Publications by authors named "Wei-xian Yang"

To discover novel antimicrobial drug, 22 novel acylated derivatives were synthesized by A-ring modification of glaucocalyxin A. The structures of these derivatives were confirmed by NMR and MS data. antimicrobial activity of these compounds was evaluated against , , MRSA, , and .

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Background: The impact of altitude on the prognosis of patients with coronary artery disease (CAD) after percutaneous coronary intervention (PCI) deserves further discussion and research.

Methods: We conducted a post hoc analysis of a prospective observational study involving 5453 patients post-PCI, divided into medium-altitude and low-altitude groups. To control for confounding factors, propensity score matching was employed to pair patients with similar baseline characteristics between the two groups.

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Background: Chronic total occlusions (CTO) occur in about 20% of patients referred for coronary angiography, and right coronary artery (RCA) CTO has been reported in 38-50% of the entire CTO population. Limited data on angiographic and procedural characteristics of RCA-CTO and the risk of adverse cardiac events asks for a detailed study.

Methods: From 2010 to 2013, patients with attempted revascularization of at least one CTO lesion were included and followed up to 5 years after PCI.

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Background: The prognostic value of coronary collateral circulation (CC) in patients undergoing chronic total occlusion (CTO) percutaneous coronary intervention (PCI) is underdetermined. The purpose of the study was to assess the prognostic value of current two CC grading systems and their association with long-term outcomes in patients with CTO underwent PCI.

Methods: We consecutively enrolled patients with single-vessel CTO underwent PCI between January 2010 and December 2013.

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Background: The recently introduced ultrasonic flow ratio (UFR), is a novel fast computational method to derive fractional flow reserve (FFR) from intravascular ultrasound (IVUS) images. In the present study, we evaluate the diagnostic performance of UFR in patients with intermediate left main (LM) stenosis.

Methods: This is a prospective, single center study enrolling consecutive patients with presence of intermediated LM lesions (diameter stenosis of 30%-80% by visual estimation) underwent IVUS and FFR measurement.

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Purpose: The presence of elevated fibrinogen levels is associated with cardiovascular disease. However, whether fibrinogen level is associated with adverse clinical events in patients with psoriasis and coronary artery disease (CAD) is unknown. This study aimed to investigate the relationship between fibrinogen levels and cardiovascular adverse events in these patients.

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Background: The prognostic value of lipoprotein (Lp) (a) in patients who have suffered from coronary artery disease (CAD) has not been fully studied, and the results are inconsistent. This study was conducted to evaluate whether increased Lp(a) concentrations cause differences in clinical adverse outcomes in patients with psoriasis who have already suffered from CAD.

Methods: This retrospective cohort study included consecutive patients with psoriasis and CAD between January 2017 and May 2022 in our hospital.

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Background: As an important place of material exchange, the homeostasis of the pulmonary circulation environment and function lays an essential foundation for the normal execution of various physiological functions of the body. Small metabolic molecules in the circulation can reflect the corresponding state of the pulmonary circulation.

Methods: We enrolled patients with Patent Foramen Ovale and obtained blood from the pulmonary arteries and veins through heart catheterization.

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Article Synopsis
  • A 38-year-old man was diagnosed with an acute heart attack in April 2021 and underwent a procedure to open a blocked artery using a technique that accessed the radial artery in his wrist.
  • By September 2021, he still experienced chest pain, leading to a second procedure where doctors discovered his radial artery was blocked.
  • They used a specialized balloon to treat the blockage, and after 24 hours, his arterial pulsation returned to normal, with successful follow-ups showing no complications over 14 months.
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Background: Chinese herbal medicine is widely used as a complement or alternative treatment in coronary artery disease (CAD) patients after percutaneous coronary intervention (PCI) in China. We compared the incidence of the major adverse cardiovascular event (MACE) of CAD patients with or without the complement use of Chinese herbal medicine after PCI.

Methods: In this prospective, observational study that was conducted from September 2016 to August 2019 in Fuwai Hospital (China), we followed up consecutive patients who received PCI treatment for two years.

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Objective: To provide a comprehensive introduction of mediastinal hematoma.

Background: Mediastinal hematoma is a rare complication that is usually not considered in the differential diagnosis of chest pain after cardiac catheterization.

Methods: From January 1, 2006, to December 31, 2013, at Fuwai Hospital, 126,265 patients underwent coronary angiography (CAG); 121,215 of them underwent CAG via the radial artery.

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There have been no systemic studies about right heart filling pressure and right ventricular (RV) distensibility in patients with chronic thromboembolic pulmonary hypertension (CTEPH). Therefore, we aimed to explore combinations of echocardiographic indices to assess the stages of RV diastolic dysfunction. We recruited 32 healthy volunteers and 71 patients with CTEPH.

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Article Synopsis
  • The study assessed the prevalence and characteristics of Fabry disease (FD) in 217 Chinese patients with hypertrophic cardiomyopathy (HCM), finding that FD occurred in 0.93% of them.
  • Two patients diagnosed with symptomatic obstructive HCM presented with different GLA gene mutations and significant complications, including dual ventricular hypertrophy and conduction issues.
  • The research suggests that early genetic screening for FD in HCM patients is essential, as surgical interventions and treatment with migalastat can enhance patient outcomes.
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Background: Percutaneous coronary intervention (PCI) in patients with unprotected left main coronary artery disease (ULMCAD) is increasing strategy in coronary artery patients. However, there is a lack of knowledge on the impact of sex on outcomes of patients undergoing ULMCAD PCI.

