Abstract:
INTRODUCTION:Massive hemorrhage due to placenta previa with placenta accreta spectrum is associated with high maternal mortality and morbidity. Therefore, accurate prediction of placenta previa with placenta accreta spectrum is essential; magnetic resonance imaging (MRI) is a useful tool for this purpose. This study investigated novel predictors of anterior and posterior placenta previa with placenta accreta spectrum using MRI. MATERIAL AND METHODS:This was a retrospective study at a tertiary obstetrics hospital in Japan. The singleton patients with placenta previa who were scanned with MRI prenatally and had a cesarean section at our institution between 2007 and 2018 were included. The prediction of anterior and posterior placenta previa with placenta accreta spectrum was evaluated using four MRI findings: heterogeneous signals in the placenta, dark T2-weighted intraplacental bands, myometrial thinning or interruption, and focal uterine bulging. The prediction of posterior placenta previa with placenta accreta spectrum was performed using the quantification of cervical varicosities, which were defined as the ratio of the distance between the minimum distance from the most dorsal cervical varicosities (a) to the deciduous and amniotic placenta (b) on a sagittal image. RESULTS:Among 202 patients, 14 (6.9%) patients were pathologically diagnosed as having placenta accreta spectrum. Further, 38 (18.8%) patients had anterior placenta previa and 164 (81.2%) patients had posterior placenta previa. When anterior placenta previa with placenta accreta spectrum was predicted using at least one of the four MRI findings, the sensitivity and specificity of the anterior placenta previa with placenta accreta spectrum were 87.5% and 86.7%, respectively. In contrast, the sensitivity and specificity of posterior placenta previa with placenta accreta spectrum were 42.9% and 96.2%, respectively. But when the A/B ratio was set at 0.20, the sensitivity and specificity of the prediction for posterior placenta previa with placenta accreta spectrum using cervical varicosities were 100.0% and 89.2%, respectively. CONCLUSIONS:The findings of MRI to predict the anterior placenta previa with placenta accreta spectrum were different from posterior placenta previa. The cervical varicosities may be useful in predicting posterior placenta previa with placenta accreta spectrum.
journal_name
Acta Obstet Gynecol Scandjournal_title
Acta obstetricia et gynecologica Scandinavicaauthors
Ishibashi H,Miyamoto M,Shinmoto H,Soga S,Matsuura H,Kakimoto S,Iwahashi H,Sakamoto T,Hada T,Suzuki R,Takano Mdoi
10.1111/aogs.13937subject
Has Abstractpub_date
2020-12-01 00:00:00pages
1657-1665issue
12eissn
0001-6349issn
1600-0412journal_volume
99pub_type
杂志文章abstract::Pulmonary hypertension is defined as pulmonary artery pressure greater than 30/15 mmHg. The etiologies of pulmonary hypertension can be divided into primary and secondary ones. The causes of the latter include long-lasting left-to-right shunts (congenital cardiac defects e.g. ventricular septal defect), pulmonary thro...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349409072516
更新日期:1994-11-01 00:00:00
abstract:OBJECTIVE:To study stillbirths and neonatal mortality in the postterm period. DESIGN:Register study of information obtained from the Swedish Medical Birth Registry (MBR), National Board of Health and Welfare, Stockholm. METHODS:Singleton pregnancies with deliveries occurring between 1982 and 1991 were selected involv...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016349709024606
更新日期:1997-08-01 00:00:00
abstract:OBJECTIVE:To assess the contribution of non-medical factors to actual mode of delivery in a setting with high cesarean rates. DESIGN:Follow-up survey. SETTING:University department of obstetrics and gynecology. SAMPLE:Women with singleton pregnancies (n = 453) where there was no awareness of medical contradictions t...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12466
更新日期:2014-10-01 00:00:00
abstract::Advances in preoperative diagnostic as well as surgical techniques for the treatment of endometriosis, especially deep endometriosis call for a classification system that includes all aspects of the disease such as peritoneal, ovarian endometriosis and deep endometriosis and secondary adhesions. The widely accepted r-...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.14099
更新日期:2021-01-23 00:00:00
abstract:BACKGROUND:Anemia in pregnancy contributes to poor outcome for mother and child in low-income countries. This study analyzes adverse maternal and fetal outcome after severe anemia in pregnancy in rural Ghana. METHODS:A cohort study in two (sub)district hospitals, including 157 pregnant women exposed to severe anemia (...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340500334794
更新日期:2006-01-01 00:00:00
abstract::Oxytocin concentrations increased during pregnancy and during medication with low-dose oral contraceptives (o.c.). Postprandial somatostatin concentrations were lower during medication with o.c. Insulin concentrations were elevated during pregnancy with the same tendency during medication with o.c. Gastrin levels were...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349109007873
