Abstract:
OBJECTIVE:This study was undertaken to measure fetal renal volume by means of three-dimensional ultrasonography and to use those data to establish the accurate constant and formula for fetal renal volume assessment with two-dimensional ultrasonography. STUDY DESIGN:Singleton fetuses between 15 and 40 weeks' gestation were included. The volumes of both fetal kidneys were measured with three-dimensional ultrasonography. Three fetal renal diameters (largest anteroposterior, transverse, and longitudinal diameters) were measured, and the constant of the fetal renal volume formula was calculated. Linear regression curves were made for each kidney from the fetal renal volume, the three diameters, and the constant. RESULTS:A total of 112 fetuses were included. The following fetal renal volume formula was established: Fetal renal volume = Constant (R) x Largest anteroposterior diameter (x) x Largest transverse diameter (y) x Largest longitudinal diameter (z). The volumes, the three diameters, and the constants appeared different between the right and left kidneys but not statistically significantly so. CONCLUSION:Three-dimensional ultrasonography is useful in assessing fetal renal volume. The fetal renal volume formula makes possible accurate measurements of fetal renal volume by two-dimensional ultrasonography.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Hsieh YY,Chang CC,Lee CC,Tsai HDdoi
10.1016/s0002-9378(00)70227-4subject
Has Abstractpub_date
2000-02-01 00:00:00pages
377-9issue
2eissn
0002-9378issn
1097-6868pii
S0002-9378(00)70227-4journal_volume
182pub_type
杂志文章abstract:OBJECTIVE:We compared the diagnostic performances of fetal fibronectin assay of cervical and vaginal secretions and of transvaginal ultrasonographic evaluation of the uterine cervix in the prediction of preterm delivery of patients presenting with preterm labor and intact membranes. STUDY DESIGN:One hundred eight pati...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(96)70020-0
更新日期:1996-11-01 00:00:00
abstract:OBJECTIVES:Our goals were to determine the mortality risk for infants weighing 501 to 1500 gm according to gestational age, birth weight, and gender and to document birth weight-related changes in mortality and morbidity over a 5-year time period. STUDY DESIGN:In this observational study perinatal data were prospectiv...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/0002-9378(95)90628-2
更新日期:1995-11-01 00:00:00
abstract::Real time ultrasound was used in pregnant women who were considered to be at risk for development of pulmonary hypoplasia (n = 26). The population consisted of women who had either premature rupture of membranes (n = 16) or oligohydramnios (n = 10). The ratio calculated by comparing the fetal thoracic circumference to...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(87)80046-7
更新日期:1987-09-01 00:00:00
abstract:OBJECTIVE:We investigated in a pregnant rabbit model the effects of intravaginal inoculation of type la group B streptococci and antibiotic intervention. STUDY DESIGN:We inoculated 10(4) to 10(6) cfu of type la group B streptococci into the upper vagina hysteroscopically at day 21 to 27 of a 31-day gestation. Initiall...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(96)70153-9
更新日期:1996-08-01 00:00:00
abstract::Samples of cervical tissue were obtained from women immediately following term delivery from spontaneous labor or oral PGE2-induced labor and from a small nunber of nonpregnant women in the reproductive years undergoing hysterectomy for benign gynecologic disease. The measured strips were placed in a well-oxygenated b...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(76)90278-7
更新日期:1976-09-15 00:00:00
abstract::The mechanical properties of the chorioamniotic membranes have been studied by several investigators over the past 100 years. No relationship between membrane strength, as measured by rupture tension, and premature or non-premature rupture of the membranes has been demonstrable. In the present study, several measures ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(76)90788-2
更新日期:1976-07-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the efficacy of osteopathic manipulative treatment (OMT) to reduce low back pain and improve functioning during the third trimester in pregnancy and to improve selected outcomes of labor and delivery. STUDY DESIGN:Pregnancy research on osteopathic manipulation optimi...
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.2014.07.043
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Oxidative stress occurs when the production of damaging free radicals and other oxidative molecules exceeds the capacity of the body's antioxidant defenses. Oxidative stress is implicated in diseases that are associated with prematurity (such as retinopathy, cerebral palsy, intraventricular hemorrhage, and ne...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2003.357
更新日期:2003-07-01 00:00:00
abstract::In responsive tissues the induction of 25-hydroxycholecalciferol 24-hydroxylase activity is a marker of 1,25-dihydroxycholecalciferol action. In this study we investigated the responsiveness of various malignant cells, which were derived from carcinomas of gynecologic origin, to 1,25-dihydroxycholecalciferol; we did s...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(86)90162-6
更新日期:1986-12-01 00:00:00
abstract::Seventeen patients in whom uterine activity responded favorably to parenteral magnesium sulfate were given oral magnesium gluconate for continued tocolysis. The mean serum magnesium level before therapy was 1.44 +/- 0.22 mg/100 ml, whereas 2 hours after initiation of oral magnesium it was 2.16 +/- 0.32 mg/100 ml (p le...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(87)90299-7
更新日期:1987-02-01 00:00:00
abstract:BACKGROUND:The process of childbirth is one of the most crucial events in the future health and development of the offspring. The vulnerability of parturients and fetuses during the delivery process led to the development of intrapartum monitoring methods and to the emergence of alternative methods of delivery. However...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2020.05.025
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to compare the rate of vaginal birth after cesarean (VBAC) attempt, VBAC failure, and major maternal adverse outcomes in women with a previous cesarean with twin or singleton pregnancies. STUDY DESIGN:This was a multicenter retrospective cohort study between the years 1996 and 2...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2005.06.038
更新日期:2005-09-01 00:00:00
abstract::Norinyl 1+50 oral contraceptive pills contain 1 mg of the progestin, norethindrone, and .05 mg (or 50 mcg) of the estrogen, mestranol. These pills can either be taken in 21-day or 28-day therapy cycles. This dosage is low but effective. Oral contraception is supposed to prevent pregnancy by suppressing ovulation and ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1973-01-01 00:00:00
