Abstract:
:Immediate maternal and fetal cardiovascular responses to different doses of nicotine and carbon monoxide were studied in 24 pregnant smokers. A noninvasive pulsed Doppler ultrasound technique was used for measuring fetal blood flow in the descending thoracic aorta, the intra-abdominal part of the umbilical vein, and in the umbilical artery. Maternal plasma concentrations of nicotine, carbon monoxide, and catecholamines were measured. Maternal heart rate, blood pressure, fetal heart rate, and fetal aortic and umbilical vein blood flow increased, while pulsatility indices of the fetal aortic and umbilical artery blood velocity waveforms decreased, with increasing maternal nicotine levels; all were unaffected by carbon monoxide. Catecholamine levels remained unaffected. These results seem to confirm that the maternal nicotine intake due to smoking has an immediate, dose-dependent effect on fetal blood flow.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Lindblad A,Marsál K,Andersson KEsubject
Has Abstractpub_date
1988-09-01 00:00:00pages
371-82issue
3 Pt 1eissn
0029-7844issn
1873-233Xjournal_volume
72pub_type
临床试验,杂志文章abstract:BACKGROUND:A low-lying placenta or placenta previa is frequently associated with postpartum hemorrhage from a low implantation site. We describe the successful use of a thrombin-soaked uterine pack for this condition. CASE:A 30-year-old woman, gravida 3, para 0-0-2-0, had placenta previa diagnosed by ultrasound at 26 ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(94)00231-2
更新日期:1995-05-01 00:00:00
abstract:BACKGROUND:Approximately 24% of American adults have tattoos. Studies of humans and mice demonstrate that tattoo pigment migrates to lymph nodes and can cause lymphadenopathy. CASE:A 32-year-old woman presented with a 6-cm vulvar mass and extensive bilateral inguinofemoral lymphadenopathy. Bilateral small tattoos were...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3182583be2
更新日期:2012-08-01 00:00:00
abstract::As the human immunodeficiency virus (HIV) epidemic affects more women, clinicians are increasingly observing pelvic inflammatory disease (PID) in HIV-infected women. The extent to which PID is a factor in the recognition of HIV or HIV is a factor in the recognition of PID is unknown. Even less is known about how HIV i...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract::In a randomized, double-blind clinical trial, 208 women who underwent abdominal hysterectomy received either cefazolin (N = 108) or moxalactam (N = 100) as perioperative antimicrobial prophylaxis. There were no differences between the two groups in rates of serious infection, minor wound infection, standard febrile mo...
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:1985-09-01 00:00:00
abstract::Peer review is the major method used by the scientific community to evaluate manuscripts and decide what is suitable for publication. However, this process in its current design is not bulletproof and is prone to reviewer and editorial bias. Its lack of objectivity and transparency raise concerns that manuscripts migh...
journal_title:Obstetrics and gynecology
pub_type: 社论
doi:10.1097/AOG.0000000000003260
更新日期:2019-06-01 00:00:00
abstract::The case report of a fatal result in an abortion requested because X-ray diagnostic studies of the gallbladder and intestine had been made during an undiagnosed early pregnancy is presented. A uterine vacuum aspirator had not been purchased by the hospital. A portable laboratory vacuum pump with an appropriate sucti...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1972-05-01 00:00:00
abstract:BACKGROUND:To demonstrate that intravenous (IV) iron therapy rapidly can secure the physiologic correction of severe nonhemorrhagic anemia more safely than blood component therapy and recombinant erythropoietin treatment. CASE:An 18-year-old woman with beta-thalassemia in her 33rd week of gestation had a hemoglobin le...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(97)00261-5
更新日期:1997-10-01 00:00:00
abstract::Ultrasound scan showed some degree of placenta previa in 503 patients. Of this group, 5.6% (28) had clinically significant bleeding or documented placenta previa at delivery. A scoring system based on placental localization was not successful in predicting who was at high risk for bleeding. However, the likelihood of ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1983-05-01 00:00:00
abstract:OBJECTIVE:To compare outpatient to inpatient management of acute pyelonephritis in pregnancy beyond 24 weeks' gestation. METHODS:Ninety-two gravidas past 24 weeks' gestation, randomized to outpatient or inpatient therapy, received two 1-g doses of intramuscular ceftriaxone at 24-hour intervals while hospitalized, then...