更新日期:1991-01-01 00:00:00
abstract::In this paper we present a patient with an initially questionable history of neonatal alloimmune thrombocytopenia (NAT) due to materno-fetal HPA-1a (PLA1) incompatibility. No circulating antibodies were detectable in untreated maternal serum, but an adsorption/elution technique enabled the demonstration of the platele...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349309058169
更新日期:1993-10-01 00:00:00
abstract::A rare case of hepatocellular carcinoma in a 31-year-old woman is reported. The diagnosis was made at 16 weeks of pregnancy when very high levels of alpha-feto-protein were found upon routine examination. The pregnancy was terminated and cytostatic therapy was given. The patient died one year later. ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349109006217
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the cost-effectiveness of a novel intrauterine system, levonorgestrel intrauterine system 13.5 mg vs. oral contraception, in women at risk of unintended pregnancy. DESIGN:Cost-effectiveness model using efficacy and discontinuation data from published articles. SETTING:Societal perspective includ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12679
更新日期:2015-08-01 00:00:00
abstract:BACKGROUND:The purpose of the study was to evaluate outcome, urodynamic correlates and adverse effects of laparoscopic colposuspension using polytetrafluoroethylene sutures. METHODS:Eighty-five consecutive women with primary stress urinary incontinence at one university hospital were included in this prospective non-c...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract:OBJECTIVE:To compare in controlled cardiovascular autonomic function tests the effects of hormone therapy (HT) on heart rate variability (HRV) responses in postmenopausal women with and without pretreatment hot flushes. DESIGN:A randomized placebo-controlled trial. SETTING:Finland, Helsinki University Central Hospita...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aogs.12164
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND:Our aim was to estimate the prevalence of stress urinary incontinence 4 years after the first delivery and analyze its risk factors. METHODS:A retrospective cohort survey was conducted in a French university hospital. The 669 primiparous women who delivered in our department in 1996 a singleton in a vertex ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2004.00457.x
更新日期:2004-10-01 00:00:00
abstract::We compared urodynamic findings and results of lateral urethrocystography in 84 case. The aim of the study was to establish a possible correlation between anatomic findings and functional results. Clinically, a significantly greater increase in the normal axis of urethral inclination was noted in patients with a urody...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349109006214
更新日期:1991-01-01 00:00:00
abstract::We generated five murine monoclonal antibodies reactive with ovarian cancer-associated antigen CA125. These monoclonal antibodies seemed to bind to separate epitopes from OC125 antibody, known to recognize CA125. A series of immunoradiometric assays for measuring serum CA125 values rapidly and sensitively were devised...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349009006164
更新日期:1990-01-01 00:00:00
abstract::A model of prospective counselling and intervention after prenatal diagnosis of fetal malformation is presented. 13 patients/couples with severe malformations were fully counselled, 3 patients/couples interviewed post-termination. Objectives of the counselling strategy were to support patient autonomy, facilitate mour...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348909028667
更新日期:1989-01-01 00:00:00
abstract::Cases of coexisting ovarian hyperstimulation and ectopic pregnancy are rare, and pose a difficult diagnostic problem. The routine attempts at laparoscopic diagnosis and treatment of these pregnancies may prove to be hazardous. Such cases may be better managed nonsurgically either by methotrexate or, in selected cases,...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349509009951
更新日期:1995-01-01 00:00:00
abstract::Five ovaries from four postmenopausal women undergoing bilateral oophorectomy for benign conditions were prepared for vascular perfusion for 1 to 5 hours in a recirculating system containing oxygenized (5% CO2 + 95% O2) synthethic bicarbonate buffered medium (Medium 199 + 4% bovine serum albumin + antibiotics). Two hi...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349009013331
更新日期:1990-01-01 00:00:00
abstract::Studies on the natural history of endometriosis have demonstrated that the majority of endometriosis implants tend to progress, a finding that indicates eradication of the lesions by medical and/or surgical approaches. Infertility and dysmenorrhea are other indications for medical therapy in this disease. In recent pr...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016349309021107
