Publications by authors named "Yihua He"

Article Synopsis
  • Left bundle branch area pacing (LBBAP) is a secure method for heart pacing, but past studies primarily evaluated left heart function without considering the right heart's impact, prompting this study to investigate various pacing methods on right heart metrics.
  • The study involved 90 patients with normal left ventricular function who were split into three groups: LBBAP, right ventricular septal pacing (RVSP), and right ventricular apical pacing (RVAP), examining various right heart indicators and interventricular synchrony.
  • Results showed no significant changes in the LBBAP group for several heart function metrics, whereas significant declines were noted in the RVAP group, suggesting varying impacts of different pacing locations on heart function.
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Background: Fetal arrhythmias frequently co-occur with congenital heart disease in fetuses. The peaks observed in M-mode fetal echocardiograms serve as pivotal diagnostic markers for fetal arrhythmias. However, speckles, artifacts, and noise pose notable challenges for accurate image analysis.

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  • The study aimed to assess the effectiveness of 2D-STI and RT-3DE imaging techniques in evaluating structural and functional changes in the left atrium of patients with paroxysmal atrial fibrillation after undergoing radiofrequency catheter ablation.
  • A total of 44 PAF patients and 32 healthy controls were examined, comparing echocardiographic parameters like left atrial dimensions, volumes, and ejection fractions before and at various intervals after the procedure.
  • Results showed that PAF patients had initially larger left atrial sizes and lower efficiency, but significant improvements in LA function and measurements were observed up to 6 months post-ablation, highlighting the usefulness of these imaging methods for treatment monitoring.
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Article Synopsis
  • - **Study Overview**: A national study conducted in China over 8 years examined the impact of maternal exposure to ambient ozone (O) during early pregnancy on congenital heart defects (CHD) in infants, using data from 27,817 participants across 1313 hospitals. - **Key Findings**: Results indicated that each 10 µg/m increase in ambient O exposure was linked to a 12.7% increase in the odds of CHD, with specific types of defects such as ventricular septal defect (VSD) and tetralogy of Fallot (TOF) showing significant correlations, particularly during the periconception period. - **Significance**: The research highlights a crucial relationship between higher levels of ozone exposure
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Article Synopsis
  • The study aimed to see how preoperative left atrial function relates to the return of atrial fibrillation (AF) after mitral valve surgery and Cox Maze procedure in patients with severe rheumatic mitral stenosis (MS) and AF.
  • Researchers analyzed 121 patients using echocardiography to measure left atrial stiffness and function before and after surgery, finding that 39.7% experienced AF recurrence postoperatively.
  • Results indicated that higher left atrial stiffness index (LASI) and mechanical dispersion (SD-TPS) were significant predictors of AF recurrence, suggesting these measures could be used for better risk assessment and treatment planning.
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Diatoms and bacteria play a vital role in investigating the ecological effects of heavy metals in the environment. Despite separate studies on metal interactions with diatoms and bacteria, there is a significant gap in research regarding heavy metal interactions within a diatom-bacterium system, which closely mirrors natural conditions. In this study, we aim to address this gap by examining the interaction of uranium(VI) (U(VI)) with Achnanthidium saprophilum freshwater diatoms and their natural bacterial community, primarily consisting of four successfully isolated bacterial strains (Acidovorax facilis, Agrobacterium fabrum, Brevundimonas mediterranea, and Pseudomonas peli) from the diatom culture.

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Importance: Previous evidence suggests that maternal hepatitis B virus (HBV) infection during prepregnancy or pregnancy is associated with congenital heart diseases (CHDs) in offspring. However, the association of paternal HBV infection with CHDs is not well examined.

Objective: To explore the association of paternal preconception HBV infection with CHDs in offspring.

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Objective: This study aimed to improve the accuracy of prenatal diagnosis by analyzing fetal echocardiographic features of criss-cross heart (CCH), to provide an effective basis for the development of management strategies and improve the prognosis of patients.

Methods: A retrospective analysis was performed on CCH cases diagnosed prenatally at our center between July 2016 and June 2022. Clinical data and prenatal fetal echocardiographic images were reviewed.

