Publications by authors named "Xiao-han Fan"

Gastric cancer is a leading cause of cancer-related deaths in China. Affecting more than 40% of the world's population, Helicobacter pylori is a major risk factor for gastric cancer. While previous clinical trials indicated that eradication of H.

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Effective screening and early detection are critical to improve the prognosis of gastric cancer (GC). Our study aims to explore noninvasive multianalytical biomarkers and construct integrative models for preliminary risk assessment and GC detection. Whole genomewide methylation marker discovery was conducted with CpG tandems target amplification (CTTA) in cfDNA from large asymptomatic screening participants in a high-risk area of GC.

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Article Synopsis
  • The study aimed to assess how changes in physical activity (PA) after implantable heart devices affect long-term health outcomes, focusing on mortality rates.
  • Analyzing data from 705 patients, it found that 63.3% experienced improved PA within a year, which correlated with notably lower risks of cardiac death and overall mortality.
  • The findings suggest that enhancing physical activity, even minimally, may lead to better health outcomes after implantable cardioverter-defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) procedures, especially for patients with varying initial PA levels.
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BACKGROUND : The effectiveness of endoscopic screening on gastric cancer has not been widely investigated in China and the screening interval of repeated screening has not been determined. METHODS : In a population-based prospective study, we included 375,800 individuals, 14,670 of whom underwent endoscopic screening (2012-2018). We assessed the associations between endoscopic screening and risk of incident gastric cancer and gastric cancer-specific mortality, and examined changes in overall survival and disease-specific survival following screening.

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  • * Patients with mutations showed significant clinical differences, such as larger ascending aortic diameters and higher instances of the DeBakey type I phenotype compared to those without mutations.
  • * There is an increased risk of in-hospital mortality for mutation carriers receiving conservative treatment, highlighting the need for tailored clinical approaches for affected individuals.
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Objective: To investigate whether plasma big endothelin-1 (ET-1) predicts ventricular arrythmias (VAs) and end-stage events in primary prevention implantable cardioverter-defibrillator (ICD) indication patigents.

Methods: In total, 207 patients fulfilling the inclusion criteria from Fuwai Hospital between January 2013 and December 2015 were retrospectively analyzed. The cohort was divided into three groups according to baseline plasma big ET-1 tertiles: tertile 1 (< 0.

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  • This study investigates the relationship between thyroid dysfunction and the occurrence of atrial fibrillation (AF) in patients with hypertrophic obstructive cardiomyopathy (HOCM), analyzing a cohort of 806 patients.
  • Results show that hypothyroidism is the most common thyroid condition among these patients, with higher rates of AF detected in individuals with both overt and subclinical hypothyroidism, along with significant differences in thyroid hormone levels between AF and non-AF groups.
  • The findings suggest that lower levels of free triiodothyronine (FT3), higher free thyroxine (FT4), and increased thyrotropin (TSH) levels are independently associated with a higher incidence of AF,
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Background: Tpeak-Tend interval (TpTe), a measurement of transmural dispersion of repolarization (TDR), has been shown to predict ventricular tachyarrhythmia in cardiac resynchronization therapy with defibrillator (CRT-D) patients. However, the ability of TpTe to predict ventricular tachyarrhythmia and mortality for heart failure patients with a cardioverter-defibrillator (ICD) is not clear. The purpose of this study was to assess the predictive ability of TpTe in heart failure patients with ICD.

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Background: Cardiac resynchronization therapy (CRT) is a highly effective treatment in patients with a class I recommendation. However, a small proportion of the strictly selected patients still fail to respond. This study was designed to identify predictors of non-response in patients with class I indications for CRT and determine the non-response probability of the patients.

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Objective: To evaluate the PR to RR interval ratio (PR/RR, heart rate-adjusted PR) as a prognostic marker for long-term ventricular arrhythmias and cardiac death in patients with implantable cardioverter defibrillator (ICDs) and cardiac resynchronization therapy with defibrillators (CRT-D).

Methods: We retrospectively analyzed data from 428 patients who had an ICD/CRT-D equipped with home monitoring. Baseline PR and RR interval data prior to ICD/CRT-D implantation were collected from standard 12-lead electrocardiograph, and the PR/RR was calculated.

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Background: Whether cardiac resynchronization therapy super-responders (CRT-SRs) still have indications for neuro-hormonal antagonists or not remains uninvestigated.

Methods: We reviewed clinical data from 376 patients who underwent CRT implantation in Fuwai Hospital from 2009 to 2015 and followed up to 2017. CRT-SRs were defined by an improvement of the New York Heart Association functional class and left ventricular ejection fraction to ≥ 50% in absolute values at 6-month follow-up.

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Background: Super-responders (SRs) are defined as patients who show crucial cardiac function improvement after cardiac resynchronization therapy (CRT). The purpose of this study is to identify and validate predictors of SRs after CRT.

Methods: This study enrolled 201 patients who underwent CRT during the period from 2010 to 2014.

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Background: This study aimed to investigate whether repetitive optimizing left ventricular pacing configurations (LVPCs) with quadripolar leads (QUAD) can improve response to cardiac resynchronization therapy (CRT).

