Abstract：
OBJECTIVE:To determine whether peak expiratory flow rate changes with pregnancy and advancing gestation. METHODS:We measured the peak expiratory flow rate in 57 women during each trimester of pregnancy and postpartum. During four visits, all subjects exhaled forcefully three times into a peak flow meter. For each visit, the best of three attempts defined their peak expiratory flow rate. Using accepted standard nomograms, we normalized peak expiratory flow rate with respect to height and age. Using analysis of variance, we compared the mean normalized peak expiratory flow rates in each of the trimesters and postpartum. RESULTS:The subjects' peak expiratory flow rates did not change significantly during the three trimesters and postpartum (P = .317). The mean peak expiratory flow rates for the three trimesters and postpartum were 434 +/- 18, 452 +/- 16, 444 +/- 15, and 450 +/- 16 (values in liters per minute +/- 95% confidence intervals [CIs]). The mean normalized peak expiratory flow rates for the three trimesters and postpartum were 0.92 +/- 0.036, 0.95 +/- 0.032, 0.94 +/- 0.030, and 0.95 +/- 0.031 (values +/- 95% CI). CONCLUSIONS:This study demonstrates that peak expiratory flow rate does not change with pregnancy and advancing gestation. Therefore, testing peak expiratory flow rate in pregnancy is valid, and physicians can use peak expiratory flow rate accurately and reliably in the management of pregnant women with asthma.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Brancazio LR,Laifer SA,Schwartz Tdoi
10.1016/S0029-7844(96)00512-1subject
Has Abstractpub_date
1997-03-01 00:00:00pages
383-6issue
3eissn
0029-7844issn
1873-233Xpii
S0029-7844(96)00512-1journal_volume
89pub_type
杂志文章abstract：:Because the rate of malignancies in young women exposed in utero to diethylstilbesterol (DES) is low, appropriate population screening methods have not been established. A case is presented that is believed to represent the first reported instance of a DES-exposed daughter who developed clear cell adenocarcinoma of th...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-03-01 00:00:00
abstract：:Variations of urethral pressure were registered with microtransducers in 427 gynecologic patients with lower urinary tract symptoms during urethrocystometry. Urethral instability (variation of urethral pressure greater than 15 cm of water) was found in 16.4% of patients. The comparison of the urinary symptoms and the ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
abstract：:Recent studies using newly devised serologic techniques have dramatically advanced our understanding of gonadal organogenesis and aberrant sexual differentiation. Thus XY gonadal dysgenesis, XX male syndrome, and XX true hermaphroditism, for example, may be seen as typifying specific errors of regulation, synthesis, o...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：
更新日期：1979-12-01 00:00:00
abstract：:Cytologic diagnosis of adenocarcinoma metastatic to the peritoneal surface is often hampered by the difficulty of differentiating between reactive mesothelial cells and macrophages from malignant epithelial cells by light microscopy. With in vitro tissue culture technics, the fibroblastic dedifferentiation of mesothel...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-197507000-00015
更新日期：1975-07-01 00:00:00
abstract：:Thirty-four patients using intrauterine contraceptive devices and experiencing excessive menstrual bleeding (more than 80 ml average loss for 2 cycles) were treated with the prostaglandin synthetase inhibitor naproxen. The trial was conducted according to a double-blind placebo-controlled crossover design. Each patien...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：OBJECTIVE:To evaluate whether preoperative dilation and curettage (D&C) lowers the risk of unexpected cancer at hysterectomy. METHODS:Women with complex atypical endometrial hyperplasia on sampling from January 2000 to May 2008 who underwent hysterectomy within 6 months were identified using a pathology database. Pati...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e3181b190d5
更新日期：2009-09-01 00:00:00
abstract：:This report describes an innovative use of videography in teaching retropubic space anatomy and surgery. After the standard abdominal incision has been made, the second surgical assistant places a gynecologic laparoscope, fitted with an endoscopic camera, into the retropubic space and guides the laparoscope documentin...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
