Ureter Rupture From Ureterovesical Junction Obstruction in a Child.

Ureteral rupture in children with ureterovesical junction obstruction (UVJO) is rare. We report the case of a five-year-old boy diagnosed with right UVJO who was lost to follow-up for one year and later referred to our department, presenting with acute abdominal pain. An abdominal computed tomography (CT) revealed right hydronephrosis, hydroureter, and unilateral ascites.

Analysis of Genotypes and Phenotypes in Chinese Patients With Tuberous Sclerosis Complex Harboring Novel Variants of TSC1 and TSC2 Genes.

This study aimed to assess the pathogenicity of newly identified tuberous sclerosis Complex 1 (TSC1) and TSC2 variants, contributing definitive evidence for the diagnosis of TSC. A total of 103 TSC patients underwent TSC genetic testing using standardized protocols, and genetic testing was extended to their respective families. Analysis of genetic testing results considered clinical phenotype and gene pathogenicity based on the 2012 revision of the International Society of TSC.

Wandering spleen torsion with portal vein thrombosis: A case report.

Background: Wandering spleen is rare clinically. It is characterized by displacement of the spleen in the abdominal and pelvic cavities and can have congenital or acquired causes. Wandering spleen involves serious complications, such as spleen torsion.

His-Purkinje system pacing reduced tricuspid regurgitation in patients with persistent atrial fibrillation after left-sided valve surgery.

Background & Objective: Tricuspid regurgitation after left-sided valve surgery was a common and difficult problem. Atrial fibrillation was considered to be an important etiology of tricuspid regurgitation. His-Purkinje system pacing (HPSP) was a physiological pacing method, which could prevent and treat heart failure and might reduce tricuspid regurgitation.

Comparing Outcomes of Single-Incision Laparoscopic Herniorrhaphy in Newborns and Infants.

Background: As surgical techniques progress, laparoscopic herniorrhaphy is now performed more often in premature babies. The aim of this study was to analyze the outcomes of newborns and infants who underwent single-incision laparoscopic herniorrhaphy (SILH) at our center.

Methods: We retrospectively reviewed patients younger than 12 months old who received SILH at our department from 2016 to 2020.

Effect of angiotensin receptor-neprilysin inhibitor on atrial electrical instability in atrial fibrillation.

Background And Objective: Around 33.5 million patients suffered from atrial fibrillation (AF), causing complications and increasing mortality and disability rate. Upstream treatment for AF is getting more popular in clinical practice in recent years.

Splenic Torsion in Heterotaxy Syndrome with Left Isomerism: A Case Report and Literature Review.

Splenic torsion is an unusual condition that results in congenital abnormality, especially in the visceral abnormal arrangement. We report the case of an 8.5-year-old boy with features in the right upper quadrant.

Relationship between Investor Sentiment and Price Fluctuation of SSE 50ETF Options.

In this paper, we have studied the December call-options contract of SSE 50ETF options to put forward the sentiment composite index of options by means of the principal component analysis and to explore the relationship between such index and the fluctuation taking place in option prices. The empirical study has shown that the investor sentiment is correlated with option prices, and option prices prove to be more sensitive to the sentiment, whereas the impact imposed by the sentiment of option investors on option prices is more significant.

Transport Characteristics of Interfacial Charge in SiC Semiconductor-Epoxy Resin Packaging Materials.

The silicon carbide (SiC) wide bandgap (WBG) semiconductor power device has been widely applied for its excellent properties. However, the charge accumulated in the interface of SiC semiconductor-related insulation packaging may lead to serious material performance degradation and failure, threatening the reliability and operation life of power devices. In this research, interface charge accumulation characteristics of SiC-epoxy resin double-layered material were investigated, and space charge injection, transport, and accumulation mechanisms, as well as the related temperature effect for the SiC-epoxy resin under polarization and depolarization conditions, were studied by the pulsed electro-acoustic (PEA) technique.

Genetic and Clinical Features of Heterotaxy in a Prenatal Cohort.

Some genetic causes of heterotaxy have been identified in a small number of heterotaxy familial cases or animal models. However, knowledge on the genetic causes of heterotaxy in the fetal population remains scarce. Here, we aimed to investigate the clinical characteristics and genetic spectrum of a fetal cohort with heterotaxy.

