Risk of intraoperative hemorrhage during cesarean scar ectopic pregnancy surgery: development and validation of an interpretable machine learning prediction model.

Background: Current models for predicting intraoperative hemorrhage in cesarean scar ectopic pregnancy (CSEP) are constrained by known risk factors and conventional statistical methods. Our objective is to develop an interpretable prediction model using machine learning (ML) techniques to assess the risk of intraoperative hemorrhage during CSEP in women, followed by external validation and clinical application.

Methods: This multicenter retrospective study utilized electronic medical record (EMR) data from four tertiary medical institutions.

Evaluating T1-weighted MRI techniques for fetal gastrointestinal diagnostics: A comparative study.

Purpose: In clinical practice, fetal gastrointestinal magnetic resonance imaging (MRI) encounters significant challenges. T1-weighted images are particularly susceptible to the effects of fetal and maternal movements compared to other weighted images, complicating the acquisition of satisfactory results. This study aimed to compare three fast 3D-T1 weighted gradient echo (GRE) sequences-free-breathing stack-of-stars VIBE (STAR-VIBE), breath-hold VIBE (BH-VIBE), and free-breathing multi-average VIBE (MA-VIBE)-for fetal gastrointestinal MRI in fetuses with both normal and abnormal gastrointestinal tracts between 21 and 36 weeks of gestation.

Increased risk of fetal left-right asymmetry disorders associated with maternal SARS-CoV-2 infection during the first trimester.

Our center has observed a substantial increase in the detection rate of fetal left-right(LR) asymmetry disorders between March and May 2023. This finding has raised concerns because these pregnant women experienced the peak outbreak of SARS-CoV-2 in China during their first trimester. To explore the relationship between maternal SARS-CoV-2 infection and fetal LR asymmetry disorders.

High-frequency ultrasound imaging to assess fetal pancreas: a promising application.

The purpose of this study is to establish a comprehensive reference range of quantitative characteristics of the fetal pancreas using a high-frequency transducer, and assess the growth and development of the fetal pancreas. Pregnant women referred to a tertiary center were recruited to undergo a detailed fetal scan from 16 to 37 weeks. We evaluated the visualization rate of the fetal pancreas with high-frequency and low-frequency transducers and measured the head, neck, body, tail, circumference, area, and abdominal circumference(AC) of the fetal pancreas at different gestational ages(GA) with the high-frequency transducer.

Application of elastography to diagnose adenomyosis and evaluate the degree of dysmenorrhea: a prospective observational study.

Background: To determine whether there is a correlation between stiffness measured by strain elastography and the severity of dysmenorrhea and to determine the value of elastography in evaluating severe dysmenorrhea in patients with adenomyosis.

Methods: The correlation between tissue stiffness and dysmenorrhea was analyzed by performing elastography on premenopausal women diagnosed with adenomyosis. Expression levels of transforming growth factor-β (TGF-β), α-smooth muscle actin (α-SMA), and protein gene product 9.

Cesarean Scar Ectopic Pregnancy Clinical Classification System With Recommended Surgical Strategy.

Objective: To establish a new cesarean scar ectopic pregnancy clinical classification system with recommended individual surgical strategy and to evaluate its clinical efficacy in treatment of cesarean scar ectopic pregnancy.

Methods: This retrospective cohort study included patients with cesarean scar ectopic pregnancy in Qilu Hospital in Shandong, China. From 2008 to 2015, patients with cesarean scar ectopic pregnancy were included to determine risk factors for intraoperative hemorrhage during cesarean scar ectopic pregnancy treatment.

Prenatal ultrasonographic features and follow-up outcomes of 19 cases of congenital intrahepatic portosystemic venous shunts diagnosed during the foetal period.

Background: To investigate the prenatal ultrasonographic features and case characteristics of the congenital intrahepatic portosystemic venous shunt (IHPSS) diagnosed during the foetal period and analyse its prognosis.

Methods: We conducted a retrospective cohort study of patients diagnosed with IHPSS between 2016 and 2021. IHPSS was defined as an abnormal connection between the foetal intrahepatic portal and the hepatic veins.

Role of Abdominal Aortic Balloon Placement in Planned Conservative Management of Placenta Previa With Placenta Increta or Percreta.

We investigated the role of balloon placement in the abdominal aorta (BPAA) in planned conservative management of placenta previa with placenta increta or percreta and the effects of BPAA on perinatal adverse maternal events. This retrospective case-control study included women with placenta previa (increta or percreta), who underwent pregnancy termination at the Qilu Hospital of Shandong University between January 2016 and June 2019. Patients were categorized into the BPAA and non-BPAA groups based on the BPAA placement before delivery.

Ultrasonographic characteristics and outcome of Type III umbilical-portal-systemic venous shunt.

Aims: According to a novel in-utero classification termed "umbilical-portal-systemic venous shunt (UPSVS)" recently proposed for an abnormal umbilical, portal and ductal venous system, the portal-systemic shunt belongs to type III UPSVS. This study was designed to examine the ultrasonographic characteristics and outcome of type III UPSVS.Material and methods: All cases of Type III UPSVS diagnosed at our department from April 2016 to December 2020 were retrospectively studied.

