Cardiology / Image of interest Blocked premature atrial contractions mimicking severe sinus bradycardia Chang Hee Kwon Korean J Intern Med. 2026;41(5):961-962.   Published online September 1, 2026 DOI: https://doi.org/10.3904/kjim.2026.083

Cardiology / Original Article Prognostic significance of artificial intelligence-quantified late gadolinium enhancement on cardiac magnetic resonance in hypertrophic cardiomyopathy Young-Sang Jeong, Jong-Il Park, Kang-Un Choi, Jong-Ho Nam, Chan-Hee Lee, Jang-Won Son, Ung Kim, Jong-Seon Park, Eunjung Kong Korean J Intern Med. 2026;41(5):884-893.   Published online September 1, 2026 DOI: https://doi.org/10.3904/kjim.2026.065                 Background/Aims: This study aimed to evaluate the prognostic value of artificial intelligence (AI)-based late gadolinium enhancement (LGE) quantification using cardiovascular magnetic resonance (CMR) in patients with hypertrophic cardiomyopathy (HCM). Methods: We retrospectively analyzed 142 patien..

Cardiology / Original Article Prognostic implications of functional significance, high-risk plaque and vessel characteristics in patients with diabetes mellitus Jin-Eun Song, Seokhun Yang, Masahiro Hoshino, Taishi Yonetsu, Jinlong Zhang, Eun-Seok Shin, Joon-Hyung Doh, Chang-Wook Nam, Jianan Wang, Shaoliang Chen, Nobuhiro Tanaka, Hitoshi Matsuo, Takashi Kubo, Hyuk-Jae Chang, Tsunekazu Kakuta, Bon-Kwon Koo Korean J Intern Med. 2026;41(5):873-883.   Published online September 1, 2026 DOI: https://doi.org/10.3904/kjim.2026.005                      Background/Aims: We investigated the prognostic value of high-risk plaque (HRP) and high-risk vessel (HRV) characteristics on coronary computed tomography angiography (CCTA) alongside fractional flow reserve (FFR) in patients with diabetes mellitus (DM). Methods: We analyzed 307 vessels from 184 dia..

Cardiology / Review Heart failure with preserved ejection fraction in women: a sex-specific clinical review Soo-Jin Kim, Mi-Seung Shin Korean J Intern Med. 2026;41(5):819-830.   Published online September 1, 2026 DOI: https://doi.org/10.3904/kjim.2026.086                 Heart failure with preserved ejection fraction (HFpEF) affects approximately half of the current heart failure population and demonstrates marked sex-related differences in pathophysiology, clinical presentation, and therapeutic response. These distinctions reflect the divergent biological pathways ..

Cardiology / Original Article Prognostic significance of 1-year versus baseline high-sensitivity C-reactive protein after acute myocardial infarction: nationwide landmark results Seok-Woo Seong, Hyun Woong Park, Jae-Hwan Lee, Jin-Ok Jeong, Mi Joo Kim, Pil Sang Song, Seon-Ah Jin, Kye Taek Ahn, Myung Ho Jeong, Sang Hyun Park, Jin-Yong Hwang; KAMIR Investigators Korean J Intern Med. 2026;41(4):690-705.   Published online July 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.382                      Background/Aims: Residual inflammatory risk after acute myocardial infarction (AMI) remains an important determinant of long-term outcomes despite optimal lipid-lowering therapy. The prognostic significance of serial high-sensitivity C-reactive protein (hs-CRP) measurements beyond the acute phase re..

Cardiology / Original Article The medical impact of emergent banning of N-nitrosodimethylamine: contaminated antihypertensive drug Juhee Ahn, Sungho Won, Jong-Heon Park, Hae-Young Lee Korean J Intern Med. 2026;41(4):676-689.   Published online July 1, 2026 DOI: https://doi.org/10.3904/kjim.2026.023                      Background/Aims: Concerns exist regarding the potential carcinogenic effect of N-nitrosodimethylamine (NDMA) as a contaminant of the antihypertensive medication, valsartan. This study evaluated the association of NDMA-contaminated valsartan with cancer incidence. Methods: Nationwide longitudinal ob..