abstract：:One thousand twenty inductions of labor by amniotomy and continuous infusion of oxytocin at the Royal Women's Hospital were reviewed. Three different starting rates of infusion of oxytocin were used by altering the concentration to 2, 5, or 10 U/L. There was no difference in success of induction as measured by inducti...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1989-12-01 00:00:00
abstract：:This review comprises 36 patients who were treated for Asherman's syndrome from 1968 to 1974 at the Sloane Hospital for Women. Of the 18 patients who later conceived only 6 had uncomplicated term deliveries. Four had premature deliveries resulting in neonatal death. Three had placenta accreta and postpartum hemorrhage...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1976-06-01 00:00:00
abstract：:A patient undergoing evaluation for primary infertility with regular menses had a normal hysterosalpingogram in the follicular phase and underwent diagnostic laparoscopy the next day, with the finding of a tubal pregnancy. The patient had a negative serum pregnancy test. Although a normal hysterosalpingogram and negat...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：:A review of 25 patients with more than 1 rubella titer by hemagglutination-inhibition testing revealed 3 patients with high positive titers that were reported to be negative in subsequent pregnancies. None of the patients had received the rubella vaccine. Because the sensitivity and reliability of hemagglutination-inh...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-08-01 00:00:00
abstract：:In order to ascertain the usefulness of urinary 17-ketosteroids (17-KS) in the evaluation of hirsutism, 28 paired determinations of 17-KS and serum androgens were performed in 26 hirsute women before (control) and after (post Dex) 7 days of dexamethasone (Dex) administration. Upper normal control and post Dex urinary ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1977-04-01 00:00:00
abstract：OBJECTIVE:To develop patient-centered outcome measures for clinical research by characterizing the effects of pregnancy and childbirth on functioning. METHODS:Five focus groups of mothers (n = 33) and three focus groups of clinicians (midwives [n = 8], obstetricians [n = 4], and family practitioners [n = 7]) were conv...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(98)00251-8
更新日期：1998-11-01 00:00:00
abstract：:Twenty-seven patients with the diagnosis of primary carcinoma of the vagina were treated by definitive radiotherapy. Twenty-three patients received a combination of external and interstitial iridium-192 implant irradiation and four patients received only interstitial irradiation. Twenty-one patients had squamous cell ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-198309000-00021
更新日期：1983-09-01 00:00:00
abstract：:A total of 410 colposcopic examinations were performed on 188 female cebus monkeys that were under study to determine the oncogenic potential of herpes simplex virus type 2 in this genus. A split-cone vaginal speculum was developed that permitted good observation of the vaginal cervix in the cebus monkey. The cervical...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1978-11-01 00:00:00
abstract：:Preterm birth is the leading cause of neonatal mortality and the most common reason for antenatal hospitalization (1-4). In the United States, approximately 12% of all live births occur before term, and preterm labor preceded approximately 50% of these preterm births (5, 6). Although the causes of preterm labor are no...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001260
更新日期：2016-01-01 00:00:00
abstract：OBJECTIVE:To compare the contraceptive effectivenesses of a polyurethane condom and a standard latex condom. Secondary outcomes of interest were safety, functionality, discontinuation, and acceptability. METHODS:We randomized 901 couples to use either the polyurethane condom or a standard latex condom as their only fo...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s0029-7844(02)02732-1
更新日期：2003-03-01 00:00:00
abstract：BACKGROUND:Patient-prosthesis mismatch is a known and severe complication after aortic valve repair in the general population. There is a paucity of literature regarding this condition in pregnancy. CASE:We present the clinical course of a pregnant woman with severe patient-prosthesis mismatch after aortic valve repla...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000000074
更新日期：2014-02-01 00:00:00
abstract：OBJECTIVE:To use a decision-analytic model to assess a comprehensive set of outcomes of prenatal genetic testing strategies among women of varying ages. METHODS:We assessed outcomes of six testing strategies incorporating diagnostic testing with chromosomal microarray, multiple marker screening, cell-free DNA screenin...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001029