abstract::A case discussing the medical management of a 30-year-old gravid patient with recurrent pericarditis and pericardial constriction secondary to juvenile rheumatoid arthritis is presented. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(86)90418-7
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:A controversy exists regarding the time to monitor blood glucose in the diabetic pregnancy (60 or 120 minutes after meals). Using a novel approach that provides continuous measurement of blood glucose, we sought to determine postprandial glucose profile in the diabetic pregnancy. STUDY DESIGN:Subjects were c...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2004.01.055
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:This study was designed to evaluate the uterine vascular responses to endothelin-1 in pregnant and estrogen-treated nonpregnant sheep. STUDY DESIGN:Seven pregnant and five nonpregnant oophorectomized ewes received local uterine artery infusions of endothelin-1, norepinephrine, and phenylephrine. Arterial blo...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(92)91755-y
更新日期:1992-12-01 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
abstract::Sixty patients with chronic pelvic pain were monitored after diagnostic laparoscopy had excluded obvious pelvic pathology. Six months after the procedure only two patients described their symptoms as unchanged or worse. Treatment should be limited to the minority of patients whose symptoms remain 6 months after laparo...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(92)91343-9
更新日期:1992-03-01 00:00:00
abstract:OBJECTIVE:The objective of the study was to evaluate the differences in vaginal culture, microscopy, and Gram stain between postmenopausal women who wear pessaries and those who do not to explain pessary-related, bothersome vaginal discharge. STUDY DESIGN:Postmenopausal women not using exogenous estrogen who had eithe...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.07.024
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess the role of fetal nasal bones evaluation in first-trimester screening for trisomy 21 in selected and unselected pregnancies. STUDY DESIGN:Visualization of the nasal bones was attempted in women attending for routine nuchal translucency screening (unselected population,...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2005.09.008
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVES:This study was undertaken to determine whether the addition of extra-amniotic saline infusion improves the efficacy of the Foley catheter in women undergoing cervical ripening and induction of labor with an unfavorable cervical examination. STUDY DESIGN:One hundred consenting women with a Bishop score less ...
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.2003.12.039
更新日期:2004-07-01 00:00:00
abstract::The activity of polyamine oxidase in human pregnancy serum was measured by our new specific method with radioisotopic N1-acetylspermine as substrate. The activity in pregnancy serum was very low and did not increase during gestation; it was not higher than that in nonpregnancy serum. The high polyamine oxidase activit...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(91)90390-d
更新日期:1991-11-01 00:00:00
abstract::The pathogenesis of eclamptic convulsions is unknown. A review of the world literature indicates considerable controversy regarding the ideal anticonvulsant to prevent or control these convulsions. Parenteral magnesium sulfate is the drug of choice to control eclamptic convulsions in North America, but it is rarely us...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/0002-9378(90)90002-o
更新日期:1990-05-01 00:00:00
abstract::Prolactin production by decidualized human endometrium has been demonstrated in organ explant cultures and presumed to be of stromal origin by immunocytochemistry and the presence of simultaneous stromal histologic changes. To test the hypothesis that endometrial prolactin production is exclusively of stromal origin, ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(90)91325-7
更新日期:1990-04-01 00:00:00
abstract::The significance of midline wavering in the central nervous system as a diagnostic sign in hydrocephalus was evaluated prospectively in 27 hydrocephalic fetuses. No normal fetuses in a control group exhibited a wavering midline at three different times in pregnancy. Wavering along the entire length of the midline was ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(84)90254-0
更新日期:1984-07-15 00:00:00
abstract:OBJECTIVE:Our purpose was to evaluate the influence of the route of drug administration and target tissue vascularity on the distribution of a photosensitizer, Photofrin porfimer sodium, in the uterus. STUDY DESIGN:The study was divided in two phases. In phase I 80 mature female rats were hormonally suppressed and the...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(93)90517-m
更新日期:1993-02-01 00:00:00
abstract:OBJECTIVE:Our goal was to determine whether laparoscopic salpingostomy is preferable to laparoscopic methotrexate injection in the management of unruptured tubal gestation. STUDY DESIGN:Forty-eight patients with unruptured tubal pregnancy were prospectively randomized to either laparoscopic salpingostomy or laparoscop...
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:10.1053/ob.1996.v175.a74249
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:Cesarean delivery rates at extreme prematurity have regularly increased over the past years, and few previous studies have investigated severe maternal morbidity associated with extreme preterm cesarean delivery. OBJECTIVE:The aim of this study was to evaluate whether gestational age <26 weeks of gestation ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2019.01.005
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine the effect of docosahexaenoic acid supplementation on plasma phospholipid docosahexaenoic acid content and indices of depression and information processing for women who breast-feed. STUDY DESIGN:Mothers who planned to breast-feed their infants were assigned randoml...
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.2003.275
更新日期:2003-05-01 00:00:00
abstract:OBJECTIVE:Both phosphorylated (p) mammalian target of rapamycin (mTOR) and protein S6 kinase 1 (p70S6K) are known to regulate protein synthesis and are affected during intrauterine growth restriction (IUGR). We studied the mTOR pathway during hyperthermia (HT)-induced IUGR in sheep. STUDY DESIGN:Beginning at 40 days g...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2009.07.031
更新日期:2009-12-01 00:00:00