93 results match your criteria: "College of Medicine Seoul Republic of Korea.[Affiliation]"

Background: Current guidelines lack recommendations regarding the use of proton pump inhibitors (PPIs) for preventing upper gastrointestinal bleeding (UGIB) among patients at low risk for UGIB treated with dual antiplatelet therapy for ischemic stroke (IS). Our objective was to assess the effectiveness of PPIs in lowering the risk of significant UGIB in this patient group.

Methods And Results: A retrospective cohort study was conducted involving patients at low risk for UGIB admitted for IS between 2014 and 2018 and treated with dual antiplatelet therapy.

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Objective: This study aimed to evaluate the intraoperative use of a drain line for smoke suction during robotic thyroidectomy using a gas insufflation one-step single-port transaxillary (GOSTA) approach and its impact on surgical outcomes.

Study Design: Retrospective cohort study.

Setting: University tertiary care facility.

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In the last three decades, ablation of atrial fibrillation (AF) has become an evidence-based safe and efficacious treatment for managing the most common cardiac arrhythmia. In 2007, the first joint expert consensus document was issued, guiding healthcare professionals involved in catheter or surgical AF ablation. Mounting research evidence and technological advances have resulted in a rapidly changing landscape in the field of catheter and surgical AF ablation, thus stressing the need for regularly updated versions of this partnership which were issued in 2012 and 2017.

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  • Heart degenerative diseases are hard to treat because the heart has a poor ability to regenerate lost cells called cardiomyocytes.
  • Direct cellular reprogramming using small molecules offers a safer way to create functional cardiomyocytes without modifying genes, but the current methods are not very efficient and lead to immature cells.
  • This study found that delivering mitochondria from high-energy organs can improve the maturity and functionality of chemically induced cardiomyocyte-like cells (CiCMs), which may enhance their potential use in regenerative medicine.
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  • Researchers examined how genetic risk for cardiovascular diseases (CVDs) interacts with air pollution exposure to influence CVD outcomes.
  • Using data from the UK Biobank involving over 249,000 participants, they found that individuals with high genetic risk who were also exposed to high levels of particulate matter (PM) faced significantly increased risks of cardiovascular death.
  • The study suggests that reducing PM exposure and tailoring preventive strategies for those at high genetic risk could improve cardiovascular health outcomes.
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  • Optimal medical treatment using angiotensin receptor-neprilysin inhibitors (ARNI) can improve left ventricular ejection fraction (LVEF) in patients with heart failure with reduced EF (HFrEF), with a significant portion (46.4%) experiencing improvement after one year.
  • The study identified several factors affecting outcomes: older age, male sex, and larger heart size predicted persistent HFrEF, while atrial fibrillation and high blood pressure were inversely linked.
  • Patients with improved ejection fraction (HFimpEF) had lower rates of all-cause and cardiac mortality compared to those with persistent HFrEF (perHFrEF), suggesting that ARNI therapy leads to better overall outcomes in HFrEF
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  • This study looked into how delaying catheter ablation for atrial fibrillation (AF) affects outcomes in patients not responding to antiarrhythmic drugs (AAD) by analyzing data from 1,038 persistent AF patients.
  • Results indicated that patients who didn't respond to AAD had a higher likelihood of experiencing AF recurrence after ablation, especially those with longer diagnosis-to-ablation times (DAT).
  • The optimal DAT cutoff for better outcomes was identified as 22 months, suggesting that waiting longer than this period for ablation could be detrimental for certain patients, particularly those whose condition improved on AAD therapy.
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  • This study looks at the link between traumatic brain injury (TBI) and the risk of stroke in young-to-middle-aged adults aged 18 to 49, highlighting that TBI significantly increases the likelihood of having a stroke.
  • Data from over 500,000 adults with TBI revealed that stroke incidence was 3.82 per 1000 person-years compared to 1.61 in healthy controls, with TBI patients facing nearly double the risk of stroke.
  • The findings stress the importance of stroke prevention measures in younger patients after TBI, emphasizing the need for regular health checkups and lifestyle changes to manage stroke risk factors.
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  • Elevated blood viscosity (BV) plays a crucial role in cerebrovascular diseases, and this study examines its impact on regional white matter hyperintensity (WMH) volume in patients who have experienced an acute ischemic stroke.
  • Involving 302 patients, researchers measured BV and used advanced software to quantify WMH volumes, finding that higher systolic BV is linked to increased deep WMH volume, especially in older patients with specific health conditions.
  • The findings suggest that managing blood viscosity could be a potential therapeutic strategy to improve brain circulation for stroke patients.
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Risk of Heart Disease in Patients With Amputation: A Nationwide Cohort Study in South Korea.

J Am Heart Assoc

May 2024

Department of Clinical Research Design & Evaluation Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University Seoul Republic of Korea.

Background: Amputation confers disabilities upon patients and is linked to substantial morbidity and death attributed to heart disease. While some studies have focused on traumatic amputees in veterans, few studies have focused on traumatic amputees within the general population. Therefore, the present study aimed to assess the risk of heart disease in patients with traumatic amputation with disability within the general population using a large-scale nationwide population-based cohort.

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Background: A study was designed to investigate whether the coronary artery disease polygenic risk score (CAD-PRS) may guide lipid-lowering treatment initiation as well as deferral in primary prevention beyond established clinical risk scores.