Cardiology / Original Article Distal radial access in acute coronary syndrome patients with good arterial pulsation: a subgroup analysis from the KODRA registry Jun-Won Lee, Su Yong Kim, Jung Ho Heo, Han-Young Jin, Sung Woo Cho, Yongcheol Kim, Bong-Ki Lee, Sang-Yong Yoo, Sang Yeub Lee, Chan Joon Kim, Jin Sup Park, Do Hoi Kim, Jin Bae Lee, Dong-Kie Kim, Jun Ho Bae, Sung-Yun Lee, Seung-Hwan Lee Korean J Intern Med. 2026;41(4):663-675.   Published online July 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.349                 Background/Aims: Distal radial access (DRA) has been associated with fewer access-site complications, but evidence in acute coronary syndrome (ACS) remains limited. This study evaluated the feasibility and safety of DRA in ACS patients with good arterial pulsation. Methods: Patients with good arter..

Cardiology / Original Article Clinical outcomes of heart failure with improved ejection fraction in patients treated with angiotensin receptor–neprilysin inhibitor Dong-Eon Kim, Min Gyu Kong, Saerom Kim, Inki Moon, Hyun Woo Park, Hyung-Oh Choi, Hye Sun Seo, Yoon Haeng Cho, Nae-Hee Lee, Kwan Yong Lee, Ho-Jun Jang, Je Sang Kim, Ik Jun Choi, Jon Suh Korean J Intern Med. 2026;41(3):474-484.   Published online May 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.309                      Background/Aims: Improvement of left ventricular ejection fraction (LVEF) in heart failure with reduced ejection fraction (HFrEF) has been associated with favorable outcomes; however, corresponding data in patients treated with angiotensin receptor– neprilysin inhibitors (ARNIs) remain limited. Thi..

Cardiology / Review Transcatheter aortic valve implantation for symptomatic severe aortic stenosis and its expanding clinical indications Hyungdon Kook, Young-Hyo Lim Korean J Intern Med. 2026;41(3):373-383.   Published online February 24, 2026 DOI: https://doi.org/10.3904/kjim.2025.256                 Transcatheter aortic valve implantation (TAVI) is a minimally invasive treatment for symptomatic severe aortic stenosis (AS) that was initially developed for patients with prohibitive surgical risk. Since the first-in-human procedure in 2002, TAVI has gained global acceptance owing to its favorable ..

Cardiology / Image of interest Too much synchrony? Left bundle branch area pacing-induced systolic anterior motion and left ventricular outflow tract obstruction managed by intentional atrioventricular dyssynchrony Hyung Ki Jeong, Sung Soo Kim, Hyun Kuk Kim, Young Jae Ki, Dong Hyun Choi, Keun Ho Park Korean J Intern Med. 2026;41(2):367-368.   Published online March 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.244              Crossref 1

Cardiology / Review Pulsed field ablation: focused on atrial fibrillation ablation Hong-Ju Kim, Chan-Hee Lee Korean J Intern Med. 2026;41(2):197-209.   Published online December 4, 2025 DOI: https://doi.org/10.3904/kjim.2025.193                 Atrial fibrillation (AF) is the most common sustained tachyarrhythmia and its increasing prevalence has resulted in a growing healthcare burden. Catheter ablation is indicated for patients with AF who are either refractory or intolerant to antiarrhythmic drugs or who exhibit decreased left ventricul..

Cardiology / Editorial Uncertain benefit, certain harm: the anticoagulation paradox in hemodialysis—re-evaluation of stroke prevention and bleeding risk in end-stage kidney disease Tae-Wan Chung Korean J Intern Med. 2026;41(1):3-5.   Published online January 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.406

Cardiology / Image of interest Percutaneous retrieval of a trapped intravascular ultrasonography catheter within an implanted stent: failure and success Daeung Ohn, Yeon-Jik Choi, Junghoon Lee, Suk-Min Seo Korean J Intern Med. 2026;41(1):178-180.   Published online December 4, 2025 DOI: https://doi.org/10.3904/kjim.2025.165

Cardiology / Original Article Enhanced prediction of left ventricular ejection fraction using electrocardiography with the addition of clinical metadata Hyun Woong Park, Taeseen Kang, Young-Hoon Seo, Jae-Hyeong Park Korean J Intern Med. 2026;41(1):118-130.   Published online January 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.104              Crossref 1                      Background/Aims: Left ventricular ejection fraction (LVEF) is a key echocardiographic parameter for assessing LV systolic function, guiding the management of many cardiovascular diseases, including heart failure (HF). While traditional electrocardiography (ECG) has been widely used in clinical pract..

