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Pulmonology / Review
Current perspectives on interstitial lung abnormalities
Ju Hyun Oh, Jin Woo Song
Korean J Intern Med. 2025;40(2):208-218. Published online March 1, 2025
Interstitial lung abnormalities (ILAs) are early indicators of interstitial lung disease, often identified incidentally via computed tomography of the chest. This review explores the diagnostic criteria for ILAs as outlined by the Fleischner Society, highlights associated risk factors, examines thei..
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Pulmonology / Original Article
Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
Chin Kook Rhee, Yu-Fan Ho, Sumitra Shantakumar, Tim Holbrook, Yein Nam, Kwang‑Ha Yoo
Korean J Intern Med. 2025;40(1):78-91. Published online January 1, 2025
Background/Aims: Chronic obstructive pulmonary disease (COPD) management guidelines have increasingly emphasised the importance of exacerbation prevention, and the role of blood eosinophil count (BEC) as a biomarker for inhaled corticosteroids (ICS) response. This study aimed to describe the distrib..
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Cardiology / Original Article
Predictive value and optimal cut-off level of high-sensitivity troponin T in patients with acute pulmonary embolism
Moojun Kim, Chang-Ok Seo, Yong-Lee Kim, Hangyul Kim, Hye Ree Kim, Yun Ho Cho, Jeong Yoon Jang, Jong-Hwa Ahn, Min Gyu Kang, Kyehwan Kim, Jin-Sin Koh, Seok-Jae Hwang, Jin Yong Hwang, Jeong Rang Park
Korean J Intern Med. 2025;40(1):65-77. Published online January 1, 2025
Background/Aims: Elevated troponin levels predict in-hospital mortality and influence decisions regarding thrombolytic therapy in patients with acute pulmonary embolism (PE). However, the usefulness of high-sensitivity troponin T (hsTnT) regarding PE remains uncertain. We aimed to establish the opti..
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Pulmonology / Original Article
Mechanical ventilation in patients with idiopathic pulmonary fibrosis in Korea: a nationwide cohort study
Jae Kyeom Sim, Seok Joo Moon, Juwhan Choi, Jee Youn Oh, Young Seok Lee, Kyung Hoon Min, Gyu Young Hur, Sung Yong Lee, Jae Jeong Shim
Korean J Intern Med. 2024;39(2):295-305. Published online February 8, 2024
Background/Aims: The prognosis of patients with idiopathic pulmonary fibrosis (IPF) and respiratory failure requiring mechanical ventilation is poor. Therefore, mechanical ventilation is not recommended. Recently, outcomes of mechanical ventilation, including those for patients with IPF, have improv..
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Pulmonology / Original Article
Sex differences in chronic obstructive pulmonary disease characteristics: the Korea National Health and Nutrition Examination Survey 2007–2018
Moon Seong Baek, Haegwang Shin, Kang-Mo Gu, Hae In Jung, Won Young Kim, Jae-Woo Jung, Jong-Wook Shin, Sun-Young Jung, Jae-Yeol Kim
Korean J Intern Med. 2024;39(1):137-147. Published online December 14, 2023
Background/Aims: Chronic obstructive pulmonary disease (COPD) is less prevalent in females than males, but it affects mortality in females. There may be sex differences in the clinical characteristics of COPD.
Methods: We analyzed the Korea National Health and Nutrition Examination Survey dataset f..
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Pulmonology / Review
Biomarkers of the relationship of particulate matter exposure with the progression of chronic respiratory diseases
Junghyun Kim, Soo Jie Chung, Woo Jin Kim
Korean J Intern Med. 2024;39(1):25-33. Published online January 1, 2024
A high level of particulate matter (PM) in air is correlated with the onset and development of chronic respiratory diseases. We conducted a systematic literature review, searching the MEDLINE, EMBASE, and Cochrane databases for studies of biomarkers of the effect of PM exposure on chronic respirator..
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Pulmonology / Review
Long term management of people with post-tuberculosis lung disease
Wan Seo, Hyung Woo Kim, Ju Sang Kim, Jinsoo Min
Korean J Intern Med. 2024;39(1):7-24. Published online January 1, 2024
Post-tuberculosis lung disease (PTLD) is emerging as a significant area of global interest. As the number of patients surviving tuberculosis (TB) increases, the subsequent long-term repercussions have drawn increased attention due to their profound clinical and socioeconomic impacts. A primary obsta..
