Abstract：
OBJECTIVES:We observed decreases in cesarean birth rates at two Green Bay hospitals after the 1990 publication of our first cesarean section study. The purpose of this study was to determine the causes of those decreases and to see whether any outcome changes occurred with lower rates. An additional objective was to determine the perceptions of the 10 physicians regarding the determinants of cesarean birth rates. STUDY DESIGN:We compared recent cesarean birth rates (1990 to 1992) to former rates (1986 to 1988) for 10 of the 11 physicians analyzed in our previous studies. Newborn outcomes were analyzed to determine whether variations occur in comparing low to high cesarean rate physician groups. RESULTS:The total, primary, and repeat cesarean birth rates declined from 13.3% to 10.2%, 8.6% to 6.8%, and 4.7% to 3.4%, respectively, between 1986 to 1988 and 1990 to 1992. Variations in cesarean rates occurred among physicians and groups of physicians. Higher cesarean rates did not result in better perinatal outcome. Literature reports, residency training, continuing medical education attendance, and liability risks were the major determinants of cesarean birth as perceived by the 10 physicians in the study. The least important determinant, rated fifteenth of 15, was the national cesarean birth rate.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Sandmire HF,DeMott RKdoi
10.1016/s0002-9378(94)70355-8subject
Has Abstractpub_date
1994-06-01 00:00:00pages
1790-9; discussion 1799-802issue
6eissn
0002-9378issn
1097-6868pii
S0002937894001468journal_volume
170pub_type
杂志文章abstract：:In September, 1979, the Transfusion Committee at the University of Texas Medical Branch in Galveston implemented a preoperative blood ordering policy of type and screen (TS) for selected surgical procedures. During the first year in which this policy was in force, 2,301 TS requests were received, most of them for pati...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90762-1
更新日期：1982-03-01 00:00:00
abstract：:Cardiac function was cross-sectionally studied by means of M-mode and Doppler echocardiography in 40 fetuses of mothers with well-controlled insulin-dependent diabetes at 20 to 38 weeks of gestation. These variables were measured: interventricular septal thickness, ratio between the peak velocities during early passiv...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90526-w
更新日期：1991-03-01 00:00:00
abstract：OBJECTIVE:To determine the effects of 2 maternal injections with dexamethasone on the calculated oxygen and glucose deliveries to fetal cerebral and peripheral circulations during acute hypoxemia in sheep. STUDY DESIGN:Beginning at 124 days, ewes received 2 intramuscular injections of either dexamethasone (2 x 12 mg, ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.01.012
更新日期：2009-07-01 00:00:00
abstract：:Value-based care, best clinical outcome relative to cost, is a priority in correcting the high costs for average clinical outcomes of health care delivery in the United States. Hysterectomy represents the most common and identifiable nonobstetric major surgical procedure among women. Surgical approaches to hysterectom...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2018.11.124
更新日期：2019-03-01 00:00:00
abstract：BACKGROUND:The diagnostic criteria for preeclampsia have evolved from the traditional definition of de novo hypertension and proteinuria to a broader definition of hypertension with evidence of end-organ dysfunction. Although this change is endorsed by various societies such as the International Society for the Study o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.08.019
更新日期：2020-08-12 00:00:00
abstract：OBJECTIVE:This metaanalysis was undertaken to evaluate the relationship between tea intake and ovarian cancer risk. STUDY DESIGN:A systematic literature search up to September 2006 was performed in Medline, Embase, CANCERLIT, and the Cochrane Database. The summary relative risk was calculated. A sensitivity analysis w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,meta分析
doi：10.1016/j.ajog.2007.05.027
更新日期：2007-12-01 00:00:00
abstract：:This study was undertaken to evaluate the catecholamine response of the fetal rat to insulin-induced hypoglycemia in the mother. Twenty-four Sprague-Dawley rats at day 21 of gestation were used. Hypoglycemia was induced with regular insulin; then at timed intervals, the rats were anesthetized with pentobarbital. When ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90317-3
更新日期：1981-02-15 00:00:00
