Publications by authors named "Hyunseung Nam"
Objectives: To investigate the association between the severities of left ventricular (LV) systolic dysfunction and clinical outcomes in patients with sepsis, with a particular focus on in-hospital mortality.
Design: Multicenter cohort study.
Setting: Nineteen tertiary or university-affiliated hospitals in South Korea.
Evaluating diagnostic yield and accuracy as key performance metrics in pulmonary lung lesions.
Front Med (Lausanne)
May 2025
Objective: A conservative definition of diagnostic yields for assessing the performance of guided bronchoscopy has been proposed, but it has yet to be validated in practice.
Methods: Patients who underwent radial endobronchial ultrasound (R-EBUS) between April 2020 and April 2023 were included in the study. Diagnostic results were classified as malignant or non-malignant based on the post-lung-biopsy pathology.
Background: Sepsis-induced cardiac dysfunction, known as septic cardiomyopathy, is a common complication associated with increased mortality. Cardiac troponins serve as markers for myocardial injury and are frequently elevated in patients with sepsis. However, the role of troponin elevation at sepsis recognition in risk stratification remains controversial.
View Article and Find Full Text PDFArticle Synopsis
- There is uncertainty about how long to monitor pure ground-glass nodules (pGGNs) found on low dose CT scans, and longer studies are needed to determine optimal follow-up times.
- This retrospective study analyzed 135 pGGNs in 89 patients over a median follow-up of 193 months, revealing that 17% increased in size, with some growing even after 10 years.
- The results indicate that among pGGNs stable for 10 years, 3.9% eventually grew, suggesting that a follow-up period longer than 10 years may be necessary to confirm the stability of these nodules.
Background: The best ventilator mode for patients receiving non-invasive ventilation (NIV) has not been clarified. This study compared the effectiveness of two pressure-targeted modes, i.e.
View Article and Find Full Text PDFCurrent Status of Noninvasive Ventilation Use in Korean Intensive Care Units: A Prospective Multicenter Observational Study.
Tuberc Respir Dis (Seoul)
July 2019
Article Synopsis
- Limited data exists on noninvasive ventilation (NIV) in ICUs in South Korea, prompting a study in 20 university-affiliated hospitals from June 2017 to February 2018.
- A total of 156 patients underwent NIV, primarily for acute hypercapnic respiratory failure and post-extubation failure, using oronasal masks and mechanical ventilators.
- The overall NIV success rate was 68.5%, with higher success in patients with acute hypercapnic respiratory failure compared to those with respiratory failure, indicating factors like immune status and device type affected outcomes.
Nonpulmonary risk factors of acute respiratory distress syndrome in patients with septic bacteraemia.
Korean J Intern Med
January 2019
Article Synopsis
- The study examined the link between nonpulmonary organ failure and the development of acute respiratory distress syndrome (ARDS) in septic patients by reviewing the medical records of 125 patients admitted to the ICU.
- Findings revealed that ARDS occurred in 17.6% of patients, with those who developed ARDS having a higher number of nonpulmonary organ failures at admission, particularly related to cardiovascular, CNS, and coagulation issues.
- Patients with ARDS had significantly higher mortality rates, with ARDS identified as an independent risk factor for 28-day mortality, highlighting the critical implications for patient management in sepsis cases.