Publications by authors named "Lung-chun Lin"

Transthoracic echocardiography plays a crucial role in clinical diagnosis and is increasingly being used around the world. Comprehensive echocardiographic examinations require accurate measurements and the operators to have excellent technical skills. Despite the availability of several published echocardiographic guidelines, the absence of recommended operational manuals in daily practice has resulted in significant variation in the content of echocardiography reports across different medical institutions.

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Background: Clinical and experimental evidence have demonstrated the protective benefits of colchicine in acute myocardial infarction (AMI) through its potential anti-inflammatory effect. However, investigations on the Asian population are limited.

Methods: This retrospective longitudinal cohort study used electronic medical records from a tertiary medical center in Taiwan.

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Although the benefits of sacubitril/valsartan in heart failure with reduced ejection fraction (HFrEF) are well established, patients with hemodynamically significant mitral regurgitation (MR) were excluded from pivotal trials. We aimed to assess the effects of sacubitril/valsartan on survival in patients with HFrEF and concomitant significant MR. All patients from a single center who underwent echocardiography between June 2008 and December 2020, with a left ventricular ejection fraction (LVEF) of less than 40% and hemodynamically significant MR were recruited.

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The left ventricular global longitudinal strain (LVGLS) is a crucial prognostic indicator. However, inconsistencies in measurements due to the speckle tracking algorithm and manual adjustments have hindered its standardization and democratization. To solve this issue, we proposed a fully automated strain measurement by artificial intelligence-assisted LV segmentation contours.

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Article Synopsis
  • Exercise intolerance is a common issue for patients with atrial fibrillation (AF), and this study sought to identify echocardiographic markers that could predict their exercise capacity.
  • The study involved 188 patients with AF who underwent echocardiography and cardiopulmonary exercise testing, finding that 71.2% had impaired exercise capacity, with specific echocardiographic features linked to this decline.
  • The left atrial to left ventricular end-diastolic diameter (LA/LVEDD) ratio emerged as a significant predictor of exercise capacity, suggesting its potential importance for patient management, although further research is needed.
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Objective: Individuals with hyperthyroidism are at an increased risk of atrial fibrillation (AF), but the association between autoantibodies and AF or cardiovascular mortality in individuals who have returned to normal thyroid function remains unclear.

Methods: The study utilized electronic medical records from National Taiwan University Hospital between 2000 and 2022. Each hyperthyroidism patient had at least 1 thyrotropin-binding inhibiting immunoglobulin (TBII) measurement.

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Background: Transthyretin cardiomyopathy (ATTR-CM) is a debilitating disease that has received much attention since the emergence of novel treatments. The Transthyretin Cardiomyopathy Clinical Trial showed that tafamidis, a transthyretin tetramer stabilizer, effectively reduced the declines in functional capacity and quality of life. However, Ala97Ser (A97S) hereditary ATTR-CM is underrepresented in major ATTR-CM tafamidis trials.

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Trans-femoral transcatheter aortic valve replacement (TF-TAVR) performed under conscious sedation (LACS) is not yet become routine practice in Taiwan. We aimed to compared the results between patients received general anesthesia (GA) versus LACS. Our cohort was divided into 3 groups: initial 48 patients received TF-TAVR under routine GA (GA group), subsequent 50 patients under routine LACS (LACS group 1), and recent 125 patients under LACS (LACS group 2).

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The goal of this study was to assess the feasibility of three models for detecting hydronephrosis through ultrasound images using state-of-the-art deep learning algorithms. The diagnosis of hydronephrosis is challenging because of varying and non-specific presentations. With the characteristics of ready accessibility, no radiation exposure and repeated assessments, point-of-care ultrasound becomes a complementary diagnostic tool for hydronephrosis; however, inter-observer variability still exists after time-consuming training.

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Background: Data comparing the neurocognitive trajectory between low and intermediate-high risk patients following transcatheter aortic valve replacement (TAVR) is never reported.

Aims: To report serial neurocognitive changes up to 1 year post-TAVR in low and intermediate-high risk groups as well as overall cohort.

Methods: Prospective neurological assessments (NIHSS and Barthel Index), global cognitive tests (MMSE and Alzheimer Disease Assessment Scale-Cognitive Subtest, ADAS-cog) and executive performances (Color Trail Test A and B and verbal fluency), were applied at baseline, 3 months and 1 year post-TAVR.

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Background: A well-functioning cardiopulmonary system, which works as a pump, should generate adequate stroke volume with as little stroke work as possible. We propose a new composite parameter, right ventricular (RV) pump efficiency (η) = left ventricular stroke volume / right ventricular stroke work, to describe this idea in a volume overload population with secundum-type atrial septal defect (ASD).

Methods: We consecutively enrolled 50 patients with secundum-type ASD to investigate the relationship between right-sided volume overload and RV pump efficiency.

