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Gastroenterology / Original Article
Clinical analysis of 117 cases with synchronous multiple primary esophageal squamous cell carcinomas
Zhiqin Chen, Sihan Li, Zheng He, Guang Li
Korean J Intern Med. 2021;36(6):1356-1364. Published online April 29, 2020
Background/Aims: We aimed to study the clinical characteristics, treatment modality, and the prognosis of synchronous multiple primary esophageal squamous cell carcinomas (SMPESCC).
Methods: A total of 117 SMPESCC cases were evaluated retrospectively from 2010 to 2015.
Results: The most common loc..
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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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Rheumatology / Original Article
Evaluation of body composition using computed tomography in patients with anti-neutrophil cytoplasmic antibody-associated vasculitis
Sung Soo Ahn, Byung-Woo Yoo, Hyeok Chan Kwon, Juyoung Yoo, Seung Min Jung, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
Korean J Intern Med. 2021;36(5):1221-1232. Published online August 18, 2020
Background/Aims: Measures of body composition, including visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and skeletal muscle area (SMA), are considered important prognostic factors in chronic diseases. The association of these measures with auto-inflammatory disorders, such as anti..
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Infectious diseases / Original Article
Evaluation of copper alloys for reducing infection by methicillin resistant Staphylococcus aureus and vancomycin resistant Enterococcus faecium in intensive care unit and in vitro
Sung Im Choi, Mee Soo Chang, Taeeun Kim, Kyung Hwa Chung, Seongman Bae, Sung-Han Kim, Chan Jin Yoon, Young Kyoon Kim, Jun Hee Woo
Korean J Intern Med. 2021;36(5):1204-1210. Published online August 18, 2021
Background/Aims: Multi-drug resistant pathogens are increasing among healthcare-associated infections. It is well known that copper and copper alloys have antimicrobial activity. We evaluated the activity of copper against bacteria in a hospital setting in Korea.
Methods: This study was conducted i..
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Hemato-oncology / Original Article
Risk factors for neutropenic fever in non-Hodgkin’s lymphoma patients with primary granulocyte colony-stimulating factor prophylaxis
Yu Ri Kim, Soo-Jeong Kim, Yong Park, Sung Yong Oh, Hwan-Jung Yun, Yeung-Chul Mun, Jin Seok Kim; the Korean Society of Hematology Lymphoma Working Party
Korean J Intern Med. 2021;36(5):1181-1189. Published online July 16, 2021
Background/Aims: Febrile neutropenia (FN) interferes with the proper chemotherapy dose density or intensity in non-Hodgkin’s lymphoma (NHL) patients. Chemotherapy with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) ± rituximab has an intermediate FN risk. Prophylactic granulocy..
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Nephrology / Original Article
Reduction in proteinuria after immunosuppressive therapy and long-term kidney outcomes in patients with immunoglobulin A nephropathy
Shin Chan Kang, Hyung Woo Kim, Tae Ik Chang, Ea Wha Kang, Beom Jin Lim, Jung Tak Park, Tae-Hyun Yoo, Hyeon Joo Jeong, Shin-Wook Kang, Seung Hyeok Han
Korean J Intern Med. 2021;36(5):1169-1180. Published online February 10, 2021
Background/Aims: Despite controversy regarding the benefits of immunosuppressive therapy in immunoglobulin A nephropathy (IgAN), clinical outcomes may vary depending on the patient’s responsiveness to this therapy. This study evaluated long-term kidney outcomes according to the extent of proteinur..
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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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Gastroenterology / Original Article
Clinical risk factors and pattern of initial fungal contamination in endoscopic biopsy-derived gastrointestinal cancer organoid culture
Su Youn Nam, Seung Jin Lee, Hee Jung Lim, Ji Young Park, Seong Woo Jeon
Korean J Intern Med. 2021;36(4):878-887. Published online April 8, 2021
Background/Aims: Because gastrointestinal tract is not sterile, primary culture has contamination risk despite of massive washing with antimicrobial media. Microbial contamination can play a key role in initial failure during biopsy-derived primary tumor culture.
Methods: Tumor tissue was acquired ..
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Gastroenterology / Original Article
Subclinical sacroiliitis detected by abdominopelvic computed tomography in Korean patients with Crohn’s disease
You-Jung Ha, Hyo Jin Kim, Eugene Lee, Ji Hye Park, Young Soo Park, Yun Jong Lee, Yusuhn Kang, Hyuk Yoon
Korean J Intern Med. 2021;36(4):868-877. Published online March 22, 2021
Background/Aims: Sacroiliitis is a frequent extraintestinal manifestation of inflammatory bowel diseases (IBDs). This study aimed to assess the prevalence of sacroiliitis using a validated screening tool based on abdominopelvic computed tomography (APCT) in Korean patients with Crohn’s disease (CD..
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Review
The role of inflammation in diabetic kidney disease
Su Woong Jung, Ju-Young Moon
Korean J Intern Med. 2021;36(4):753-766. Published online July 1, 2021
Diabetic kidney disease (DKD) has been the leading cause of chronic kidney disease for over 20 years. Yet, over these two decades, the clinical approach to this condition has not much improved beyond the administration of glucose-lowering agents, renin-angiotensin-aldosterone system blockers for blo..
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Rheumatology / Original Article
Clinical features of Korean elderly patients with antineutrophil cytoplasmic antibody-associated vasculitis
Byung-Woo Yoo, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
Korean J Intern Med. 2021;36(3):731-741. Published online August 20, 2020
Background/Aims: We compared the clinical and laboratory data between elderly and non-elderly patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) at diagnosis; further, we investigated the predictors at diagnosis for all-cause mortality and end-stage renal disease (E..