Are fetal gender and gestational age related to the size of cisterna magna?

Objectives: The purpose of this article was to explore whether the gestational age(GA)and gender could affect the size of the cisterna magna (CM).

Methods: This study that included pregnant women who were between 20 ∼ 39. The recorded included BPD, HC, anteroposterior diameter of CM and gender.

Prenatal Ultrasound Analysis of Umbilical-Portal-Systemic Venous Shunts Concurrent With Trisomy 21.

Objectives: A classification termed umbilical-portal-systemic venous shunt (UPSVS) for an abnormal umbilical vein (UV), portal vein (PV), and ductus venosus (DV) was proposed recently. According to this classification, there are 3 types of UPSVSs: types I, II, and III. Trisomy 21 associated with UV-PV-DV anomalies has been described, but the incidence of trisomy 21 in UPSVS cases, the relationship between UPSVS types and trisomy 21, and the pregnancy outcome are poorly documented.

Prenatal sonographic characteristics and postnatal outcomes of umbilical-portal-systemic venous shunts under the new in-utero classification: A retrospective study.

An in-utero re-classification of umbilical-portal-systemic venous shunt (UPSVS) has recently been proposed. We retrospectively reviewed the sonograms of a large cohort of fetuses, identified and analyzed UPSVS cases, and presented the prenatal sonographic characteristics, birth outcomes, and follow-up results following the new classification system.Sonograms and clinical data of all participants who visited our departments from April 2016 to July 2018 were retrospectively reviewed.

Effect of head circumference in combination with facial profile line on ultrasonic diagnosis of microcephaly.

Recently, microcephaly has usually been misdiagnosed only by ultrasound measurement of head circumference (HC). Therefore, the aim of this study is to find another diagnostic index to supplement the original diagnostic method of microcephaly, to improve the detection rate of fetal microcephaly and to reduce the misdiagnosis rate. We retrospectively analyzed 123 pregnant women from February 2012 to January 2017 with fetal HC less than two standard deviations (SD).

Comparison of traditional 2D and 3D Omniview technique in detection of fetus corpus callosum.

Aim: To explore the value of Omniview (OV) technology in assessing the fetus corpus callosum.

Material And Methods: For the ultrasound examination of 189 fetuses (gestational week range 19-28 weeks), two-dimensional (2D) ultrasound imaging and Omniview technology were used by two physicians (A and B). The acquisition time and the quality of images were recorded.

Delayed presentation of uterine perforation with ovary migration after dilatation and curettage.

We present a rare but serious uterine perforation. A 31-year-old woman was referred to our department for hyperechogenic mass in uterus on ultrasonography after Dilation and curettage (D&C) for the adherent placenta and retained products of conception. Transvaginal ultrasound examination showed that a mass with several follicles measuring 35×29 mm was seen emanating from the right posterior wall of the uterine cavity, and there was absence of the myometrial tissue.

Embolization of uterine arteriovenous malformation.

Background: Uterine arteriovenous malformation is a rare but potential life-threatening source of bleeding. A high index of suspicion and accurate diagnosis of the condition in a timely manor are essential because instrumentation that is often used for other sources of uterine bleeding can be lead to massive hemorrhage.

Case: We describe here a case of uterine arteriovenous malformation.

Sonographic appearance of the cavum septum pellucidum et vergae in normal fetuses in the second and third trimesters of pregnancy.

Background: To characterize the cavum septum pellucidum et vergae (CSPV) in normal fetuses in the second to third trimester.

Methods: The cavum septum pellucidum (CSP) and CSPV were investigated in 322 uncomplicated singleton pregnancies from 25 to 39 weeks' gestation. Visualization rate, width, and morphology of both CSP and cavum vergae (CV) were assessed by ultrasound and MRI.

Different protein profile in amniotic fluid with nervous system malformations by surface-enhanced laser desorption-ionization/time-of-flight mass spectrometry (SELDI-TOF-MS) technology.

Aim: To detect the distinct proteins in amniotic fluid (AF) between nervous system malformations fetuses and normal fetuses.

Material And Methods: Surface-enhanced laser desorption-ionization/time-of-flight mass spectrometry was used to characterize AF peptides in AF between nervous system malformations fetuses and normal fetuses. WCX2 protein chips were used to characterize AF peptides in AF.

Ultrasound score: a new method to differentiate fetal physiological and pathological hydronephrosis.

Objective: To determine whether the prenatal ultrasound (US) score can effectively differentiate fetal physiological and pathological hydronephrosis.

Study Design: 158 fetuses (198 kidneys) with hydronephrosis (PAPD>or=10mm) were diagnosed by prenatal US in the third trimester. We measured and recorded three US parameters: renal pelvic anterior posterior diameter (PAPD), renal parenchyma thickness and pelvicaliceal morphology.