abstract：OBJECTIVE:The purpose of this study was to find out whether the effects of thermal stress on plasma catecholamines and plasma renin activity are altered by pregnancy. STUDY DESIGN:Nonpregnant (n = 15) and pregnant (13 to 14 weeks, n = 23; 36 to 37 weeks, n = 23) healthy women were examined. Samples were taken before t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91590-7
更新日期：1992-09-01 00:00:00
abstract：:This is the first case of a 65 year old healthy woman developing de novo mental confusion during treatment with 2 mg tolterodine twice daily. It is a rare complication of therapy for overactive bladder and resolved when dosage was reduced to 1 mg, although overactive bladder symptoms were still controlled. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.04.051
更新日期：2007-08-01 00:00:00
abstract：:We previously reported a significant relationship between the hematocrit levels of anemic fetuses and information derived from ultrasonographic and Doppler flow-velocity waveforms. In this study we prospectively tested two formulas for the prediction of hematocrit values, by use of gestational age, presence or absence...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90516-4
更新日期：1989-08-01 00:00:00
abstract：OBJECTIVE:To investigate the prevalence of urogenital symptoms and vaginal atrophy in postmenopausal breast cancer patients on adjuvant endocrine therapy. STUDY DESIGN:A population-based, cross-sectional study on postmenopausal breast cancer patients on adjuvant endocrine treatment and age-matched control subjects. Va...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.08.035
更新日期：2011-01-01 00:00:00
abstract：OBJECTIVE:The amount of bone mass and the tendency to fall are main risk factors for hip fractures and both deteriorate with advancing age. The dynamics between estrogen exposure and fracture protection seem too rapid to be explained by an effect on bone mass only. Postural balance function may be another potential mec...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70207-2
更新日期：1997-08-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to compare surgical techniques for the primary repair of obstetric anal sphincter lacerations. STUDY DESIGN:Patients with complete third- or fourth-degree lacerations were recruited and randomly assigned to either an end-to-end or overlapping repair. Data collection included demogra...
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.2004.11.045
更新日期：2005-05-01 00:00:00
abstract：OBJECTIVE:Classic radioligand binding techniques have suggested that beta 1- and beta 2-adrenergic receptor subtype proteins are expressed in myometrial tissue; however, to date these observations have not been confirmed at the level of the messenger ribonucleic acid for these clinically important membrane receptors. T...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70497-6
更新日期：1997-02-01 00:00:00
abstract：OBJECTIVE:We sought to determine if treatment of periodontal disease during pregnancy with an alcohol-free antimicrobial mouth rinse containing cetylpyridinium chloride impacts the incidence of preterm birth (PTB) in a high-risk population. STUDY DESIGN:This single-blind clinical trial studied pregnant women (6-20 wee...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.07.016
更新日期：2011-10-01 00:00:00
abstract：:The rates of maternal morbidity and mortality in the United States demand a comprehensive approach to assessing pregnancy-related risks. Numerous medical and nonmedical factors contribute to maternal morbidity and mortality. Reducing the number of women who experience pregnancy morbidity requires identifying which wom...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.12.006
更新日期：2020-12-09 00:00:00
abstract：:The serum ferritin level was used to diagnose iron depletion in 137 pregnant patients who came to an inner-city hospital outpatient clinic. Seventy-three patients (53.3%) had ferritin levels less than 20 micrograms/L, indicating iron depletion. The prevalence of iron depletion was 29% in the first trimester, 64% in th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90429-2
更新日期：1988-11-01 00:00:00
abstract：OBJECTIVE:Our purpose was to evaluate a vaginal device designed to support the bladder neck in women with urinary stress incontinence. STUDY DESIGN:Thirty-two physically active incontinent women underwent urodynamic evaluation and maintained a bladder diary before enrollment and after 4 weeks of device use. Outcome me...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(94)90470-7
