Doppler assessment of the intervillous blood flow in normal and abnormal early pregnancy.

Abstract:

OBJECTIVE:To compare resistance index (RI) and pulsatility index (PI) in the spiral and intervillous arteries, and peak systolic velocity of the continuous intervillous flow in normal and abnormal first-trimester pregnancy. METHODS:Transvaginal color and pulsed Doppler were used in a prospective analysis of 60 normal (controls) and 54 abnormal (30 missed abortions and 24 anembryonic) pregnancies (6-12 weeks' gestation). Repeated-measures analysis of variance was used for comparison between groups. RESULTS:A gradual decrease in spiral artery RI and PI was found in women with anembryonic pregnancies. No difference in spiral artery impedance was noted in women with normal pregnancies, but there was a progressive increase in spiral artery RI and PI in women with missed abortion. A significant increase in continuous intervillous blood flow velocity was noted from the 11th week onward in the normal pregnancy group (8.0 +/- 0.9 versus 12.2 +/- 1.4 cm/second). Intervillous arterial blood flow signals did not demonstrate any difference in RI and PI with advancing gestational duration. Significantly lower PI values were obtained from the intervillous arteries in women with anembryonic pregnancy (PI 0.54 +/- 0.04) than in controls (PI 0.80 +/- 0.04) and those with missed abortions (PI 0.75 +/- 0.04). However, there was no statistically significant difference in the intervillous RI between subgroups. CONCLUSION:The new generation of sensitive Doppler units can detect intervillous flow as a continuous progressive process during the first trimester of normal and abnormal pregnancy. There is a significant difference in intervillous artery vascular impedance between normal and anembryonic pregnancies.

journal_name

Obstet Gynecol

authors

Kurjak A,Kupesic S

doi

10.1016/S0029-7844(96)00422-X

subject

Has Abstract

pub_date

1997-02-01 00:00:00

pages

252-6

issue

2

eissn

0029-7844

issn

1873-233X

pii

S0029-7844(96)00422-X

journal_volume

89

pub_type

临床试验,杂志文章
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    pub_type: 杂志文章

    doi:

    authors: Brar HS,Golde SH,Egan JE

    更新日期:1987-09-01 00:00:00

  • Response of pituitary-adrenal axis on partal stress.

    abstract::The circulating level of ACTH (by radioimmunoassay) and cortisol (by competitive protein binding) were determined at 1- to 2-hour intervals during spontaneous labor (N=8) and induced labor (N=28) and after delivery. There were no differences in ACTH levels between primiparous and multiparous women. The primiparous wom...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Tuimala RJ,Kauppila AJ,Haalahti J

    更新日期:1975-09-01 00:00:00

  • Sperm penetration assay: useful test in evaluation of male fertility.

    abstract::The recently developed sperm penetration assay (SPA) tests the functional capacity of sperm. It is based upon the ability of in vitro capacitated human spermatozoa to penetrate zona-free hamster eggs in vitro. The SPA was superior to seminal fluid analysis in predicting both fertility and infertility; in the predictio...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Karp LE,Williamson RA,Moore DE,Shy KK,Plymate SR,Smith WD

    更新日期:1981-05-01 00:00:00

  • Heterotopic pregnancy in a natural conception cycle presenting as hematometra.

    abstract:BACKGROUND:Heterotopic pregnancy is a rare event in natural conception cycles. Diagnosis of heterotopic pregnancy requires a high index of suspicion. Described herein is a reported case of a heterotopic pregnancy presenting as hematometra. CASE:A young, multiparous woman, with her last menstrual period 6 weeks before ...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1097/01.AOG.0000142698.17433.cd

    authors: Cheng PJ,Chueh HY,Qiu JT

    更新日期:2004-11-01 00:00:00

  • ACOG Committee Opinion No. 763: Ethical Considerations for the Care of Patients With Obesity.

    abstract::Obesity is a medical condition that may be associated with bias among health care professionals, and this bias may result in disrespectful or inadequate care of patients with obesity. Obstetrician-gynecologists regularly care for patients with obesity and play an integral role in advocating for best practices in healt...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章,实务指引

    doi:10.1097/AOG.0000000000003015

    authors:

    更新日期:2019-01-01 00:00:00

  • Relationship of ultrasound findings after cesarean section to operative morbidity.