Methods And Results: Participants were 311 799 individuals from the UK Biobank free of atherosclerotic cardiovascular disease, diabetes, chronic kidney disease, and lipid-lowering treatment at baseline. Participants were categorized as statin indicated, statin indication unclear, or statin not indicated as defined by the European and US guidelines on statin use.

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  • A study examined whether adjusting radiofrequency (RF) energy based on left atrial wall thickness (LAWT) during circumferential pulmonary vein isolation (CPVI) improved outcomes for patients with paroxysmal atrial fibrillation (PAF).
  • 212 patients were divided into two groups: one received LAWT-guided CPVI while the other underwent conventional CPVI, both using specific RF delivery protocols.
  • After an average follow-up of 13.4 months, results showed no significant differences in clinical recurrence rates, major complications, and other procedural outcomes between the two groups, indicating that the tailored approach did not enhance safety or efficacy.
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Background: Cardiopulmonary exercise test (CPET) with supine bicycle echocardiography (SBE) enables comprehensive physiologic assessment during exercise. We characterized cardiopulmonary fitness by integrating CPET-SBE parameters and evaluated its prognostic value in patients presenting with dyspnea.

Methods And Results: We retrospectively reviewed 473 consecutive patients who underwent CPET-SBE for dyspnea evaluation.

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Long-Term Functional Outcome in Patients With Isolated Thalamic Stroke: The KOSCO Study.

J Am Heart Assoc

February 2024

Department of Physical and Rehabilitation Medicine, Center for Prevention and Rehabilitation, Heart Vascular Stroke Institute, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea.

Background: Information on the long-term prognosis in patients with isolated thalamic stroke is sparse. We report the functional outcomes of patients with thalamic stroke up to 24 months from the KOSCO (Korean Stroke Cohort for Functioning and Rehabilitation) study.

Methods And Results: Isolated thalamic stroke was defined as the presence of lesions solely in the thalamus, excluding cases with lesions in other brain parenchyma areas apart from the thalamus, as identified by brain magnetic resonance imaging or computed tomography scans.

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Background: Since 2017, the cardiac rehabilitation (CR) program in Korea has been included in the coverage provided by the National Health Insurance to alleviate financial burden. Our study aimed to identify changes in the CR program use according to the implementation of CR coverage.

Methods And Results: We obtained data from the electronic medical records of a tertiary hospital in Seoul, Korea from January 2014 to February 2020.

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Background: Meta-analyses of large clinical trials investigating SGLT2 (sodium-glucose cotransporter-2) inhibitors have suggested their protective effects against atrial fibrillation in patients with type 2 diabetes. However, the results were predominantly driven from trials involving dapagliflozin.

Methods And Results: We used a nationwide, population-based cohort of patients with type 2 diabetes who initiated either dapagliflozin or empagliflozin between May 2016 and December 2018.

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  • The study examined nonhypertensive white matter hyperintensity (WMH) as a risk factor in acute ischemic strokes and transient ischemic attacks, involving over 3,000 patients, half with hypertension and half without.
  • Approximately 35% of nonhypertensive patients showed moderate-to-severe WMH, linked to factors like age and previous strokes, while hypertensive patients exhibited different WMH patterns and a stronger correlation to small vessel occlusions.
  • The findings indicated that WMH significantly affects functional outcomes after 3 months and is associated with cumulative risks of recurrent stroke and mortality, although its impact varied based on hypertension status.
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Background: Patients with moyamoya disease (MMD) have a high risk of stroke or death. We investigated whether extracranial to intracranial bypass surgery can reduce mortality by preventing strokes in patients with MMD.

Methods And Results: This nationwide retrospective cohort study encompassed patients with MMD registered under the Rare Intractable Diseases program via the Relieved Co-Payment Policy between 2006 and 2019, using the Korean National Health Insurance Service database.

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Objective: The aim of this study is to assess the value of using videofluoroscopic swallowing study (VFSS) for assessing vocal fold paralysis.

Methods: This was a retrospective study of patients who underwent VFSS with a vocal fold testing maneuver from June 2020 to February 2022, and who had undergone laryngoscopy within 2 weeks before or after VFSS. The vocal fold testing maneuver consisted of making an 'e' sound for about 2-3 seconds during VFSS anterior-posterior (AP) view.

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Background Triglyceride and glucose (TyG) index and TyG-related indices combined with obesity-related markers are considered important markers of insulin resistance. We aimed to examine the association between the TyG index and modified TyG indices with new-onset hypertension and their predictive ability stratified by sex. Methods and Results We analyzed data from 5414 Korean Genome and Epidemiology Study participants aged 40 to 69 years.

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Background To evaluate the association of dental diseases and oral hygiene care with incidence of heart failure (HF) among patients with type 2 diabetes. Methods and Results This study included 173 927 patients with type 2 diabetes aged ≥40 years, who underwent Korean National Health Insurance Service health examinations in 2008 and were followed up until the end of 2017. Hazard ratios (HRs) and 95% CIs for HF were estimated using multivariable Cox proportional hazards regression analysis.

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  • A new method for diagnosing atherosclerosis in the carotid artery involves using nanometer biomarker measurements from single-drop blood samples analyzed through surface-enhanced Raman spectroscopy (SERS).
  • The study used a mouse model with induced atherosclerosis to compare affected and control arteries, confirming disease progression via advanced imaging and histology.
  • Utilizing principal component analysis (PCA) and a machine learning algorithm, the diagnostic accuracy for identifying atherosclerosis severity reached 94.5% and 97.5%, respectively, showcasing the potential for early detection using just a drop of blood.
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