更新日期：1994-07-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine whether red blood cells from patients with severe preeclampsia may exhibit increased membrane exposure of procoagulant phospholipids (i.e., phosphatidylserine), which may initiate intravascular clotting and platelet activation. STUDY DESIGN:The study group comprised 28 women: 9 w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70100-5
更新日期：1997-12-01 00:00:00
abstract：:A single intravenous injection of oxytocin into pregnant sheep (123 to 144 days' gestational age) causes a bout of myometrial activity and an increase in fetal plasma corticotropin levels. We hypothesized that a sustained increased frequency of myometrial contractures accelerates the normal increase in fetal adrenal s...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(92)91859-9
更新日期：1992-01-01 00:00:00
abstract：:Simulation in obstetrics allows us to practice in a safe environment. Simulations can improve the performance of individuals and obstetric teams. The evidence is overwhelming that, with simulated practice, obstetricians improve their technical and communication skills. Evidence is emerging that simulation ultimately m...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2011.09.012
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVE:Our purpose was to evaluate the clinical significance of intestinal dilatation detected by prenatal ultrasonographic examination in fetuses with gastroschisis. STUDY DESIGN:A retrospective chart review was performed of all patients cared for at Los Angeles County/University of Southern California Women's and...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(96)80037-8
更新日期：1996-10-01 00:00:00
abstract：OBJECTIVE:Fluctuations in sex hormones can trigger angioedema attacks in women with hereditary angioedema. Combined oral contraceptive therapies, as well as pregnancy, can induce severe attacks. The course of angioedema may be very variable in different women. STUDY DESIGN:Within the PREHAEAT project launched by the E...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.04.034
更新日期：2008-11-01 00:00:00
abstract：OBJECTIVE:Our aim was to examine the effect of the nitric oxide donor isosorbide mononitrate on the uterine cervix at term and to evaluate possible adverse effects of this treatment. STUDY DESIGN:Term pregnant women were randomly selected to receive either 40 mg vaginally administered isosorbide mononitrate or placebo...
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(03)00865-2
更新日期：2003-12-01 00:00:00
abstract：:Fetal active and quiet periods of behavioral activity were determined at 28 and 32 weeks' and 36 to 40 weeks' gestational age in insulin-dependent diabetic pregnancies and in normal pregnancies resulting in infants with weights appropriate for gestational age. Fetal active and quiet periods were based on observations ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90652-4
更新日期：1982-05-15 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：BACKGROUND:Previous studies have shown a decrease in cervical cancer associated with intrauterine device use. It has been hypothesized that intrauterine device use may alter the natural history of human papillomavirus infections, preempting development of precancerous lesions of the cervix and cervical cancer, but the ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.11.1053
更新日期：2017-04-01 00:00:00
abstract：:Prospective pregnancy evaluation through the combined use of a radioimmunoassay (RIA) for the beta-subunit of human chorionic gonadotropin (beta-hCG) and ultrasound during the first 42 days of gestation after ovulation was performed on a population asymptomatic for first-trimester spontaneous abortion. One hundred for...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90977-8
更新日期：1983-08-15 00:00:00
abstract：OBJECTIVE:The objective of the study was to examine the relationship between bilateral oophorectomy (BSO) and risk of coronary heart disease (CHD). STUDY DESIGN:We searched PubMed, EMBASE, meeting abstracts, and reference lists for studies that compared women with BSO at the time of hysterectomy with: (1) women with h...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2008.08.045
更新日期：2009-02-01 00:00:00
abstract：OBJECTIVE:Our goal was to improve the accuracy of estimating fetal weights among macrosomic fetuses with the traditional measurements of abdominal circumference, femur length, and head circumference. STUDY DESIGN:We used 4831 cases without anomalies from an ultrasonography laboratory database with an estimated fetal w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,meta分析
doi：10.1067/mob.2000.106853
更新日期：2000-06-01 00:00:00