更新日期:1993-07-01 00:00:00
abstract::Laparoscopic sterilization with a bipolar electrode was performed in 62 patients. The sterilization failed in one patient and was questionable in another. The effectiveness was assessed by hysterosalpingography (HSG) in 51 patients. No complications due to laparoscopy occurred. The method is considered to be advantage...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016347809155898
更新日期:1978-01-01 00:00:00
abstract::Vitamin B-6 100 mg given daily throughout the menstrual cycle was compared with placebo in a randomized, double-blind crossover trial in 34 women who suffered from premenstrual tension. Vitamin B-6 was no better than placebo. There was a substantial period effect, as the women evidenced a considerable preference for t...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016348509158211
更新日期:1985-01-01 00:00:00
abstract::There is now sufficient evidence to support the feasibility and efficacy of ovarian tissue (OT) cryopreservation and transplantation for both fertility preservation and restoration purposes. However, there are still issues to address regarding the grafting procedure itself, since transplanted tissue suffers massive fo...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/aogs.13610
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:To determine the predictive value of macrosomia for overweight later in adult life in infants of diabetic mothers. DESIGN:Data from the computerized records of the Jerusalem Perinatal Study were matched to measurements made at age 17 obtained from the military draft medical examination records. PARTICIPANTS...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1600-0412.1998.770113.x
更新日期:1998-01-01 00:00:00
abstract::A 54-year-old postmenopausal woman is described who quite suddenly experienced intense tenderness and tension in both breasts lasting for about 3 weeks. Subsequently she had a uterine bleeding. Excessively increased levels of estradiol (peak value 2325 pmol/l) were found during the period of mastodynia. Seven months p...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348509156738
更新日期:1985-01-01 00:00:00
abstract::Complications and satisfaction with anterior and/or posterior prolapse repair using a transobturator polypropylene mesh (Prolift) in a single center prospective cohort was assessed. Among 30 women six mesh erosions were noted, five (17%) after anterior and one (3%) with combined anterior and posterior procedures. The ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340802348294
更新日期:2008-01-01 00:00:00
abstract::The long-term consequences and complications of tubal sterilization were studied. Six years after surgery, information was obtained from 208 of 216 women. Five had been pregnant. Eight had been bothered by their scars for 2 years or more. The majority reported improved conjugal relations and a positive impact on marri...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348409156708
更新日期:1984-01-01 00:00:00
abstract:OBJECTIVE:To study local treatment of ectopic pregnancy by injection of hyperosmolar (50%) glucose, guided either by transvaginal ultrasound or by laparoscopy. METHODS:Eighty women were randomized, 39 into the sonography and 41 into the laparoscopy group. Criteria for inclusion were 1) ectopic pregnancy < or = 4 cm se...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016349509013476
更新日期:1995-09-01 00:00:00
abstract::The effect of physical exercise on beta-endorphin (beta-E) concentration in plasma was studied in 8 non-pregnant and in 8 pregnant women in their last trimester of pregnancy, using a 10-min bicycle ergometer test. In the non-pregnant women the mean beta-E levels were 2.4 +/- 0.7 (S.E.) pmol/l before the test, 4.3 +/- ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348609158397
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To explore the role of utilization of prenatal care on the risk for stillbirth among women with migration background in Germany by comparing stillbirth rates of women from different origins characterized by adequate and inadequate utilization of prenatal care to German women with adequate utilization of care....
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016340903295584
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Preterm infants are at 8 times higher risk than term infants for pre- and perinatal brain damage, resulting in cerebral palsy. In this paper we have analysed the influence of prenatal and birth-related risk factors on cerebral palsy in preterm infants. METHODS:In a register-based study, 175 preterm singleto...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016349709024363
更新日期:1997-10-01 00:00:00
abstract:OBJECTIVE: To determine the influence of type 1 diabetes mellitus (T1DM) on the first trimester serum markers of fetal aneuploidy; pregnancy-associated plasma protein-A (PAPP-A) and free beta subunit of human chorionic gonadotropin (free β-hCG) and to evaluate the influence of glycemic control on these parameters in th...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2011.01212.x
更新日期:2012-01-01 00:00:00