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Original Article
Clinical implication and risk factor of pneumonia development in mild coronavirus disease 2019 patients
Hyun Woo Lee, Seo-Young Yoon, Jung-Kyu Lee, Tae Yeon Park, Deog Kyeom Kim, Hee Soon Chung, Eun Young Heo
Korean J Intern Med. 2021;36(1):1-10. Published online December 1, 2020
Background/Aims: Although a majority of coronavirus disease 2019 (COVID-19) cases were characterized as mild, data assessing the development of pneumonia in mild COVID-19 patients are limited. We aimed to examine the effect of pneumonia development on the clinical course of mild COVID-19 in hospital..
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Infectious diseases
The clinical and economic burden of community-onset complicated skin and skin structure infections in Korea
Yong Kyun Cho, Heung Jeong Woo, Shin Woo Kim, In-Gyu Bae, Young Goo Song, Hee Jin Cheong, Hyuck Lee, Sang Hoon Han, Hee Jung Choi, Chisook Moon, Seong Yeol Ryu, Jian Hur, Ja Cob Lee, Yu Mi Jo, Young Joo Kim
Korean J Intern Med. 2020;35(6):1497-1506. Published online February 20, 2020
Background/Aims: To investigate epidemiologic characteristics, clinical and economic burdens, and factors associated with mortality in complicated skin and skin structure infection (cSSSI) patients in Korea.
Methods: A retrospective, observational, nationwide study was conducted between April to Ju..
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Hemato-oncology
Derivation and validation of modified early warning score plus SpO2/FiO2 score for predicting acute deterioration of patients with hematological malignancies
Ju-Ry Lee, Youn-Kyoung Jung, Hwa Jung Kim, Younsuck Koh, Chae-Man Lim, Sang-Bum Hong, Jin Won Huh
Korean J Intern Med. 2020;35(6):1477-1488. Published online March 3, 2020
Background/Aims: Scoring systems play an important role in predicting intensive care unit (ICU) admission or estimating the risk of death in critically ill patients with hematological malignancies. We evaluated the modified early warning score (MEWS) for predicting ICU admissions and in-hospital mor..
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Pulmonology
Age- and sex-related characteristics of the increasing trend of nontuberculous mycobacteria pulmonary disease in a tertiary hospital in South Korea from 2006 to 2016
Youngmok Park, Chi Young Kim, Moo Suk Park, Young Sam Kim, Joon Chang, Young Ae Kang
Korean J Intern Med. 2020;35(6):1424-1431. Published online June 19, 2020
Background/Aims: The incidence rate of nontuberculous mycobacterial pulmonary disease (NTM-PD) is increasing worldwide. However, data regarding the age- and sex-specific epidemiology of NTM-PD are limited. This study aimed to investigate the long-term epidemiologic trends of NTM-PD within the recent..
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Gastroenterology
Association between high fatty liver index and development of colorectal cancer: a nationwide cohort study with 21,592,374 Korean
Yoon Jin Choi, Dong Ho Lee, Kyung-Do Han
Korean J Intern Med. 2020;35(6):1354-1363. Published online April 10, 2020
Background/Aims: In Korea, the incidence of colorectal cancer (CRC) and nonalcoholic fatty liver disease (NAFLD) has increased due to a westernized lifestyle. This study investigated whether a high fatty liver index that reflects NAFLD correlates with CRC.
Methods: Data from the National Health Ins..
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Nutritional management in patients with chronic kidney disease
Sun Moon Kim, Ji Yong Jung
Korean J Intern Med. 2020;35(6):1279-1290. Published online September 23, 2020
The global prevalence of chronic kidney disease (CKD) is increasing with the aging of populations worldwide. As kidney function declines, the accumulation of metabolic waste products and excessive electrolytes can significantly impair the health of patients with CKD. As nutritional management of pat..