Cardiology / Original Article Comparative efficacy and safety of warfarin and direct oral anticoagulants in patients with end-stage kidney disease and atrial fibrillation [corrected-article] Yujin Yang, Sun Hwa Lee, Wonmook Hwang, Ji Hoon Jung, Jae-Hyeong Park Korean J Intern Med. 2026;41(1):107-117.   Published online January 1, 2026 DOI: https://doi.org/10.3904/kjim.2025.052              Crossref 1 Correction in: Korean J Intern Med 2026 9; 41(5): 965                      Background/Aims: Patients with atrial fibrillation (AF) and end-stage kidney disease (ESKD) require careful anticoagulation because thrombotic and bleeding risks are both elevated. We evaluated the efficacy and safety of warfarin, direct oral anticoagulants (DOACs), and no anticoagulation in Korean ..

Cardiology / Original Article Long-term clinical outcome and risk stratification across stages of cardiovascular-kidney-metabolic syndrome in a nationwide cohort Hyun-Jin Kim, Byung Sik Kim, Hasung Kim, Jungkuk Lee, Ha Hye Jo, Dong Wook Kim, Jeong-Hun Shin, Ki-Chul Sung Korean J Intern Med. 2025;40(6):975-989.   Published online October 28, 2025 DOI: https://doi.org/10.3904/kjim.2025.194              Web of Science 3    Crossref 4                      Background/Aims: Cardiovascular-kidney-metabolic (CKM) syndrome is a continuum of metabolic, cardiovascular, and kidney dysfunctions. This study aimed to evaluate the association between CKM stages and the risk of adverse composite clinical outcomes. Methods: This retrospective cohort study used da..

Cardiology / Original Article Association of the triglyceride-glucose index with cardiovascular outcomes across cardiovascular-kidney-metabolic syndrome stages Byung Sik Kim, Hyun-Jin Kim, Shinje Moon, Hasung Kim, Jungkuk Lee, Jeong-Hun Shin Korean J Intern Med. 2025;40(6):961-974.   Published online October 31, 2025 DOI: https://doi.org/10.3904/kjim.2025.082              Web of Science 3    Crossref 5                      Background/Aims: Cardiovascular-kidney-metabolic (CKM) syndrome reflects the interplay between metabolic dysfunction, chronic kidney disease, and cardiovascular disease. Insulin resistance (IR) is a key driver of CKM and is associated with adverse cardiovascular outcomes. The triglyceride-glucose (T..

Cardiology / Review Coagulopathy and platelet abnormalities in patients with inflammatory bowel disease Dae Sung Kim, Won Moon Korean J Intern Med. 2025;40(6):866-875.   Published online October 31, 2025 DOI: https://doi.org/10.3904/kjim.2025.118              Web of Science 6    Crossref 8                 Inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, is associated with a hypercoagulable state that increases thromboembolic complication risk. The interaction between inflammation and coagulation increases risk by upregulating coagulation factors, downregulating natu..

Cardiology / Image of interest Left main coronary artery compression associated with unfavorable thoracic anatomy Daeung Ohn, Yeon-Jik Choi, Jin-Young Yoo, Suk-Min Seo, Junghoon Lee Korean J Intern Med. 2025;40(6):1065-1067.   Published online October 31, 2025 DOI: https://doi.org/10.3904/kjim.2025.172

Cardiology / Original Article Impact of guideline-directed medical therapy on the cardiac or non-cardiac death in acute myocardial infarction Jin-Ho Choi, Dahee Hyun, Seung Ho Hur, Seung Woon Rha, Seung Jae Joo, Hyo-Soo Kim, Myung Ho Jeong; on behalf of KAMIR-NIH investigators Korean J Intern Med. 2025;40(5):780-789.   Published online August 29, 2025 DOI: https://doi.org/10.3904/kjim.2025.068              Web of Science 1    Crossref 1                      Background/Aims: While the clinical effectiveness of guideline-directed medical therapy (GDMT) is well established in patients with acute myocardial infarction (AMI), its specific impact on cause-specific mortality remains unclear. This study aimed to investigate the impact of GDMT on both cardiac a..