Methods: Fifty-two eligible patients were enrolled and 1:1 randomized to either the quadripolar LV leads (QUAD) group or the conventional bipolar leads (CONV) group. In the QUAD group, optimization of LVPC was performed for all patients before discharge and for nonresponders at 3 months follow-up.

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Backgrounds: Clinical trials have demonstrated that cardiac resynchronization therapy (CRT) is effective in patients with "non-ischemic cardiomyopathy". However, patients with dilated-phase hypertrophic cardiomyopathy (DHCM) have been generally excluded from such trials. We aimed to compare the clinical outcome of CRT in patients with DHCM, idiopathic dilated cardiomyopathy (IDCM), or ischemic cardiomyopathy (ICM).

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Objectives: Inflammation has been shown to be related with acute aortic dissection (AAD). The present study aimed to evaluate the association of white blood cell counts (WBCc) on admission with both in-hospital and long-term all-cause mortality in patients with uncomplicated Stanford type B AAD.

Methods: From 2008 to 2010, a total of 377 consecutive patients with uncomplicated type B AAD were enrolled and then followed up.

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BACKGROUND Whether quadripolar leads can provide sufficient viable left ventricular pacing sites (LVPSs) for device optimization and multipoint pacing remains unclear. This study aimed to evaluate the acute and 3-month availability of viable LVPSs provided by a quadripolar LV pacing lead. MATERIAL AND METHODS A single-center cohort study evaluated consecutive patients who underwent a CRT implant with the QuartetTM LV lead under local guidelines.

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Article Synopsis
  • The study examines the effects of cardiac resynchronization therapy (CRT) on the Tpeak-Tend (TpTe) interval, which is linked to heart failure mortality, aiming to clarify its impact on repolarization dispersion and ventricular arrhythmia risk.
  • A total of 101 patients receiving CRT-defibrillator treatment were evaluated, showing an initial increase in TpTe followed by a decrease at one-year follow-up, with significant differences in left ventricular remodeling and arrhythmia rates based on whether TpTe was shortened.
  • The findings suggest that while acute TpTe changes post-CRT have limited impact on long-term heart remodeling and ventricular arrhythmia, meaningful long-term improvements occur for patients with a shortened TpTe at one year.
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Background: Biomarker-assisted diagnosis of acute aortic dissection (AAD) is important for diagnosis and treatment. However, identification of biomarkers for AAD in blood is a challenging task. The aim of this study is to search for new potentially microRNA (miRNAs) biomarkers in AAD.

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Objective: To determine the incidence and predictors of sudden cardiac death (SCD) in the current era of revascularisation of myocardial infarction (MI) survivors with reduced LVEF.

Methods: A prospective observational study was conducted in FuWai Hospital from 2004 to 2009. A total of 1018 consecutive patients who had an LVEF ≤35% and New York Heart Association Class II/III heart failure at least 40 days after MI were enrolled if they were not available for implantation of an implantable cardioverter defibrillator.

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Background: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a heritable cardiac disease predominantly caused by mutations in desmosomal protein genes. Previous genetic analyses of the Chinese ARVC population are limited to small size and restriction to a single gene. This study was aimed to investigate the genotype in a large series of Chinese patients with ARVC through comprehensively screening nine ARVC-causing genes.

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Rationale: Angiotensin II (Ang II) has pleiotropic effects on vascular smooth muscle cells (VSMCs). It has been demonstrated to promote the proliferative phenotype of VSMCs in mouse ascending aorta, but the underlying mechanisms remain incompletely understood.

Objective: The present study was designed to explore whether the Ca(2+)-permeable transient receptor potential melastatin 7 (TRPM7) channel is involved in Ang II-induced phenotype switching of ascending aortic VSMCs and to dissect the molecular mechanisms by which TRPM7 modulates VSMC phenotype.

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Introduction: An adenine insertion polymorphism in the 5' untranslated region of the endothelin-1 gene is functional and increases the expression of endothelin mRNA and protein in the insertion homozygote. In the present study we hypothesized that this functional polymorphism might be associated with hypertension and/or orthostatic hypotension.

Material And Methods: The adenine insertion polymorphism was genotyped in 381 untreated hypertensive patients and 298 normotensive subjects, all of whom underwent an upright posture study for orthostatic blood pressure measurements.

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Article Synopsis
  • Liddle's syndrome is a rare genetic condition that causes salt-sensitive high blood pressure and is passed down through families.
  • A study was conducted on a Chinese family to identify mutations in specific genes related to the epithelial sodium channel (ENaC) that could explain the syndrome.
  • The researchers found a significant mutation in the β ENaC gene present in the proband and her family members, but not in healthy controls, confirming the diagnosis and emphasizing the mutation's role in regulating sodium channel activity.
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Objectives: Our purpose was to investigate whether with-no-K[Lys] kinase (WNK) 1 and WNK4 genetic polymorphisms are associated with both hypertension and diuretics response.

Design And Methods: Two WNK1 and one WNK4 polymorphisms were detected in two independent populations (n = 1592 and 602) for association with hypertension, and in two clinical trials of hydrochlorothiazide treatment (n = 542 and 274) for association with diuretics response.

Results: Two polymorphisms were found to be associated with hypertension risk with odds ratio of 1.

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