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Geriatrics
Sarcopenia is associated with severe erectile dysfunction in older adults: a population-based cohort study
Hyungchul Park, Il-Young Jang, Minkyu Han, Heayon Lee, Hee-Won Jung, Eunju Lee, Dae Hyun Kim
Korean J Intern Med. 2020;35(5):1245-1253. Published online April 21, 2020
Background/Aims: Sarcopenia and erectile dysfunction (ED) are associat ed with poor health and quality of life in older men. We investigate the association between sarcopenia and severe ED in community-dwelling older men.
Methods: We prospectively assessed sarcopenia and ED in 519, community-dwelli..
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Allergy
N-acetylcysteine decreases airway inflammation and responsiveness in asthma by modulating claudin 18 expression
Pureun-Haneul Lee, Jisu Hong, An-Soo Jang
Korean J Intern Med. 2020;35(5):1229-1237. Published online February 28, 2020
Background/Aims: N-acetylcysteine (NAC) affects signaling pathways involved in apoptosis, angiogenesis, cell growth and arrest, redox-regulated gene expression, and the inflammatory response. However, it is not known how the signal mechanism for tight junctional protein claudin (CLDN) 18 is regulate..
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Infectious diseases
Mediation effect of herpes zoster derived by statin use on cardiovascular disease risk
Sung-Han Kim, Sung-Cheol Yun, Young-Ho Khang, Min-Chul Kim, Sun Uck Kwon, Gyung-Min Park, Young-Rak Cho, Kwang Min Lee, Moo Hyun Kim
Korean J Intern Med. 2020;35(5):1220-1228. Published online June 19, 2020
Background/Aims: Although statins are widely used to reduce the risk of cardiovascular disease (CVD) including stroke and myocardial infarction (MI), it is reported that statin use increases the incidence of herpes zoster (HZ) that is associated with increased risk of CVD. So, we evaluated the media..
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Hemato-oncology
The role of platelet function analyzer-200 in predicting perioperative bleeding risk
Eun Sang Yu, Min Ji Jeon, Ka-Won Kang, Byung-Hyun Lee, Eun Joo Kang, Yong Park, Se Ryeon Lee, Hwa Jung Sung, Chul Won Choi, Byung Soo Kim, Dae Sik Kim
Korean J Intern Med. 2020;35(5):1199-1209. Published online February 6, 2020
Background/Aims: Various preoperative screening tests, such as platelet count, prothrombin time, activated partial thromboplastin time, and bleeding time, have been widely used to evaluate the risk of bleeding during surgery. Use of platelet function analyzer (PFA)-100/200 for assessing platelet fun..
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Endocrinology-metabolism
The clinical meaning of pre- and post-ablation thyroglobulin levels at first radioiodine therapy in patients with papillary thyroid cancer
Hee Kyung Kim, Jee Hee Yoon, Jin Seong Cho, Seong Young Kwon, Su Woong Yoo, Ho-Cheol Kang
Korean J Intern Med. 2020;35(5):1164-1172. Published online July 29, 2019
Background/Aims: This study was conducted to identify prognostic factors in patients with papillary thyroid cancer (PTC) at the time of first radioactive iodine (RAI) therapy, and to evaluate the clinical value of the thyroglobulin (Tg) increase after RAI.
Methods: Serum Tg was sampled prior to (pr..
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Pulmonology
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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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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Gastroenterology
Impact of early anti-TNF use on clinical outcomes in Crohn’s disease: a nationwide population-based study
Yoon Suk Jung, Minkyung Han, Sohee Park, Jae Hee Cheon
Korean J Intern Med. 2020;35(5):1104-1113. Published online April 21, 2020
Background/Aims: The optimal timing for initiation of anti-tumor necrosis factor (TNF) therapy in Crohn’s disease (CD) is still debated. Little is known about the clinical outcomes of early versus late administration of anti-TNF agents, especially in Asian CD patients. We aimed to evaluate the imp..
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Impact of previous metronidazole exposure on metronidazole-based second-line quadruple therapy for Helicobacter pylori infection
Gil Ho Lee, Kee Myung Lee, Sung Jae Shin, Joon Koo Kang, Choong-Kyun Noh, Jin Hong Kim, Sun Gyo Lim
Korean J Intern Med. 2020;35(5):1094-1103. Published online July 31, 2020
Background/Aims: The negative effects on the eradication success of Helicobacter pylori infection after previous exposure to macrolides, including clarithromycin on clarithromycin-based first-line therapy have been demonstrated. However, whether this is true for metronidazole-based second-lin..
