Publications by authors named "Jang Hoon Lee"

Aim: Allergic diseases, such as asthma, allergic rhinitis (AR), and atopic dermatitis (AD) are prevalent chronic childhood conditions, with a rising incidence globally and in South Korea. Neonatal jaundice is a common perinatal condition. However, its association with the subsequent development of allergic diseases remains unclear.

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Introduction: Intravenous lipid emulsions are essential for parenteral nutrition in preterm infants. However, hypertriglyceridemia (HTG) is a common complication that can lead to severe complications if left untreated. This study analyzed factors influencing HTG and the effects of reduced intravenous lipid emulsion dosages.

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Background: Acute kidney injury (AKI) is commonly observed in critically ill neonates; however, early identification of AKI in the first week of life is challenging due to the influence of maternal serum creatinine (SCr). An alternative criterion proposed by Gupta et al. based on SCr decline may identify additional infants at risk beyond the KDIGO definition.

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Background: Appropriate stress reportedly influences memory gains. However, stress levels may vary across individuals and may lead to changes in vital signs as a physiological response induced by endogenous hormone secretion. The aim of this study was to evaluate the impact of high-fidelity simulation (HFS) training on cognitive performance using Perceived Stress Scale (PSS) scores as a subjective stress indicator and vital sign measurements as an objective stress indicator during Neonatal Resuscitation Program training.

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Rotational atherectomy (RA) is a crucial method for percutaneous coronary intervention (PCI) of heavily calcified coronary lesions. The aim of this study was to compare the clinical outcomes in patients undergoing RA via the radial versus femoral approach. The Rotational Atherectomy in Calcified Lesions in Korea (ROCK) registry included consecutive patients with severely calcified coronary artery disease who received RA during PCI at nine tertiary centers in Korea.

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: There has been an increase in the incidence of comorbidities among very-low-birth-weight infants (VLBWIs), including periventricular leukomalacia (PVL), bronchopulmonary dysplasia (BPD), and retinopathy of prematurity (ROP). Parenteral nutrition is essential for very-low-birth-weight infants (VLBWIs) who are born with a birth weight of less than 1500 g, but a longer duration of parenteral nutrition is known to have a risk of comorbidity, such as ROP. This study aims to investigate the relationship between the duration of parenteral nutrition and the comorbidities of the VLBWIs.

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Background: Salvage surgery following epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor therapy is a viable treatment option for selected patients with initially unresectable non-small cell lung cancer (NSCLC) harboring mutations.

Case Description: We herein describe a 63-year-old man who presented to the emergency department with a 1-week history of speech disturbance and was diagnosed with clinical stage T1cN2M1b, IVA NSCLC with an exon 21 L858R mutation. The patient underwent brain tumor resection followed by stereotactic radiosurgery and was treated with palliative lazertinib for 6 months.

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Background And Objectives: There are limited randomized studies on patients undergoing multi-vessel percutaneous coronary intervention (PCI) comparing the outcomes between stent thickness and polymer types. To compare the clinical outcomes of thick biodegradable polymer-based biolimus A9-eluting stents (BESs) and thin durable polymer-based zotarolimus-eluting stents (ZESs) in patients undergoing multi-vessel PCI.

Methods: A total of 936 patients who underwent multi-vessel coronary artery stenting were randomly assigned to the BES (n=472) or ZES (n=464) groups.

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Deafness, dystonia, and central hypomyelination (DDCH) syndrome (OMIM #300475) is a rare X-linked genetic disorder characterized by developmental delays, deafness, central hypomyelination, and dystonia. We report the first Korean familial case involving twin boy and girl carrying a novel pathogenic variant which was inherited from their mother. The male proband, born prematurely with very low birth weight (VLBW), exhibited severe global developmental delay, microcephaly, failure to thrive, dystonia, seizures, sensorineural hearing loss (SNHL) requiring cochlear implantation, and mild facial dysmorphism.

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Owing to limited data on the optimal timing of rotational atherectomy (RA), we sought to evaluate the clinical impact of the early application of the RA strategy. Consecutive patients with severe coronary artery calcification were enrolled, who underwent percutaneous coronary intervention (PCI) using RA between January 2010 and October 2019 at 9 tertiary centers. Direct RA was defined as the early application of RA before the balloon was expanded to a size more than or equal to 2.

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Background: Recently developed artificial intelligence-based coronary angiography (AI-QCA, fully automated) provides real-time, objective, and reproducible quantitative analysis of coronary angiography without requiring additional time or labor.

Objectives: This study aimed to evaluate the efficacy of AI-QCA-assisted percutaneous coronary intervention (PCI) compared to optical coherence tomography (OCT)-guided PCI in terms of post-PCI results.

Methods: This trial enrolled 400 patients with significant coronary artery disease undergoing PCI from 13 participating centers in South Korea.

