJECTIVE:Lipopolysaccharide pretreatment potentiates hypoxic ischemic injury. We hypothesized that docosahexaenoic acid pretreatment would improve function and reduce brain volume loss in this rat model of perinatal brain injury and inflammation. STUDY DESIGN:Seven-day-old rats were divided into 3 groups: intraperito...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.01.076
更新日期：2010-05-01 00:00:00
abstract：:The aggressive management of early labor has been suggested as a means to lower the cesarean section rate for dystocia. The aim of our study was to prospectively evaluate a protocol of early intervention in primigravid women with infrequent uterine contractions during early labor in relation to the course of labor, th...
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(87)80288-0
更新日期：1987-11-01 00:00:00