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Artificial intelligence (AI) has made significant progress in the medical field in the last decade. The AI-powered analysis methods of medical images and clinical records can now match the abilities of clinical physicians. Due to the challenges posed by the unique group of fetuses and the dynamic organ of the heart, research into the application of AI in the prenatal diagnosis of congenital heart disease (CHD) is particularly active.

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Purpose: To analyze the influence of RV dysfunction evaluated by Free-angle M-mode (FAM) TAPSE Z-score on retrograde ductus arteriosus flow (RDAF) in fetuses with Ebstein anomaly (EA).

Methods: A retrospective cohort study of 30 EA and 60 normal fetuses were enrolled. The EA group was divided into two groups: with RDAF (EA-RDAF group) and without RDAF (EA-NRDAF group).

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Article Synopsis
  • The study investigates the relationship between maternal exposure to ozone (O) and the risk of conotruncal heart defects (CTDs) in fetuses among pregnant women in China.
  • It found that higher exposure to ambient ozone, especially during the perinatal period, is associated with an increased risk of CTDs, with significant odds ratios indicating a clear correlation.
  • The researchers suggest that more long-term studies are necessary to further confirm these findings and understand the implications for maternal and fetal health.
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Tuberous Sclerosis Complex (TSC) is a severe developmental disorder with various clinical effects, primarily caused by TSC2 gene mutations, often involving loss of function(Henske,et al., 2016).To explore role of TSC2 in human heart development, we successfully developed a TSC2 knockout (TSC2-/-) human embryonic stem cells (hESCs) line using CRISPR/Cas9 gene editing.

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  • Blood-brain barrier damage has been linked to post-stroke brain edema, but treatments targeting this damage haven't proven effective in reducing edema clinically.
  • A study using mice and human patients showed that dysfunction in the glymphatic system (GS) is closely associated with the progression and absorption of brain edema following ischemic strokes.
  • Enhancing GS function may alleviate brain edema and improve cognitive outcomes, suggesting that targeting the GS could be a new treatment strategy for ischemic stroke-related edema.*
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  • Extreme temperature events have increased in frequency and duration over the past ten years, leading to concerns about their impact on fetal health.
  • A national study across 1313 hospitals in China investigated the relationship between extreme cold events during pregnancy and congenital heart defects, finding a significant association with certain types of heart defects.
  • The research suggests that 2.21% to 2.40% of fetal congenital heart defect cases could be linked to these cold events, highlighting the importance of monitoring pregnant women during colder seasons to mitigate risks to newborns.
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Background: There is no relevant study on landmarks detection, one of the Convolutional Neural Network algorithms, in the field of fetal echocardiography (FE). This study aimed to explore whether automatic landmarks detection could be used in FE correctly and whether the atrial length (AL) to ventricular length (VL) ratio (AVLR) could be used to diagnose atrioventricular septal defect (AVSD) prenatally.

Methods: This was an observational study.

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Inflammation is a crucial pathophysiological mechanism in atherosclerosis (AS). This study aims to investigate the impact of sulfotransferase family 2b member 1 (SULT2B1) on the inflammatory response of macrophages and the progression of AS. Here, we reported that SULT2B1 expression increased with the progression of AS.

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The accurate acquisition of multiview fetal cardiac ultrasound images is very important for the diagnosis of fetal congenital heart disease (FCHD). However, these manual clinical procedures have drawbacks, e.g.

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Background: Evidence remains limited on the association between maternal ozone (O) exposure and congenital heart defects (CHDs) in offspring, and few studies have investigated the interaction and modification of paternal smoking on this association.

Methods: Using a sample including pregnant women at high risk of fetal CHD (with metabolic disease, first-trimester viral infection, family history of CHD, etc.) from a maternal-fetal medicine study covering 1313 referral hospitals in China during 2013-2021, we examined the associations between maternal O exposure during 3-8 weeks of gestational age and fetal CHD in offspring and investigated the interaction and modification of paternal smoking on this association.

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