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Background/purpose: Sport-specific adaptations of athlete's hearts are still under investigation. This study sought to 1) identify athlete groups with similar characteristics by clustering echocardiographic data; 2) externally validate the data-driven clusters with sport classifications of various dynamic or static loads to support the conventional hypothesis-driven approach in delineating the athlete's heart.

Methods: Anthropometric, echocardiographic and electrocardiographic assessments were collected during the 2017 Summer Universiade in Taiwan.

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Our study aimed to compare the difference of LV mass regression and remodeling in regard of conduction disturbances (CD) following transcatheter aortic valve replacement (TAVR). A prospective analysis of 152 consecutive TAVR patients was performed. 53 patients (34.

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Objectives: Patients with primary aldosteronism (PA) have cardiac remodeling due to hemodynamic and non-hemodynamic causes. However, component analysis of cardiac remodeling and reversal in PA patients is lacking. We investigated components of cardiac remodeling and reversal after adrenalectomy in patients with aldosterone-producing adenoma (APA).

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Primary aldosteronism is the most common secondary endocrine form of hypertension and causes many cardiovascular injuries. somatic mutations have recently been identified in aldosterone-producing adenoma. However, their impacts on left ventricular remodeling precluding the interference of age, sex, and blood pressure are still uncertain.

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Objectives: The aim of this study was to develop an artificial intelligence tool to assess echocardiographic image quality objectively.

Background: Left ventricular global longitudinal strain (LVGLS) has recently been used to monitor cancer therapeutics-related cardiac dysfunction (CTRCD) but image quality limits its reliability.

Methods: A DenseNet-121 convolutional neural network was developed for view identification from an athlete's echocardiographic dataset.

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Cardiac remodeling is common in the athletes. Little data is available regarding the cardiac remodeling on the recently proposed 4 sport disciplines among the elite university athletes.A total of 7639 athletes participated in the 2017 Taipei Summer Universiade.

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Cardiac computed tomography (CT) is increasingly used to plan transcatheter structural heart interventions. However, intraoperative guidance relies on transesophageal echocardiography (TEE) and fluoroscopy. This study sought to develop a stepwise CT multi-planar reconstruction manipulation method to mimic TEE, bridging the gap between preoperative planning and intraoperative guidance tools.

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Background: In patients undergoing transcatheter aortic valve replacement (TAVR), the severity of paravalvular leakage (PVL) may change during follow-up, however its mechanism is poorly understood. We aimed to explore temporal changes in PVL and possible predictors following TAVR.

Methods: A retrospective analysis was performed of all patients who had received a self-expanding valve.

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Apoptosis and fibrosis play a vital role in myocardial infarction (MI) induced tissue injury. Although microRNAs have been the focus of many studies on cardiac apoptosis and fibrosis in MI, the detailed effects of miR-26a is needed to further understood. The present study demonstrated that miR-26a was downregulated in ST-elevation MI (STEMI) patients and oxygen-glucose deprivation (OGD)-treated H9c2 cells.

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Background Primary aldosteronism is the most common cause of secondary hypertension and is associated with left ventricular hypertrophy. However, whether aldosterone excess is responsible for left ventricular (LV) diastolic dysfunction is unknown. Methods and Results We prospectively enrolled 129 patients with aldosterone-producing adenoma and 120 patients with essential hypertension, and analyzed their clinical, biochemical, and echocardiographic data, including tissue Doppler images.

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Estimated glomerular filtration rate (eGFR) is an important topic in patients with primary aldosteronism (PA). However, the relationship between left ventricular structure and eGFR is unclear. We conducted a prospective, observational, and cross-sectional study to analyze 168 patients with PA and 168 propensity score-matched patients with essential hypertension (EH) as the control group, matched by age, gender, and systolic blood pressure.

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Background/purpose: This study analyzed the effects of the General Medicine Faculty Training Program (GMFTP), which was implemented in 2009. The training program includes a 7-hour basic training (BT) to introduce ways of teaching and assessing the 6 core competencies identified by the Accreditation Council for Graduate Medical Education, and a 40-hour clinical training program.

Methods: Physicians from different hospitals attended the GMFTPs.

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Background: Myocardial infarction (MI) is a life-threatening disease, often leading to heart failure. Defining therapeutic targets at an early time point is important to prevent heart failure.

Methods: MicroRNA screening was performed at early time points after MI using paired samples isolated from the infarcted and remote myocardium of pigs.

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Background: To describe and evaluate the intentional combination of Angio-Seal (AS) and Perclose ProGlide (PP) in achieving haemostasis in patients undergoing transfemoral transcatheter aortic valve replacement (TAVR).

Methods: This study cohort was divided into two groups: dual PP versus one AS with one PP (AS + PP) used for common femoral artery haemostasis. The baseline, procedural characteristics and all outcomes (defined according toVARC-2 criteria) were prospectively collected and retrospectively compared.

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