Jung Hee Koh, Youngjae Park, Jennifer Lee, Howook Jeon, Su-Jin Moon, Yong Hyun Kim, Jun-Ki Min, Sung-Hwan Park, Seung-Ki Kwok
{"title":"Long-term outcome of interstitial lung disease in patients with primary Sjögren's syndrome: a retrospective observational study.","authors":"Jung Hee Koh, Youngjae Park, Jennifer Lee, Howook Jeon, Su-Jin Moon, Yong Hyun Kim, Jun-Ki Min, Sung-Hwan Park, Seung-Ki Kwok","doi":"10.3904/kjim.2023.402","DOIUrl":"10.3904/kjim.2023.402","url":null,"abstract":"<p><strong>Background/aims: </strong>Interstitial lung disease (ILD) is a potentially serious but underdiagnosed manifestation of primary Sjögren's syndrome (pSS). This observational study investigated the prevalence and clinical course of ILD in pSS, together with prognostic factors.</p><p><strong>Methods: </strong>A multicenter, retrospective longitudinal study was performed using findings from baseline and follow-up pulmonary function tests and chest computed tomography. Predisposing factors for the development of ILD and acute exacerbation (AE) were identified using a logistic regression model. The risk factors for a significant decline of pulmonary function were determined by the Cox proportional hazard model.</p><p><strong>Results: </strong>A total of 1,306 patients with pSS were included in this study (female, 98%; mean age, 54 years). Among them, 79 patients with pSS were comorbid with ILD. ILD was more frequently found in male, older patients. Nonspecific interstitial pneumonia was the most prevalent imaging pattern in pSS-ILD (51%), followed by usual interstitial pneumonia (22%). At diagnosis with pSS-ILD, 54% of patients had restrictive pulmonary function, and 41% of patients initiated pharmacological treatment. During the median 4-year follow-up period, AE, a significant decline in pulmonary function, and death occurred in 19%, 29%, and 9% of patients with pSS-ILD, respectively. The neutrophil-to-lymphocyte ratio (NLR) increased 3 months prior to AE, and it was associated with AE. Older age at pSS-ILD diagnosis was a prognostic factor for a significant decline in pulmonary function.</p><p><strong>Conclusion: </strong>ILD accounted for 6% of the comorbidity of pSS. AE was associated with a significant decline in pulmonary function, and the NLR may predict AE.</p>","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":" ","pages":"148-159"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11725482/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142511042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Deep appreciation to our reviewers in the past year.","authors":"","doi":"10.3904/kjim.2024.411","DOIUrl":"10.3904/kjim.2024.411","url":null,"abstract":"","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":"40 1","pages":"2"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11725477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stability, variability, and treatment implications of the blood eosinophil count in Korean patients with chronic obstructive pulmonary disease.","authors":"Hyun Woo Lee","doi":"10.3904/kjim.2024.386","DOIUrl":"10.3904/kjim.2024.386","url":null,"abstract":"","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":"40 1","pages":"5-6"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11725472/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data.","authors":"Chin Kook Rhee, Yu-Fan Ho, Sumitra Shantakumar, Tim Holbrook, Yein Nam, Kwang-Ha Yoo","doi":"10.3904/kjim.2024.034","DOIUrl":"10.3904/kjim.2024.034","url":null,"abstract":"<p><strong>Background/aims: </strong>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 distribution and stability of BEC and understand real-world treatment patterns among COPD patients in South Korea.</p><p><strong>Methods: </strong>This was a retrospective database analysis using data obtained from the KOrea COPD Subgroup Study (KOCOSS) registry between January 2012 and August 2018. KOCOSS is an ongoing, longitudinal, prospective, multi-centre, non-interventional study investigating early COPD amongst South Korean patients. BEC stability was assessed by calculating the intra-class correlation (ICC) coefficient. \"Exacerbators\" were patients who had a record of ≥ 1 exacerbation in the 12 months prior to the visit.</p><p><strong>Results: </strong>The study included 2,661 patients with a mean age of 68.6 years. Most patients were male (92.0%). Mean BEC was significantly higher in exacerbators compared to non-exacerbators. Patients with ≥ 2 exacerbations at baseline had a less stable BEC over time (ICC = 0.44) compared to non-exacerbators (ICC = 0.57). Patients with BEC ≥ 300 cells/μL at baseline predominantly received triple therapy (43.8%).</p><p><strong>Conclusion: </strong>This study may further develop current understanding on BEC profiles amongst COPD patients in South Korea. BEC measurements are stable and reproducible among COPD patients, which supports its use as a potential biomarker.</p>","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":"40 1","pages":"78-91"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11725469/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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