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Article Synopsis
  • * Results showed that during the first week, STEMI patients had a significantly higher mortality rate (4.62%) compared to NSTEMI patients (1.79%), but this trend reversed after the second week for men and the tenth week for women.
  • * The research highlights the need for further studies to develop advanced risk prediction models based on time-point mortality outcomes, as different baseline variables influenced mortality rates over time.
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Introduction: The diagnosis of myocardial infarction (MI) needs to be swift and accurate, but definitively diagnosing it based on the first test encountered in clinical practice, the electrocardiogram (ECG), is not an easy task. The purpose of the study was to develop a deep learning (DL) algorithm using multitask learning method to differentiate patients experiencing MI from those without coronary artery disease using image-based ECG data.

Methods: A DL model was developed based on 11,227 ECG images.

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Many countries have published clinical practice guidelines for appropriate clinical decisions, optimal treatment, and improved clinical outcomes in patients with acute coronary syndrome. Developing guidelines that are specifically tailored to the Korean environment is crucial, considering the treatment system, available medications and medical devices, racial differences, and level of language communication. In 2017, the Korean Society of Myocardial Infarction established a guideline development committee.

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Article Synopsis
  • South Korea introduced a combined vaccine for diphtheria, tetanus, pertussis, poliomyelitis, and type b invasive infections (DTaP-IPV/Hib) for infants starting at 2 months old in 2018, and a study evaluated its safety from 2018 to 2022.
  • In total, 646 out of 660 infants were monitored for 30 days after vaccination, and 22.1% experienced adverse events (AEs), primarily mild issues like fever, injection site swelling, and irritability.
  • The study found that most AEs were not serious, with very few leading to serious adverse events (SAEs), confirming that the DTaP-IPV/H
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Background: High sodium and low potassium consumption are related to hypertension and cardiovascular disease. We aimed to determine the relationship between the frequency of salt addition and potassium consumption with the risk of new-onset atrial fibrillation (AF).

Methods: Our study used the UK Biobank cohort, which included over 500,000 individuals enrolled from the United Kingdom between 2006 and 2010.

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This study investigated whether hospital factors, including patient volume, unit level, and neonatologist staffing, were associated with variations in standardized mortality ratios (SMR) adjusted for patient factors in very-low-birth-weight infants (VLBWIs). A total of 15,766 VLBWIs born in 63 hospitals between 2013 and 2020 were analyzed using data from the Korean Neonatal Network cohort. SMRs were evaluated after adjusting for patient factors.

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Purpose: This study aimed to investigate the difference in satisfaction and learning benefits between e-portfolios compared to paper portfolios during clinical practice in medical schools.

Methods: Utilization of and satisfaction with e-portfolios among 40 third-year medical students in the medicine department of Ajou University School of Medicine was collected using an online survey in December 2020. The collected data were analyzed using descriptive statistics and an analysis of variance.

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: Self-recognition of recurrent myocardial infarction (re-MI) may be essential for reducing prehospital time contrast to awareness of re-MI symptoms. However, data on the current status and clinical impact of self-recognition of re-MI are limited in the contemporary period. Thus, this study aimed to increase this body of knowledge.

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Patient safety education is necessary for the provision of high-quality medical services. A significant aspect of patient safety education is simulation training, which allows medical students to experience realistic clinical environments. This study aimed to verify the effectiveness of patient safety education using simulation training.

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Imaging modalities for percutaneous coronary intervention (PCI), such as intravascular ultrasound (IVUS) or optical coherence tomography (OCT), have increased in the current PCI era. However, their clinical benefits in acute myocardial infarction (AMI) have not been fully elucidated. This study investigated the long-term outcomes of image-guided PCI in patients with AMI using data from the Korean Acute Myocardial Infarction Registry.

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Background: Artificial intelligence-based quantitative coronary angiography (AI-QCA) has been developed to provide a more objective and reproducible data about the severity of coronary artery stenosis and the dimensions of the vessel for intervention in real-time, overcoming the limitations of significant inter- and intraobserver variability, and time-consuming nature of on-site QCA, without requiring extra time and effort. Compared with the subjective nature of visually estimated conventional CAG guidance, AI-QCA guidance provides a more practical and standardized angiography-based approach. Although the advantage of intravascular imaging-guided PCI is increasingly recognized, their broader adoption is limited by clinical and economic barriers in many catheterization laboratories.

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Though Isoimperatorin from is known to have antiviral, antidiabetic, anti-inflammatory and antitumor effects, its underlying antitumor mechanism remains elusive so far. Hence, the apoptotic mechanism of Isoimperatorin was explored in hepatocellular carcinomas (HCCs). In this study, Isoimperatorin inhibited the viability of Huh7 and Hep3B HCCs and increased the subG1 apoptotic portion and also abrogated the expression of pro-poly-ADP ribose polymerase (pro-PARP) and pro-caspase 3 in Huh7 and Hep3B cells.

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