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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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Review
Recent advances in airway imaging using micro-computed tomography and computed tomography for chronic obstructive pulmonary disease
Naoya Tanabe, Toyohiro Hirai
Korean J Intern Med. 2021;36(6):1294-1304. Published online October 6, 2021
Chronic obstructive pulmonary disease (COPD) is a complex lung disease characterized by a combination of airway disease and emphysema. Emphysema is classified as centrilobular emphysema (CLE), paraseptal emphysema (PSE), or panlobular emphysema (PLE), and airway disease extends from the respiratory,..
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Pulmonology / Original Article
Patterns of medical care utilization according to environmental factors in asthma and chronic obstructive pulmonary disease patients
Eun-Jung Jo, Min-Hyeok Choi, Chang-Hoon Kim, Kyung-Mi Won, Yoo-Keun Kim, Ju-Hee Jeong, Hye Yeon An, Mi-Kyoung Hwang, Hye-Kyung Park
Korean J Intern Med. 2021;36(5):1146-1156. Published online February 10, 2021
Background/Aims: Weather and air pollution are associated with the exacerbation of respiratory diseases. We investigated patterns of medical care use according to meteorological factors and air pollution in patients with asthma or chronic obstructive pulmonary disease (COPD).
Methods: We analyzed t..
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Pulmonology / Original Article
Estimating the burden of nosocomial exposure to tuberculosis in South Korea, a nationwide population based cross-sectional study
Hyung Woo Kim, Jun-Pyo Myong, Ju Sang Kim
Korean J Intern Med. 2021;36(5):1134-1145. Published online December 18, 2020
Background/Aims: The aim of the study was to investigate the current nationwide burden of nosocomial exposure to tuberculosis (TB) using national health insurance claims data.
Methods: All patients who had claims for drug susceptibility testing for TB from 2012 to 2016, which indicated culture-prov..
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Pulmonology / Original Article
Upregulation of receptor tyrosine kinase-like orphan receptor 2 in idiopathic pulmonary fibrosis
Ji-Hye Son, Jong-Uk Lee, Susie Chin, Eun-Suk Go, Jai-Seong Park, Hwa-Kyun Shin, Hun Soo Chang, Jong-Sook Park, Choon-Sik Park
Korean J Intern Med. 2021;36(4):914-923. Published online September 21, 2020
Background/Aims: Receptor tyrosine kinase-like orphan receptor 2 (ROR2) is a major regulator of Wnt signaling, which is involved in fibroblast dysfunction. Because its role has not been evaluated in idiopathic pulmonary fibrosis (IPF), we examined the clinical implications of ROR2 expression.
Metho..
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Pulmonology / Original Article
Cut-off value of FEV1/FEV6 to determine airflow limitation using handheld spirometry in subjects with risk of chronic obstructive pulmonary disease
Yong Il Hwang, Youlim Kim, Chin Kook Rhee, Deog Kyeom Kim, Yong Bum Park, Kwang Ha Yoo, Ki-Suck Jung, Chang Youl Lee
Korean J Intern Med. 2021;36(3):629-635. Published online June 24, 2020
Background/Aims: Postbronchodilator forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) less than 0.7 using spirometry is the golden standard to diagnose airf low limitation of chronic obstructive pulmonary disease (COPD). Recently, measuring FEV6 has been s..
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Pulmonology / Original Article
Impact of gender on chronic obstructive pulmonary disease outcomes: a propensity score-matched analysis of a prospective cohort study
Jaeyoung Cho, Chang-Hoon Lee, Deog Kyeom Kim, Hun-Gyu Hwang, Yu-Il Kim, Hye Sook Choi, Jeong-Woong Park, Kwang Ha Yoo, Ki-Suck Jung, Sang-Do Lee; the KOLD and KOCOSS Investigators
Korean J Intern Med. 2020;35(5):1154-1163. Published online February 27, 2020
Background/Aims: Despite increasing awareness of the burden of chronic obstructive pulmonary disease (COPD) in women, knowledge regarding gender differences in COPD outcomes is limited. Therefore, we aimed to evaluate whether COPD outcomes, including exacerbations, lung function, and symptoms differ..
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Pulmonology / Original Article
Changes in chest X-ray findings in 1- and 2-month group after treatment initiation for suspected pulmonary tuberculosis
Jang Ho Lee, Ock-Hwa Kim, Yeon Joo Kim, Tae Sun Shim, Kyung-Wook Jo
Korean J Intern Med. 2020;35(5):1145-1153. Published online February 18, 2020
Background/Aims: Although re-evaluation of radiographic follow-up after 2 to 3 months of therapy is recommended for patients administered anti-tuberculosis medication owing to suspected pulmonary tuberculosis, reported findings are limited. Therefore, this study aimed to investigate changes in 1- an..
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Pulmonology / Original Article
The health-related quality-of-life of chronic obstructive pulmonary disease patients and disease-related indirect burdens
Hye Sook Choi, Dong-Wook Yang, Chin Kook Rhee, Hyoung Kyu Yoon, Jin Hwa Lee, Seong Yong Lim, Yu-Il Kim, Kwang Ha Yoo, Yong-Il Hwang, Sang Haak Lee, Yong Bum Park
Korean J Intern Med. 2020;35(5):1136-1144. Published online February 20, 2020
Background/Aims: Many chronic obstructive pulmonary disease (COPD) patients have physical limitations. We investigated EuroQol five-dimensions five-level (EQ-5D-5L) of COPD patients to assess quality of life, and assessed indirect burden including time expenditure to visit doctor, home care rate, an..
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Hemato-oncology / Original Article
Prominent seasonal variation in pulmonary embolism than deep vein thrombosis incidence: a Korean venous thrombosis epidemiology study
Junshik Hong, Ju Hyun Lee, Ji Yun Lee, Jeong-Ok Lee, Won-Il Choi, Soyeon Ahn, Youn-Hee Lim, Soo-Mee Bang, Doyeun Oh
Korean J Intern Med. 2020;35(3):682-691. Published online October 25, 2019
Background/Aims: Seasonal variation is an environmental factor proposed to affect the incidence of venous thromboembolism (VTE). However, VTE seasonal variation is not well studied in Asian populations, which have different genetic determinants of VTE compared to Westerners. The present study aimed ..
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Cardiology / Original Article
Differential clinical manifestations and clinical outcome of cancer-related pulmonary embolism
Min Sun Kim, Haseong Chang, Su Yeon Lee, Sun Hye Shin, HyeYun Park, Sung-A Chang, Taek Kyu Park, Duk-Kyung Kim, Eun Kyoung Kim
Korean J Intern Med. 2020;35(2):360-368. Published online August 9, 2019
Background/Aims: Although acute pulmonary embolism (PE) adversely impacts survival and should be treated regardless of cancer, the treatment rate of cancer-related PE is relatively low. We aimed to compare clinical characteristics and long term prognosis of PE in patients with or without cancer.
Me..
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