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Proton pump inhibitor use is associated with hip fracture development: a nationwide population-based cohort study
Yang Won Min, Yeong Chan Lee, Kyunga Kim, Seungho Ryu, Kyoung Sub Hong, Han Ho Jeon, Yong Sung Kim, Jong Heon Park, Hee Jung Son, Poong-Lyul Rhee
Korean J Intern Med. 2020;35(5):1084-1093. Published online November 4, 2019
Background/Aims: Effect of proton pump inhibitor (PPI) use on the risk of hip fracture is controversial. This study aimed to clarify the association between PPI use and hip fracture risk using a large cohort.
Methods: This study recruited participants from the nationwide cohort (n = 1,025,340). Aft..
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Hemato-oncology
Immature platelet fraction based diagnostic predictive scoring model for immune thrombocytopenia
Min Ji Jeon, Eun Sang Yu, Ka-Won Kang, Byung-Hyun Lee, Yong Park, Se Ryeon Lee, Hwa Jung Sung, Soo Yong Yoon, Chul Won Choi, Byung Soo Kim, Dae Sik Kim
Korean J Intern Med. 2020;35(4):970-978. Published online April 10, 2020
Background/Aims: The diagnosis of immune thrombocytopenia (ITP) is based on clinical manifestations and there is no gold standard. Thus, even hematologic malignancy is sometimes misdiagnosed as ITP and adequate treatment is delayed. Therefore, novel diagnostic parameters are needed to distinguish IT..
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Endocrinology-metabolism
Predictive costs in medical care for Koreans with metabolic syndrome from 2009 to 2013 based on the National Health Insurance claims dataset
Jeong Seon Yoo, Eun Yeong Choe, Yoo Mee Kim, Se Hwa Kim, Young Jun Won
Korean J Intern Med. 2020;35(4):936-945. Published online August 19, 2019
Background/Aims: Although metabolic syndrome has been associated with increasing medical costs worldwide, there have been no studies using a nationwide and longitudinal South Korean dataset. We investigated trends in subsidized medical costs among Korean adults with metabolic syndrome.
Methods: Thi..
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Cardiology
Clinical significance of postoperative atrial arrhythmias in patients who underwent lung transplantation
Byung Gyu Kim, Jae-Sun Uhm, Pil-Sung Yang, Hee Tae Yu, Tae-Hoon Kim, Boyoung Joung, Hui-Nam Pak, Song Yee Kim, Moo Suk Park, Jin Gu Lee, Hyo Chae Paik, Moon-Hyoung Lee
Korean J Intern Med. 2020;35(4):897-905. Published online November 25, 2019
Background/Aims: Atrial arrhythmia (AA) occasionally occurs after lung transplantation (LT); however, risk factors for AA and their impact on clinical outcomes are inconsistent. We aimed to investigate the incidence, predisposing factors, and clinical outcomes of AA after LT.
Methods: We retrospect..
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Guideline
Consensus statement on coronary intervention during the coronavirus disease 19 pandemic: from the Korean Society of Interventional Cardiology
Kwan Yong Lee, Bong-Ki Lee, Won-Jang Kim, Se Hun Kang, Taek Kyu Park, Song-Yi Kim, Jung-Won Suh, Chang-Hwan Yoon, Dong Heon Yang, Sung Kee Ryu, Sang-Hyun Kim, Sung Yun Lee, In-Ho Chae; The Korean Society of Interventional Cardiology COVID-19 Task Force Team
Korean J Intern Med. 2020;35(4):749-757. Published online July 1, 2020
Coronavirus disease 2019 (COVID-19) is a highly contagious disease caused by the novel virus severe acute respiratory syndrome coronavirus 2. The first case developed in December, 2019 in Wuhan, China; several months later, COVID-19 has become pandemic, and there is no end in sight. This disaster is..
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