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Faustin D,Minkoff H,Schaffer R,Crombleholme W,Schwarz R

    更新日期:1985-08-01 00:00:00

  • Patient Experiences With Miscarriage Management in the Emergency and Ambulatory Settings.

    abstract:OBJECTIVE:To quantitatively and qualitatively describe the patient experience for clinically stable patients presenting with miscarriage to the emergency department (ED) or ambulatory clinics. METHODS:We present a subanalysis of a mixed-methods study from 2016 on factors that influence miscarriage treatment decision-m...

    journal_title:Obstetrics and gynecology

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    authors: Miller CA,Roe AH,McAllister A,Meisel ZF,Koelper N,Schreiber CA

    更新日期:2019-12-01 00:00:00

  • Effectiveness of treatment strategies of some women with pelvic inflammatory disease: a randomized trial.

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    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

    doi:10.1097/01.AOG.0000175193.37531.6e

    authors: Ness RB,Trautmann G,Richter HE,Randall H,Peipert JF,Nelson DB,Schubeck D,McNeeley SG,Trout W,Bass DC,Soper DE

    更新日期:2005-09-01 00:00:00

  • Pregnancy associated with renal glucosuria.

    abstract::On reviewing 17,647 pregnancies over a 6-year period, 291 of 17,229 singleton pregnancies were noted to be associated with renal glucosuria. On analyzing these 291 pregnancies in 277 women, renal glucosuria was more frequently observed in those women with blood group types A and B and less in those with blood group ty...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Chen WW,Sese L,Tantakasen P,Tricomi V

    更新日期:1976-01-01 00:00:00

  • Effect of prolonged vaginal distention and sphincter transection on physiologic function of the external anal sphincter in an animal model.

    abstract:OBJECTIVE:To estimate the effect of prolonged vaginal distention and anal sphincter transection on contractile properties of the external anal sphincter. METHODS:Young female virgin rats were randomly assigned to four treatment groups (sham, vaginal distention, transection of anal sphincter plus repair, or combined di...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1097/AOG.0b013e318162f6a7

    authors: Wai CY,Miller RT,Word RA

    更新日期:2008-02-01 00:00:00

  • Routine pretreatment evaluation of patients with gynecologic cancer.

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Lindell LK,Anderson B

    更新日期:1987-02-01 00:00:00

  • Smoking and pregnancy: a comparison of Mexican-American and non-Hispanic white women.

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Camilli AE,McElroy LF,Reed KL

    更新日期:1994-12-01 00:00:00

  • Diagnosis of a supernumerary ovary with human chorionic gonadotropin.

    abstract::The preoperative diagnosis of ectopic ovarian tissue has been reported only once in the literature. In the present case, differential ovarian and adrenal testing was used to diagnose and aberrant ovarian source of persistently elevated plasma estrogen in a patient who had undergone bilateral oophorectomy and adrenalec...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Kosasa TS,Griffiths CT,Shane JM,Leventhal JM,Naftolin F

    更新日期:1976-02-01 00:00:00

  • Group A streptococcal puerperal sepsis preceded by positive surveillance cultures.

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

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    authors: Stefonek KR,Maerz LL,Nielsen MP,Besser RE,Cieslak PR

    更新日期:2001-11-01 00:00:00

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

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    authors: Sze EH,Kohli N,Miklos JR,Roat TW,Karram MM

    更新日期:1997-07-01 00:00:00

  • Diurnal and gestational patterns of uterine activity in normal human pregnancy. The Uterine Activity in Pregnancy Working Group.