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Hemato-oncology / Original Article
Association between absolute lymphocyte count and overall mortality in patients with surgically resected gastric cancer
Se Jun Park, Jinsoo Lee, Hyunho Kim, Kabsoo Shin, MyungAh Lee, Jae Myung Park, Myung-Gyu Choi, Cho Hyun Park, Kyo Young Song, Han Hong Lee, In-Ho Kim
Korean J Intern Med. 2021;36(3):679-688. Published online February 19, 2021
Background/Aims: Lymphocytes are an important component of the cell-mediated immune system. As lymphopenia is reportedly associated with poor prognoses in patients with various cancers, we investigated this notion in patients who underwent curative gastrectomy.
Methods: We retrospectively analyzed ..
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Pulmonology / Original Article
Clinical impact of long-term change in air trapping on pulmonary function and computed tomography parameters in chronic obstructive pulmonary disease
Jeong Uk Lim, Jae Seung Lee, Ji-Hyun Lee, Sang-Do Lee, Yeon-Mok Oh, Chin Kook Rhee; for the Korean Obstructive Lung Disease (KOLD) Study Group
Korean J Intern Med. 2021;36(3):636-646. Published online November 25, 2020
Background/Aims: Air trapping is associated with unfavorable outcomes in chronic obstructive pulmonary disease (COPD). The present study evaluated the association between longitudinal changes in air trapping with pulmonary function, computed tomography (CT) parameters and exacerbation.
Methods: Pat..
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Review
Single-cell transcriptomics: a novel precision medicine technique in nephrology
Jisoo Kim, Jihwan Park
Korean J Intern Med. 2021;36(3):479-490. Published online March 18, 2021
Due to the complex structure and function of the kidneys, the mechanism of kidney disease is unclear. In particular, transcriptomics approaches at the bulk level are unable to differentiate primary autonomous responses, which lead to disease development, from secondary cell non-autonomous responses...
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Infectious diseases / Original Article
Comparison of antimicrobial resistances and clinical features in community-onset Escherichia coli and Klebsiella pneumoniae bacteremia
Hwa Seok Sung, Je Won Lee, Sohyun Bae, Ki Tae Kwon
Korean J Intern Med. 2021;36(2):433-440. Published online March 31, 2020
Background/Aims: The aim of this study was to compare antimicrobial resistance, clinical features, and outcomes of community-onset Escherichia coli (COEC) and Klebsiella pneumoniae (COKP) bacteremia.
Methods: The medical records of patients diagnosed with E. coli or K. pneum..
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Nephrology / Original Article
Mortality prediction of serum neutrophil gelatinase-associated lipocalin in patients requiring continuous renal replacement therapy
Yohan Park, Tae Hyun Ban, Hyung Duk Kim, Eun Jeong Ko, Jongmin Lee, Seok Chan Kim, Cheol Whee Park, Chul Woo Yang, Yong-Soo Kim, Byung Ha Chung
Korean J Intern Med. 2021;36(2):392-400. Published online July 7, 2020
Background/Aims: We investigated whether serum neutrophil gelatinase-associated lipocalin (NGAL) can predict mortality in patients with acute kidney injury (AKI) requiring continuous renal replacement therapy (CRRT).
Methods: This study enrolled 169 patients who underwent serum NGAL testing at CRRT..
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Review
Recent advances in the management of difficult bile-duct stones: a focus on single-operator cholangioscopy-guided lithotripsy
Chi Hyuk Oh, Seok Ho Dong
Korean J Intern Med. 2021;36(2):235-246. Published online December 1, 2020
The most effective and the standard treatment for bile duct stones (BDSs) is endoscopic retrograde cholangiopancreatography (ERCP). However, in 10% to 15% of patients with BDSs, the stones cannot be removed by conventional ERCP, which involves endoscopic sphincterotomy followed by balloon or basket ..
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Hemato-oncology / Original Article
Treatment outcome and prognostic factors of Korean patients with chronic lymphocytic leukemia: a multicenter retrospective study
Yunsuk Choi, Jung-Hee Lee, Chul Won Jung, Jae-Cheol Jo, Jin Seok Kim, Inho Kim, Silvia Park, June-won Cheong, Sang-Hyuk Park, Sung-Yong Kim, Hong-Ghi Lee
Korean J Intern Med. 2021;36(1):194-204. Published online April 14, 2020
Background/Aims: Compared with Western countries, chronic lymphocytic leukemia (CLL) rarely occurs in Asia and has different clinical characteristics. Thus, we aimed to evaluate the clinical characteristics, treatment outcomes, and prognostic significance of Korean patients with CLL.
Methods: We re..
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Nephrology / Original Article
Usefulness of BK virus-specific interferon-γ enzyme-linked immunospot assay for predicting the outcome of BK virus infection in kidney transplant recipients
Hyunjoo Bae, Do Hyun Na, Ji-Yeun Chang, Ki Hyun Park, Ji Won Min, Eun Jeong Ko, Hyeyoung Lee, Chul Woo Yang, Byung Ha Chung, Eun-Jee Oh
Korean J Intern Med. 2021;36(1):164-174. Published online April 3, 2020
Background/Aims: To investigate if BK virus (BKV)-specific T cell immunity measured by an interferon-γ enzyme-linked immunospot (ELISPOT) assay can predict the outcome of BK virus infection in kidney transplant recipients (KTRs). Methods: We included 68 KTRs with different viremia status (no virem..
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