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Cardiology / Original Article
Exercise capacity and risk of incident atrial fibrillation in healthy adults
Ju Youn Kim, Soo Jin Cho, Juwon Kim, Tae-Wan Chung, Seung-Jung Park, Kyoung-Min Park, June Soo Kim, Young Keun On
Korean J Intern Med. 2023;38(6):872-878. Published online November 1, 2023
Background/Aims: Atrial fibrillation (AF) is a common arrhythmia and is associated with cardiovascular morbidity and mortality. It is important to identify and control the modifiable risk factors of AF. We aimed to examine the association of exercise capacity with the risk of incident AF within 3 ye..
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Pulmonology / Original Article
The serotype-specific prevalence of pneumococci in hospitalized pneumonia patients with COPD: a prospective, multi-center, cohort study
Jae Yeol Kim, Jae-Woo Jung, Min-Jong Kang, Deog Kyeom Kim, Hayoung Choi, Young-Jae Cho, Seung Hun Jang, Chang-Hoon Lee, Yeon Mok Oh, Ji Sook Park
Korean J Intern Med. 2023;38(5):714-724. Published online August 17, 2023
Background/Aims: The overall incidence of pneumococcal pneumonia is declining. However, the change in the pathogenic distribution of community-acquired pneumonia (CAP) in chronic obstructive pulmonary disease (COPD) patients and the serotype specificity of Streptococcus pneumoniae have not be..
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Cardiology / Review
Role of echocardiography in acute pulmonary embolism
Jin Kyung Oh, Jae-Hyeong Park
Korean J Intern Med. 2023;38(4):456-470. Published online January 2, 2023
Although pulmonary embolism (PE)-related mortality rate has decreased because of prompt diagnosis and effective therapy use, acute PE remains a potentially lethal disease. Due to its increasing prevalence, clinicians should pay attention to diagnosing and managing patients with acute PE. Echocardiog..
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Pulmonology / Original Article
Granulocyte colony-stimulating factor in bronchoalveolar lavage fluid is a potential biomarker for prognostic prediction of idiopathic pulmonary fibrosis
Jong-Uk Lee, Jae Sung Choi, Min Kyung Kim, Sun A Min, Jong-Sook Park, Choon-Sik Park
Korean J Intern Med. 2022;37(5):979-988. Published online June 22, 2022
Background/Aims: Neutrophilia is frequently observed in bronchoalveolar lavage fluid (BALF) of idiopathic pulmonary fibrosis (IPF) patients. Granulocyte colony-stimulating factor (G-CSF) is a potent neutrophil-activating glycoprotein. However, the clinical implications of G-CSF remain poorly underst..
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Infectious diseases / Original Article
Risk factors and clinical impact of COVID-19-associated pulmonary aspergillosis: Multicenter retrospective cohort study
Raeseok Lee, Sung-Yeon Cho, Dong-Gun Lee, Hyojin Ahn, Hyeah Choi, Su-Mi Choi, Jae-Ki Choi, Jung-Hyun Choi, Shin Young Kim, Youn Jeong Kim, Hyo-Jin Lee
Korean J Intern Med. 2022;37(4):851-863. Published online May 26, 2022
Background/Aims: The risk factors and clinical impacts of coronavirus disease 2019 (COVID-19)-associated pulmonary aspergillosis (CAPA) remain controversial, and no data have been reported in Korea. This study aimed to investigate the epidemiology and importance of CAPA diagnostic efforts and to ide..
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Pulmonology / Original Article
Acute exacerbation of COPD increases the risk of hip fractures: a nested case-control study from the Korea National Health Insurance Service
Kang-Mo Gu, Sang-Won Yoon, Sun-Young Jung, Moon Seong Baek, Won Young Kim, Jae-Woo Jung, Jae-Chol Choi, Jong-Wook Shin, Jae-Yeol Kim, Byoung-Whui Choi, In-Won Park
Korean J Intern Med. 2022;37(3):631-638. Published online February 8, 2022
Background/Aims: Hip fracture and acute exacerbation of chronic obstructive pulmonary disease (AE-COPD) could increase mortality in patients with COPD. There are no data on the relationship between AE-COPD and hip fracture, which may significantly affect the prognosis of patients with COPD. Therefor..
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Pulmonology / Original Article
Prevalence and impact of airway diseases on clinical outcomes in idiopathic pulmonary fibrosis
Heemoon Park, Jaeyoung Cho, Jinwoo Lee, Young Sik Park, Chang-Hoon Lee, Sang-Min Lee, Chul-Gyu Yoo, Young Whan Kim, Sung Koo Han, Sun Mi Choi
Korean J Intern Med. 2022;37(2):387-397. Published online December 7, 2021
Background/Aims: The prevalence and effects of airway diseases, including asthma, eosinophilic bronchitis (EB), chronic obstructive pulmonary disease (COPD), and asthma-COPD overlap (ACO) have not been thoroughly studied in patients with idiopathic pulmonary fibrosis (IPF). This study aimed to evalu..
