Doppler Finding, Cardiovascular Function Assessment, and Fetuses' Survival Following the Fetoscopic Laser in Twin-to-Twin Transfusion Syndrome.

This study aimed to evaluate the effectiveness of selective laser photocoagulation of communicating vessels (SLPCV) on cardiac function in twins with twin-to-twin transfusion syndrome (TTTS). This retrospective cohort study evaluated 178 women with twin pregnancies complicated with TTTS and scheduled for SLPCV between 16 and 26 weeks of gestation. The severity of TTTS was determined by Quintero staging and the severity of cardiovascular disorders by the CHOP (Children's Hospital of Philadelphia) score.

Extreme βHCG levels in first trimester screening are risk factors for adverse maternal and fetal outcomes.

Multiples of the normal median (MoM) of free βHCG is a valuable parameter in evaluation of risk of adverse pregnancy outcomes. In the current retrospective study, we assessed the maternal and fetal outcomes in pregnant women having free βHCG MoM levels < 0.2 or > 5 in their first trimester screening (FTS).

The association between fetal renal artery indices in late pregnancy and birth weight in gestational diabetes mellitus: A cohort study.

Background: Estimation of the fetal birth weight and diagnosis of small for gestational age in the fetuses of women with gestational diabetes mellitus (GDM) are currently imprecise.

Objective: We aimed to evaluate the association between fetal renal artery Doppler indices and neonatal birth weight in women with GDM in late pregnancy.

Materials And Methods: This cohort study recruited 246 pregnant women from Shariati Hospital in Tehran, Iran, in two GDM and healthy control groups.

Angle of progression measured using transperineal ultrasound for prediction of uncomplicated operative vaginal delivery: systematic review and meta-analysis.

Objective: To determine whether intrapartum transperineal ultrasound measurement of the angle of progression (AoP) during the second stage of labor can predict uncomplicated operative vaginal delivery (OVD) using vacuum or forceps extraction.

Methods: A systematic search in PubMed, EMBASE, Scopus, Web of Science and Google Scholar was performed from inception to February 2021. Studies assessing the predictive accuracy of AoP, measured using intrapartum transperineal ultrasound, for uncomplicated OVD, defined as successful vaginal delivery within three pulls using forceps or no more than two detachments of the vacuum extractor cup, were included.

The correlation between the cerebroplacental ratio and fetal arterial blood gas in appropriate-for-gestational-age fetuses: A cross-sectional study.

Background: The cerebroplacental ratio (CPR) is an important index for predicting adverse pregnancy outcomes in small-for-gestational-age and appropriate-for-gestational-age fetuses.

Objective: To find out whether there is an association between the CPR level and the blood cord gases analysis in appropriate for gestational age fetuses.

Materials And Methods: This cross-sectional study included 347 pregnant women at the gestational age of 37-40 wk.

Intrapartum ultrasound measurement of angle of progression at the onset of the second stage of labor for prediction of spontaneous vaginal delivery in term singleton pregnancies: a systematic review and meta-analysis.

Objective: This study aimed to investigate the diagnostic performance of transperineal ultrasound-measured angles of progression at the onset of the second stage of labor for the prediction of spontaneous vaginal delivery in singleton term pregnancies with cephalic presentation.

Data Sources: We performed a predefined systematic search in PubMed, Embase, Scopus, Web of Science, and Google Scholar from inception to February 5, 2021.

Study Eligibility Criteria: Prospective cohort studies that evaluated the diagnostic performance of transperineal ultrasound-measured angles of progression (index test) at the onset of the second stage of labor (ie, when complete cervical dilation is diagnosed) for the prediction of spontaneous vaginal delivery (reference standard) were eligible for inclusion.

Development of a scoring system for prediction of placenta accreta and determine the accuracy of its results.

Optimal management of women with placenta accreta requires accurate preoperative diagnosis. Therefore, this study was conducted with the aim to evaluate a new prediction scoring items for risk assessment on placenta accreta and determine its accuracy ratio. This prospective cohort study was carried out on 159 suspected pregnant women morbidly adherent placenta (MAP) in Shariati, Imam Khomeini, and Yas Hospitals in Tehran from October 2016 to May 2018.

Cervical gland area as an ultrasound marker for prediction of preterm delivery: A cohort study.

Background: Preterm labor is a major cause of perinatal morbidity and mortality and it might be predicted by assessing the cervical change.

Objective: To assess the association between absence of cervical gland area (CGA) and spontaneous preterm labor (SPTL).

Materials And Methods: This prospective cohort study was performed on 200 singleton pregnant women with a history of SPTL, second-trimester abortion in the previous pregnancy or lower abdominal pain in current pregnancy.

Adverse perinatal outcomes in borderline amniotic fluid index.

Background: Normal amniotic fluid predicts normal placental function, fetal growth and fetal well-being.

Objective: To determine adverse pregnancy outcomes in borderline amniotic fluid index (AFI).

Materials And Methods: Pregnant women (37-40 wks) with diagnosis of borderline AFI between December 2012 and August 2014 were identified.

Role of 'angle of progression' in prediction of delivery mode.

Aim: The aim of this study was to investigate the role of the 'angle of progression' (AOP) in the prediction of vaginal delivery.

Material And Methods: In this prospective study, we followed 70 singleton pregnant women. AOP was measured at admission time and also at the beginning of the second stage immediately after digital examination.

Prolonged second stage of labor and levator ani muscle injuries.

Objective: To determine the effect of pregnancy and vaginal delivery on the pelvic floor and levatorani morphology and function.

Methods: Design. Cross-sectional study.

Effect of different maternal metabolic characteristics on fetal growth in women with gestational diabetes mellitus.