Methods: From January 2004 to December 2015, there were 3,960 patients undergoing ULMCAD PCI at our institution, including 3,121 (78.

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Myocardial injury is a life-threatening complication of coronavirus disease 2019 (COVID-19). Pre-existing health conditions and early morphological alterations may precipitate cardiac injury and dysfunction after contracting the virus. The current study aimed at assessing potential risk factors for COVID-19 cardiac complications in patients with pre-existing conditions and imaging predictors.

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Background: The impact of fibrinolysis-first strategy on outcomes of patients with ST-segment-elevation myocardial infarction (STEMI) during the COVID-19 pandemic was unknown.

Methods: Data from STEMI patients presenting to Fuwai Hospital from January 23 to April 30, 2020 were compared with those during the equivalent period in 2019. The primary end-point was net adverse clinical events (NACE; a composite of death, non-fatal myocardial reinfarction, stroke, emergency revascularization, and bleeding over BARC type 3).

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Background: Coronary atherosclerotic plaque could go through rapid progression and induce adverse cardiac events. This study aimed to evaluate the impacts of smoking status on clinical outcomes of coronary non-target lesions.

Methods: Consecutive patients with coronary heart disease who underwent two serial coronary angiographies were included.

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New Findings: What is the central question of this study? The concentrations of β -adrenergic receptor and M -muscarinic receptor autoantibodies in hypertrophic cardiomyopathy (HCM) patients and the relationship between the cardiac autoantibodies and clinical manifestations of HCM have rarely been reported. What is the main finding and its importance? We found that the concentrations of the two autoantibodies in HCM patients were significantly higher than those in control subjects. Furthermore, we found that the concentrations of the two autoantibodies could reflect myocardial injury and diastolic dysfunction in HCM patients to some extent and might be involved in the occurrence of arrhythmia.

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Objectives: To evaluate the feasibility and safety of a second generation robotic percutaneous coronary intervention (R-PCI) system in China.

Background: Robotic PCI has been shown to be an effective method for conducting coronary interventions. It has further benefits of more accurate lesion measurement, improved stent deployment, reduced incidence of geographic miss and reduction of operator radiation exposure.

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With the development of coronary angiography for the diagnosis of coronary artery disease, its clinical significance in detecting coronary artery anomalies and evaluating the seriousness is attracting more attention. In the study we aimed to assess the prevalence of anomalous origin of coronary arteries in a Chinese population who underwent coronary angiography for coronary artery disease, and explore any patterns in the common variants and typical anomalies, especially the potentially serious ones. Patients who underwent coronary angiography from January 2013 to December 2016 in Fuwai Hospital were included.

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It is believed that high levels of mesophyll conductance () largely contribute to the high rates of photosynthesis in herbaceous C plants. However, some sclerophyllous C plants that display low levels of have high rates of photosynthesis, and the underlying mechanisms responsible for high photosynthetic rates in sclerophyllous C plants are unclear. In the present study, we examined photosynthetic characteristics in two high-photosynthesis plants (the sclerophyllous and the herbaceous ) using measurements of gas exchange and chlorophyll fluorescence.

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Aims: Data on the effectiveness of alcohol septal ablation (ASA) in patients with hypertrophic cardiomyopathy (HCM) and extreme septal hypertrophy (ESH) are lacking. This study aimed to compare the effectiveness of ASA in patients with vs without ESH.

Methods: Clinical profiles of 17 patients with ESH and 256 patients without ESH were compared.

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Objectives: We investigated sex differences in left ventricular (LV) remodeling and fibrosis and their relationship with LV diastolic dysfunction by cardiovascular magnetic resonance (CMR).

Methods: CMR imaging was performed simultaneously in 152 age-matched patients (76 men, 76 women; mean age: 49±9 years) without LV systolic dysfunction. LV remodeling index (LVRI) was calculated as the ratio of LV mass and end-diastolic volume.

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Alcohol septal ablation (ASA) has been shown to improve left ventricular (LV) diastolic function in patients with obstructive hypertrophic cardiomyopathy (HCM). However, its beneficial effect on diastolic function assessed by cardiac magnetic resonance (CMR) has not been reported. We investigated the mid-term changes of diastolic function by CMR combined with echocardiography in HCM patients after ASA at a median of 14-month follow-up.

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The aim of the present study was to investigate the long-term effects of alcohol septal ablation (ASA) on left ventricular (LV) and right ventricular (RV) remodeling in patients with obstructive hypertrophic cardiomyopathy (HC) using cardiovascular magnetic resonance (CMR). CMR was performed at baseline and 16 months after ASA in 38 patients with obstructive HC (mean age 48 ± 9 years) despite optimal medical treatment. ASA resulted in significant reductions of LV outflow tract gradient (mean 89 ± 22 vs 24 ± 12 mm Hg, p <0.

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