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Pulmonology / Original Article
Diagnostic index for acute eosinophilic pneumonia without bronchoscopy in military smokers
Sunmin Park, Deokjae Han, Ji Eun Lee, Duck Hyun Ryu, Hyung-Jun Kim
Korean J Intern Med. 2022;37(2):377-386. Published online December 16, 2021
Background/Aims: Acute eosinophilic pneumonia (AEP) is common among military smokers; however, bronchoscopy is required for the diagnosis. We aimed to derive and validate a scoring system to diagnose AEP without bronchoscopy.
Methods: We conducted a retrospective study including patients diagnosed ..
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Pulmonology / Original Article
Efficacy of lower dose pirfenidone for idiopathic pulmonary fibrosis in real practice: a retrospective cohort study
Hyeontaek Hwang, Jung-Kyu Lee, Sun Mi Choi, Yeon Joo Lee, Young-Jae Cho, Ho Il Yoon, Jae Ho Lee, Choon-Taek Lee, Young Whan Kim, Jong Sun Park
Korean J Intern Med. 2022;37(2):366-376. Published online July 27, 2021
Background/Aims: Pirfenidone slows the progression of idiopathic pulmonary fibrosis (IPF). We investigated its efficacy and safety in terms of dose and disease severity in real-world patients with IPF.
Methods: This multicenter retrospective cohort study investigated 338 patients treated with pirfe..
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Pulmonology / Original Article
Korean physician prescription patterns for home oxygen therapy in chronic obstructive pulmonary disease patients
Youlim Kim, Hwan Il Kim, Ji Young Park, Ji Young Hong, Joo-Hee Kim, Kyung Hoon Min, Chin Kook Rhee, Sunghoon Park, Chang Youl Lee, Seong Yong Lim, Seung Hun Jang, Yong Il Hwang
Korean J Intern Med. 2022;37(1):119-126. Published online August 20, 2021
Background/Aims: Hypoxemia in chronic obstructive pulmonary disease (COPD) leads to reduced ability to exercise, decreased quality of life, and, eventually, increased mortality. Home oxygen therapy in patients with severe COPD reduces distress symptoms and mortality rates. However, there have been fe..
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Pulmonology / Original Article
In vivo therapeutic success of MicroRNA-155 antagomir in a mouse model of pulmonary fibrosis induced by bleomycin
Xiaoyuan Sun, Yu Kang, Shan Xue, Jing Zou, Jiabo Xu, Daoqiang Tang, Hui Qin
Korean J Intern Med. 2021;36(Suppl 1):S160-S169. Published online June 9, 2020
Background/Aims: MicroRNAs (miRNAs) play critical regulatory roles in the pathogenesis of pulmonary fibrosis. The aim of this study was to explore whether miRNA antagomirs could serve as potential therapeutic agents in interstitial lung diseases.
Methods: A mouse model of pulmonary fibrosis was est..
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Pulmonology / Original Article
Pleuroparenchymal fibroelastosis in Korean patients: clinico-radiologic-pathologic features and 2-year follow-up
Jae Ha Lee, Eun Jin Chae, Joon Seon Song, Miae Kim, Jin Woo Song
Korean J Intern Med. 2021;36(Suppl 1):S132-S141. Published online February 24, 2020
Background/Aims: Pleuroparenchymal fibroelastosis (PPFE) is a type of rare idiopathic interstitial pneumonia that is characterized by predominantly upper lobe involvement with pleural fibrosis and subjacent parenchymal fibrosis. This study aimed to determine the clinico-radiologic-pathologic feature..
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Review
Eosinophilic endotype of chronic obstructive pulmonary disease: similarities and differences from asthma
Andrew Li, Hiang Ping Chan, Phyllis X.L. Gan, Mei Fong Liew, W.S. Fred Wong, Hui-Fang Lim
Korean J Intern Med. 2021;36(6):1305-1319. Published online October 12, 2021
Approximately 25% to 40% of patients with chronic obstructive pulmonary disease (COPD) have the eosinophilic endotype. It is important to identify this group accurately because they are more symptomatic and are at increased risk for exacerbations and accelerated decline in forced expiratory volume i..
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