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(99)00386-5
更新日期:1999-11-01 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::The risk of a first episode of pelvic inflammatory disease resulting in extensive surgery was examined in relation to duration of intrauterine device (IUD) use in a case-control study. Extensive surgery for pelvic inflammatory disease was defined as hysterectomy or bilateral adenexal surgery, with pelvic inflammatory ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1984-02-01 00:00:00
abstract::Sacral nerve stimulation delivers nonpainful electrical pulses to the sacral nerves that modulate the reflexes that control the bladder, bowels, and pelvic floor musculature. This relatively simple procedure was generated to improve and restore function in patients with a variety of pelvic floor disorders. Currently t...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/AOG.0000000000002968
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND:Human metapneumovirus has recently been recognized as an important cause of severe respiratory viral infections and of viral infections in patients admitted to intensive care units. Little is known about the course of this infection in pregnancy. CASE:A late-preterm primigravid woman was admitted to the int...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000002165
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVE:To investigate whether the 2006 American Society for Colposcopy and Cervical Pathology guidelines for conservative management of minimally abnormal Pap test results (atypical squamous cells of undetermined significance, human papillomavirus-positive, and low-grade squamous intraepithelial lesions) and moderat...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e31824e9f2f
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:To determine whether the diagnosis of cervical intraepithelial neoplasia (CIN) grade 1 increases the risk of CIN 3 above what is observed for human papillomavirus (HPV) infection. METHODS:Using data from the atypical squamous cells of undetermined significance (ASCUS) and low-grade squamous intraepithelial l...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1097/AOG.0b013e318237caf4
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To evaluate the prevalence of hepatitis B virus (HBV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV) among pregnant women in Puerto Rico. METHODS:An anonymous serosurvey was conducted in four prenatal clinics in San Juan, Puerto Rico, involving women presenting consecutively for their first...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(94)00319-9
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVE:To estimate the relation between undercoiling and overcoiling of the umbilical cord and adverse pregnancy outcome. METHODS:Umbilical cords and hospital records of 885 patients were studied in a cross-sectional study design. The umbilical coiling index was determined as the number of complete coils divided by...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000209197.84185.15
更新日期:2006-05-01 00:00:00
abstract:OBJECTIVE:To identify characteristics associated with high inpatient daily opioid consumption after cesarean delivery. METHODS:This is a retrospective cohort study of all cesarean deliveries performed under neuraxial anesthesia with neuraxial morphine, at a single institution from January 1, 2015, to December 31, 2015...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003087
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:To compare the effects of treatment with nicardipine and metoprolol in patients with hypertension during pregnancy. METHODS:One hundred pregnant patients with mild or moderate hypertension followed at the Centre Hospitalier Intercommunal de Créteil (France) were randomly allocated to treatment with either ni...
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:1994-09-01 00:00:00
abstract::Pelvic organ prolapse (POP) is a common, benign condition in women. For many women it can cause vaginal bulge and pressure, voiding dysfunction, defecatory dysfunction, and sexual dysfunction, which may adversely affect quality of life. Women in the United States have a 13% lifetime risk of undergoing surgery for POP ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003520
更新日期:2019-11-01 00:00:00
abstract::It is generally accepted that the human placenta is impermeable to free insulin and that insulin present in the fetus is entirely of fetal origin. A recent study suggested that antibody-bound animal insulin crosses the placental barrier and may exert direct effects on fetal growth. We hypothesized that mothers with in...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract:OBJECTIVES:To assess the ability of obstetricians to recognize parturients at risk for difficult intubation and to examine the effect of education in airway examination on that ability. METHODS:The airways of 160 parturients were examined by four physicians: one attending and one resident obstetrician, and one attendi...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(98)00552-3
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVE:To estimate the occurrence of synchronous epithelial ovarian and endometrial cancers among ovarian cancer patients and to assess survival of women with synchronous cancers. METHODS:Synchronous ovarian and endometrial cases were identified using data from the Surveillance, Epidemiology, and End Results Progra...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e31819c7bdf
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:To evaluate absorption of estradiol (E2) and compare two low doses of 17 beta-E2 (25 microgram and 10 microgram) in postmenopausal women with atrophic vaginitis. METHODS:In a double-masked, randomized, parallel-group study, 58 postmenopausal women were treated with 25 microgram or 10 microgram of 17 beta-E2 ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0029-7844(01)01385-0
更新日期:2002-04-01 00:00:00
abstract::: Accurate dating of pregnancy is important to improve outcomes and is a research and public health imperative. As soon as data from the last menstrual period, the first accurate ultrasound examination, or both are obtained, the gestational age and the estimated due date should be determined, discussed with the patien...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/01.AOG.0000454932.15177.be
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:The 4-S modification of the Roeder knot may be tied laparoscopically as a single-throw knot. TECHNIQUE:It is tied by adding a fourth wrap around the suture loop and securing the loop in place with a square knot rather than a single half-hitch. EXPERIENCE:We have used this knot in laparoscopic surgeries for...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(97)00492-4
更新日期:1997-12-01 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::To evaluate the usefulness of autoantibody detection as a nonoperative method of diagnosing endometriosis, we tested 221 sera from 215 patients from the infertility, gynecology, and gynecologic oncology services by an indirect immunofluorescence assay using monolayer cultures of an endometrial carcinoma cell line. The...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::The ACOG has recommended that the initial visit to an obstetrician-gynecologist for health guidance, screening, and provision of preventive services should take place around age 13-15. At this visit, clinicians can provide guidance to young girls and their parents on adolescent physical development based on data that ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0029-7844(02)01660-5
更新日期:2002-04-01 00:00:00
abstract::Twin gestations with diamniotic monochorionic placentas have increased perinatal morbidity. We report a case in which, following the death of one member of a set of twins, absent end-diastolic flow was noted. At delivery, we noted thrombosis of placental vessels and vascular connections between the placental vessels o...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-05-01 00:00:00