Financial Crisis Warning for Listed Manufacturing Companies in China.

In this paper, we have first selected 28 indicators based on the selection principle of financial indicators adopted in relevant studies both at home and abroad from seven aspects, which include profitability, long-term and short-term solvency, company development capacity, operating capacity, cash flow generation capability, equity characteristics, and board characteristics. Subsequently, we have conducted the comparative analysis and comprehensive study on the logistic early warning model and BP neural network to provide reference for managers and stakeholders to select the optimal model. In addition, through our study on the dynamic early warning of BP neural network, we intend to convey the concept of constantly updating the model to both managers and stakeholders.

Study of Relaxations in Epoxy/Rubber Composites by Thermally Stimulated Depolarization Current and Dielectric Spectroscopy.

Liquid rubber toughened epoxy resins are widely used in electrical equipment and electronic packaging. Previous studies have only investigated the relaxation process of epoxy resins through dielectric spectroscopy. The trap characteristics of the relaxation process by thermally stimulated depolarization current (TSDC) analysis are less studied.

Experimental study: using the continuous wave Doppler spectrum technique to detect left atrial pressure.

Background: This study sought to investigate the accuracy of estimating left atrial pressure (LAP) using the continuous wave Doppler spectrum of mitral regurgitation.

Methods: Dog models of left atrial hypertension with mitral regurgitation were established with disposable biopsy forceps and the injection of melamine formaldehyde resin microsphere suspension. A total of 40 models of left atrial hypertension with different hemodynamic statuses were established by injecting either esmolol or dobutamine in which the spectrums of mitral regurgitation were clear and the regurgitation velocity exceeded 3.

A Rare Case of Prostatic Utricle with Crossover Vas Deferens in Children.

A prostatic utricle (PU) is an unusual pathology with most patients being asymptomatic. However, approximately 29% of patients may show lower urinary tract symptoms, recurrent urinary tract infections (UTI), postvoid dribbling, urethral discharge, epididymo-orchitis, stones, and secondary incontinence caused by urine trapping in the pouch and urinary retention. The standard treatment is through surgical resection, but it is only offered to patients with symptoms.

Transumbilical laparoscopy-assisted Malone procedure for fecal incontinence in children.

Background: Transumbilical laparoscopy-assisted Malone procedure (TULAM) is a single-incision laparoscopic procedure in which the appendicostomy is made at umbilicus. The aim of this study is to evaluate the outcomes of TULAM.

Methods: With IRB approval, the medical records of the patients who underwent TULAM were retrospectively reviewed between July 2013 and December 2018.

Body mass index is an independent predictor of acute kidney injury after urgent aortic arch surgery for acute DeBakey Type I aortic dissection.

Background: Aortic arch surgery and obesity are both related to the risk of acute kidney injury. Our hypothesis was that the risk of postoperative acute kidney injury increases as body mass index increases in patients undergoing urgent aortic total arch replacement surgery for acute DeBakey Type I aortic dissection.

Methods: We conducted a retrospective cohort study in Beijing Anzhen Hospital from December 2015 to April 2017.

Analysis of diverse factors influencing the health status as well as medical and health service utilization in the floating elderly of China.

Background: Based on the "China Migrants Dynamic Survey-Special investigation on Floating Elderly in 8 megacities in 2015", the health status and the utilization of medical and health services in floating elderly were described and analyzed.

Objective: Scientific basis and critical suggestions are provided for improving the utilization level of medical and health services in the floating elderly and designing targeted health policies to improve their well-being.

Methods: The rank-sum test and Pearson χ test were used to compare the health status of floating elderly with different characteristics.

Inter-rater Reliability of 4-Item Arterial Doppler Waveform Classification System for Description of Arterial Doppler Waveforms.

Non-invasive Doppler waveform (DW) analysis is a widely adopted method for detecting and evaluating lower extremity peripheral artery disease (PAD). Previous investigations have reported that broad heterogeneity in the description of Doppler waveforms is reduced by using a classification method. The reliability of arterial Doppler classification, however, is unknown.