{"title":"Predictive value and optimal cut-off level of high-sensitivity troponin T in patients with acute pulmonary embolism.","authors":"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","doi":"10.3904/kjim.2024.131","DOIUrl":"10.3904/kjim.2024.131","url":null,"abstract":"<p><strong>Background/aims: </strong>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 optimal cut-off level and compare its performance for precise risk stratification.</p><p><strong>Methods: </strong>374 patients diagnosed with acute PE were reviewed. PE-related adverse outcomes, a composite of PE-related deaths, cardiopulmonary resuscitation incidents, systolic blood pressure < 90 mmHg, and all-cause mortality within 30 days were evaluated. The optimal hsTnT cut-off for all-cause mortality, and the net reclassification index (NRI) was used to assess the incremental value in risk stratification.</p><p><strong>Results: </strong>Among 343 normotensive patients, 17 (5.0%) experienced all-cause mortality, while 40 (10.7%) had PE-related adverse outcomes. An optimal hsTnT cut-off value of 60 ng/L for all-cause mortality (AUC 0.74, 95% CI 0.61-0.85, p < 0.001) was identified, which was significantly associated with PE-related adverse outcomes (OR 4.07, 95% CI 2.06-8.06, p < 0.001). Patients with hsTnT ≥ 60 ng/L were older, hypotensive, had higher creatinine levels, and right ventricular dysfunction signs. Combining hsTnT ≥ 60 ng/L with simplified pulmonary embolism severity index ≥1 provided additional prognostic information. Reclassification analysis showed a significant shift in risk categories, with an NRI of 1.016 ± 0.201 (p < 0.001).</p><p><strong>Conclusion: </strong>We refined troponin's predictive value in patients with acute PE, proposing a new cut-off value of hsTnT ≥ 60 ng/L. Validation through large-scale studies is essential to offer clinically useful guidance for managing patient population.</p>","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":"40 1","pages":"65-77"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11725470/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142957315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ah-Young Kim, Min-Jeong Lee, Heejung Choi, Hankil Lee, Inwhee Park
{"title":"Kidney replacement therapy trends in end-stage kidney disease patients in South Korea during the COVID-19 pandemic.","authors":"Ah-Young Kim, Min-Jeong Lee, Heejung Choi, Hankil Lee, Inwhee Park","doi":"10.3904/kjim.2024.052","DOIUrl":"10.3904/kjim.2024.052","url":null,"abstract":"<p><strong>Background/aims: </strong>The corona virus disease 2019 posed a major risk for end-stage kidney disease (ESKD) cases. Our study aimed to assess changes in kidney replacement therapy (KRT) trends and healthcare access for these patients during the pandemic.</p><p><strong>Methods: </strong>We retrospectively analyzed nationwide data from July 2017 to June 2022 to assess changes in KRT and ESKD incidence. KRT modalities included peritoneal dialysis (PD), hemodialysis (HD), and kidney transplantation (KT). We utilized the interrupted time series (ITS) method to compare changes in KRT modality before and after the incidence of the COVID-19 pandemic.</p><p><strong>Results: </strong>ESKD incidence remained stable from 2018 to April 2022. The ITS analysis confirmed that the pandemic did not significant impact overall KRT incidence. PD cases decreased (5.7% to 1.3%), while HD cases increased (81.6% to 85%), and KT recipient remained relatively stable (12.7% to 17.3%). The hospitalization and hospital stay decreased in nursing hospital (165.01 days to 147.77 days) and general hospital (61.34 days to 55.58 days) during the pandemic, however, remained unchanged for PD and KT.</p><p><strong>Conclusion: </strong>Our findings indicate no significant changes in ESKD incidence in South Korea during the pandemic. However, there were shifts in modality distribution, with decreased PD and increased HD cases. Notably, HD cases showed a significant reduction in hospital admissions and length of stay. The healthcare system demonstrated stability during the pandemic, with minimal disruptions in ESKD care.</p>","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":" ","pages":"967-978"},"PeriodicalIF":2.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569916/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142511040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Systemic venous air embolism after percutaneous lung biopsy.","authors":"Min Kyung Jung, Shin Young Kim, Jeong Min Ko","doi":"10.3904/kjim.2024.114","DOIUrl":"10.3904/kjim.2024.114","url":null,"abstract":"","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":" ","pages":"1021-1022"},"PeriodicalIF":2.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Byung Hwa Park, Song Yi Kil, Ye Na Kim, Ho Sik Shin, Yeonsoon Jung, Hark Rim
{"title":"Kidney transplantation in the elderly.","authors":"Byung Hwa Park, Song Yi Kil, Ye Na Kim, Ho Sik Shin, Yeonsoon Jung, Hark Rim","doi":"10.3904/kjim.2024.089","DOIUrl":"10.3904/kjim.2024.089","url":null,"abstract":"<p><p>Interest in kidney transplant studies in the elderly population is increasing as more research has been conducted on the immune system. With this review, we hope to encourage the need for research on kidney transplantation in the elderly.</p>","PeriodicalId":48785,"journal":{"name":"Korean Journal of Internal Medicine","volume":" ","pages":"875-881"},"PeriodicalIF":2.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142511041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}