Background: Fetal growth in diabetic pregnancies is a complex process and probably abnormalities in other metabolic pathways such as protein and lipid, as well as carbohydrate are responsible for delivering of macrosomic newborn.

Objective: The purpose of this study was to investigate the association between fetal growth and different maternal metabolic parameters in women with gestational diabetes mellitus (GDM) in comparison to control group.

Materials And Methods: This was a prospective cohort study conducted between March 2011 and May 2012, on 112 pregnant women with GDM and 159 healthy pregnant women.

Association between fetal overgrowth and metabolic parameters in cord blood of newborns of women with GDM.

Aim: There is evidence that arthrosclerosis may originate at birth, so assessment of serum lipid levels in cord blood might be important. The aim of this study was to investigate the association between fetal overgrowth and metabolic parameters in cord blood of newborns of women with gestational diabetes mellitus (GDM) and to compare these parameters with those in newborns of non-diabetic.

Methods: The study group included 112 women (singleton pregnancy, and GDM diagnosed following WHO criteria), and as controlled subjects, 159 matched healthy pregnant women and their newborn babies were selected.

Multicenter screening for adverse pregnancy outcomes by uterine artery Doppler in the second and third trimester of pregnancy.

Aims: Increased uterine artery pulsatility index (PI) is associated with adverse pregnancy outcomes. The aim of the study was to determine the role of uterine artery PI at 18-24 and 30-34 weeks, gestation in predicting adverse pregnancy outcomes.

Material And Methods: Color Doppler assessment of the uterine arteries was carried out in 435 consecutive women attending an antenatal clinic at 18-24 weeks and in 134 women at 30-34 weeks.

The role of Doppler indices in predicting intra ventricular hemorrhage and perinatal mortality in fetal growth restriction.

Objectives: The aim of this study is to determine whether Doppler indices predict intra-ventricular hemorrhage and perinatal mortality in fetal growth restricted pregnancies (FGR).

Material And Methods: In this cohort study, 43 FGR fetuses underwent multi-vessel Doppler ultrasounds weekly or twice weekly after admission. Blood gases of the umbilical cord were analyzed immediately after delivery.

Transversus abdominis plane block reduces postoperative pain intensity and analgesic consumption in elective cesarean delivery under general anesthesia.

Purpose: It is reported that following abdominal surgery, transversus abdominis plane (TAP) block can reduce postoperative pain. The primary outcome of this study was the evaluation of the efficacy of TAP block on pain intensity following cesarean delivery with Pfannenstiel incision.

Methods: Fifty pregnant women were randomized blindly to receive either a TAP block with 15 ml 0.

First-trimester screening for chromosomal abnormalities by integrated application of nuchal translucency, nasal bone, tricuspid regurgitation and ductus venosus flow combined with maternal serum free β-hCG and PAPP-A: a 5-year prospective study.

Objective: To investigate the performance of first-trimester screening for chromosomal abnormalities by integrated application of nuchal translucency thickness (NT), nasal bone (NB), tricuspid regurgitation (TR) and ductus venosus (DV) flow combined with maternal serum free β-human chorionic gonadotropin (fβ-hCG) and pregnancy-associated plasma protein-A (PAPP-A) at a one-stop clinic for assessment of risk (OSCAR).

Methods: In total, 13,706 fetuses in 13,437 pregnancies were screened for chromosomal abnormalities during a period of 5 years. Maternal serum biochemical markers and maternal age were evaluated in combination with NT, NT + NB, NT + NB + TR, and NT + NB + TR + DV flow data in 8581, 242, 236 and 4647 fetuses, respectively.

Second trimester biparietal diameter size and the risk of adverse pregnancy outcomes.

Objective: To identify the relationship between biparietal diameter (BPD) in the second trimester and adverse pregnancy outcomes in low-risk pregnancies.

Method: This prospective cohort study was performed on 2219 singleton pregnant women from August 2008 to March 2010. The gestational age-specific percentiles of BPD at 17 to 24 weeks of gestation were established to categorize participants into three groups: a BPD < 10th percentile as small BPD, between 10th and 90th percentile as normal BPD and > 90th percentile as large BPD.

Random urine protein creatinine ratio as a preadmission test in hypertensive pregnancies with urinary protein creatinine ratio.

Unlabelled: To evaluate the value of random urinary protein creatinine ratio in prediction of 24h proteinuria in hypertensive pregnancies.

Method: Random urine samples and routine 24h urine collections were collected from hypertensive pregnant women (n=100). Reliability of random urinary protein-creatinine ratio was assessed by receiver operator characteristic (ROC) curve to detect significant proteinuria (≥300mg/day) using 24h.

Increased intravenous fluid intake and the course of labor in nulliparous women.

Objective: To compare the effect of 2 regimens of intravenous fluid therapy on the course of labor.

Methods: In a prospective, randomized, double-blind study of 300 nulliparous pregnant women at term conducted at a teaching hospital, 153 women received 125 mL and 147 received 250 mL of intravenous fluid per hour. The groups were matched and analysis was done using the t, chi(2), and Fisher exact tests.

Thyroid hormone alteration in pre-eclamptic women.

This study sought a possible relationship between pre-eclampsia and thyroid profile. In a case-control setting, total thyroxine (T4), total tri-iodothyronine (T3), free T4, free T3, thyroxine binding globulin (TBG) and thyrotropin (TSH) levels in 39 pre-eclamptic patients were measured and compared with the levels in 42 healthy controls. We examined possible variations with regard to the severity of pre-eclampsia by dividing cases into mild (n = 17) and severe (n = 22) subgroups.