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1097/00006250-199404000-00006

    authors: Moore TR,Iams JD,Creasy RK,Burau KD,Davidson AL

    更新日期:1994-04-01 00:00:00

  • Analysis of McRoberts' maneuver by x-ray pelvimetry.

    abstract:OBJECTIVE:To document radiographically the changes in pelvic dimensions created by McRoberts' maneuver. METHODS:Women at least 37 weeks' pregnant who presented to labor and delivery were eligible for study entry. Anterior-posterior and lateral x-rays were taken with women in the dorsal lithotomy position and after app...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1016/s0029-7844(99)00445-7

    authors: Gherman RB,Tramont J,Muffley P,Goodwin TM

    更新日期:2000-01-01 00:00:00

  • Antepartum pituitary infarction.

    abstract::Antepartum pituitary infarction occurs only in insulin-dependent diabetic patients. It is manifested by severe headache, followed by decreasing insulin requirements. Delivery is frequently premature, with high fetal wastage and increased maternal mortality. During the puerperium, the first manifestation of pituitary d...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Dorfman SG,Dillaplain RP,Gambrell RD Jr

    更新日期:1979-03-01 00:00:00

  • Vesicovaginal fistula formation after cervical cerclage mimicking premature rupture of membranes.

    abstract:BACKGROUND:Women with a history of pregnancy loss in the second trimester are often diagnosed with cervical insufficiency and are treated with cervical cerclage. We present an unusual complication of this procedure that mimicked preterm rupture of membranes. CASE:A 38-year-old woman with a history of cervical conizati...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1097/01.AOG.0000247291.00155.88

    authors: Wall LL,Khan F,Adams S

    更新日期:2007-02-01 00:00:00

  • Cervical papillomavirus infection and intraepithelial neoplasia: a study of male sexual partners.

    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:

    authors: Levine RU,Crum CP,Herman E,Silvers D,Ferenczy A,Richart RM

    更新日期:1984-07-01 00:00:00

  • Fetal pulmonary sequestration: a favorable congenital lung lesion.

    abstract:OBJECTIVE:We reviewed the perinatal clinical course of prenatally diagnosed pulmonary sequestrations to determine the natural history of this anomaly. METHODS:From January 1992 to August 1998, 192 women were referred to the University of California, San Francisco, Fetal Treatment Center because obstetric ultrasound ha...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1016/s0029-7844(99)00420-2

    authors: Lopoo JB,Goldstein RB,Lipshutz GS,Goldberg JD,Harrison MR,Albanese CT

    更新日期:1999-10-01 00:00:00

  • Pelvic lymphocele following radical para-aortic and pelvic lymphadenectomy for cervical carcinoma: incidence rate and percutaneous management.

    abstract::Thirty-six women, treated with radical hysterectomy (Piver types III-IV) plus systematic para-aortic and pelvic lymphadenectomy for cervical carcinoma, underwent serial postoperative ultrasound examinations to determine the incidence of lymphocele and the therapeutic efficacy of percutaneous catheter drainage. Pelvic ...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Conte M,Panici PB,Guariglia L,Scambia G,Greggi S,Mancuso S

    更新日期:1990-08-01 00:00:00

  • Effects of natural menopause, hysterectomy, and oophorectomy on lumbar spine and femoral neck bone densities.

    abstract::Lumbar spine and femoral neck bone densities of women, aged 35-65, were measured by dual photon bone densitometry. After exclusion of women with spinal and other abnormalities, this study included 233 subjects: 60 menstruant, 91 who underwent natural menopause (56 more than 2 years post-menopause), 45 bilaterally ooph...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Hreshchyshyn MM,Hopkins A,Zylstra S,Anbar M

    更新日期:1988-10-01 00:00:00

  • Umbilical artery flow velocity waveforms in monoamniotic twins with cord entanglement.