更新日期：2015-10-01 00:00:00
abstract：OBJECTIVE:To assess the efficacy of a novel resorbable hydrogel barrier for preventing postoperative adhesions in animals. METHODS:A hydrogel barrier was formed in situ by photopolymerizing a solution of a macromolecular prepolymer in buffered saline using long-wavelength ultraviolet light. Two models in the rat were ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：OBJECTIVE:To compare the success of external cephalic version using spinal analgesia with no analgesia among nulliparas. METHODS:A prospective randomized controlled trial was performed in a tertiary referral center delivery suite. Nulliparous women at term requesting external cephalic version for breech presentation w...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1097/01.AOG.0000295605.38175.7b
更新日期：2007-12-01 00:00:00
abstract：OBJECTIVE:To estimate how implementation of the 2010 Affordable Care Act (ACA) might be associated with stage at diagnosis and time to treatment for women with ovarian cancer. METHODS:We conducted a retrospective cohort study using difference-in-differences analysis comparing stage at diagnosis and time to treatment b...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003630
更新日期：2020-02-01 00:00:00
abstract：OBJECTIVE:Case reports of suspected adverse pregnancy outcomes associated with prenatal exposure to angiotensin-converting enzyme inhibitors, particularly oligohydramnios, prolonged neonatal anuria, and defects of ossification of the skull dome, prompted us to examine pregnancy outcome in a large cohort of pregnant wom...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：:Malignant mixed müllerian tumors of the uterus are rare neoplasms occurring predominantly in postmenopausal women. We report the prenatal course and diagnosis of a stage III malignant mixed müllerian tumor at cesarean section in a 35-year-old woman. Despite aggressive radiation and chemotherapy, the patient died 14 we...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1988-06-01 00:00:00
abstract：OBJECTIVE:To investigate the value of the combined use of vaginal ultrasonography and endometrial sampling in the office for the diagnosis of endometrial disease in postmenopausal women. METHODS:One hundred forty consecutive postmenopausal women presenting with uterine bleeding or endometrial cells on cervical cytolog...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0029-7844(94)00421-9
更新日期：1995-03-01 00:00:00
abstract：:The male sexual partners of 34 women with cervical condyloma or cervical intraepithelial neoplasia (CIN) were examined for penile condylomata and/or urinary tract lesions. External lesions were detected in 18 (53%) of the male consorts of women with cervical lesions including 14 of 22 whose consorts had cervical condy...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1984-07-01 00:00:00
abstract：OBJECTIVE:To improve the accuracy of the diagnosis of preterm labor by comparing transvaginal sonography to digital examination of the cervix. METHODS:We performed transvaginal sonography in women with preterm labor who had completed a course of parenteral tocolysis. Cervical length was measured according to criteria ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1994-07-01 00:00:00
abstract：OBJECTIVE:To study the relation between the timing of the postpartum examination and the postpartum Papanicolaou smear. METHODS:One hundred eighty-four women in labor at Arlington Community Hospital were randomized to receive their postpartum Papanicolaou smear at 4, 6, or 8 weeks after delivery. Samples from the exoc...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1994-05-01 00:00:00
abstract：:A new rapid method of presurgical cleansing of the hands has been evaluated in a clinical setting. The effectiveness of a 90 second jet wash has been compared with a standard 10-minute presurgical scrub. Bacteriologic cultures were obtained from the fingertips of interns, residents, and staff of the Department of Obst...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：OBJECTIVE:To evaluate the feasibility of the detection of ureteral jets into the bladder in obstetric-gynecologic patients using transvaginal color Doppler ultrasound. METHODS:Fifty-two women were recruited and categorized into four groups: 1) 20 normal nonsurgical, 2) 17 post-cesarean delivery, 3) 12 post-total abdom...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/s0029-7844(96)00373-0
更新日期：1997-01-01 00:00:00