    abstract:BACKGROUND:Monoamniotic twins with ultrasonographic evidence of umbilical cord entanglement present a management challenge in the antepartum period. CASES:We report two pregnancies with monoamniotic twins and ultrasonographic evidence of cord entanglement in which longitudinal Doppler flow velocity waveforms of the um...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1016/0029-7844(95)00210-i

    authors: Abuhamad AZ,Mari G,Copel JA,Cantwell CJ,Evans AT

    更新日期:1995-10-01 00:00:00

  • Lactogenesis after early postpartum use of the contraceptive implant: a randomized controlled trial.

    abstract:OBJECTIVE:To evaluate lactogenesis after early postpartum insertion of the etonogestrel contraceptive implant. METHODS:Healthy peripartum women with healthy, term newborns who desired the etonogestrel implant for contraception were randomly assigned to early (1-3 days) or standard (4-8 weeks) postpartum insertion. The...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章,随机对照试验

    doi:10.1097/AOG.0b013e3182165ee8

    authors: Gurtcheff SE,Turok DK,Stoddard G,Murphy PA,Gibson M,Jones KP

    更新日期:2011-05-01 00:00:00

  • Lymphatic spread in stage Ib and II cervical carcinoma: anatomy and surgical implications.

    abstract:OBJECTIVE:To determine the frequency and topography of pelvic and para-aortic node involvement in cervical carcinoma and to identify the appropriate level for resection of the lymphatic chains. METHODS:Between 1985 and 1994, 421 women with stage Ib or II cervical carcinoma were treated by surgery in combination with i...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1016/s0029-7844(97)00696-0

    authors: Michel G,Morice P,Castaigne D,Leblanc M,Rey A,Duvillard P

    更新日期:1998-03-01 00:00:00

  • A comparison of the accuracy of the TDx-FLM assay, lecithin-sphingomyelin ratio, and phosphatidylglycerol in the prediction of neonatal respiratory distress syndrome.

    abstract:OBJECTIVE:To ascertain whether the TDx-FLM assay is a better predictor of neonatal respiratory distress syndrome (RDS) than the lecithin-sphingomyelin ratio (L/S) and phosphatidylglycerol (PG). METHODS:Amniotic fluid samples of 140 women requiring assessment of fetal lung maturity and delivering within 72 hours of amn...

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    pub_type: 杂志文章

    doi:

    authors: Hagen E,Link JC,Arias F

    更新日期:1993-12-01 00:00:00

  • 13CO2 isotopic laser used through the operating channel of laser laparoscopes: a comparative study of power and energy density losses.

    abstract:OBJECTIVE:To evaluate the power transmission, spot size, power density, and energy density of a new isotopic carbon dioxide (13CO2) laser compared with a conventional CO2 laser. METHODS:Experiments were performed in a laboratory using a conventional CO2 laser and an isotopic 13CO2 laser. Two laparoscopes with 5-mm and...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:

    authors: Adamson GD,Reich H,Trost D

    更新日期:1994-05-01 00:00:00

  • The prognostic value of antinuclear antibodies in women with recurrent pregnancy losses: a prospective controlled study.

    abstract::Because autoimmune diseases are suspected of causing some cases of recurrent pregnancy loss, we sought clinical and serologic evidence of such diseases in a group of 277 women with recurrent pregnancy loss. Using HEp-2 cells as targets for an indirect immunofluorescence test for antinuclear antibodies, we compared the...

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    pub_type: 杂志文章

    doi:

    authors: Harger JH,Rabin BS,Marchese SG

    更新日期:1989-03-01 00:00:00

  • Wound Complication Rates After Vulvar Excisions for Premalignant Lesions.

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    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章

    doi:10.1097/AOG.0000000000003185

    authors: Mullen MM,Merfeld EC,Palisoul ML,Massad LS,Woolfolk C,Powell MA,Mutch DG,Thaker PH,Hagemann AR,Kuroki LM

    更新日期:2019-04-01 00:00:00