Publications by authors named "Sang Hyun Ihm"

Aims: Hypertrophic cardiomyopathy (HCM) is associated with a significant risk of arrhythmia and heart failure (HF), yet treatment options for patients with HCM have remained limited. We aimed to investigate the relationship between sodium-glucose cotransporter-2 inhibitor (SGLT2i) use and clinical outcomes among patients with concurrent HCM and diabetes in real-world settings.

Methods And Results: Using the Korean National Health Insurance Service database, we identified patients with a confirmed diagnosis of HCM and prescriptions for antidiabetic drugs from 2018 to 2022.

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This study aimed to investigate the characteristics of out-of-office blood pressure (BP) measurements in patients with apparent treatment-resistant hypertension (aRH) enrolled from 15 tertiary care centers in South Korea. aRH was defined as having uncontrolled office BP ≥ 130/80 mmHg despite receiving three classes of antihypertensive medication or any level of BP despite receiving ≥4 classes of antihypertensive medication. Patients with complete data for office BP, 24-h ambulatory BP monitoring (ABPM), and home BP measurements at baseline were included.

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The aim of this study was to evaluate the efficacy of olmesartan/amlodipine (OLM/AML) single-pill combination (SPC) therapy using ambulatory blood pressure monitoring (ABPM) in non-responders to valsartan or candesartan monotherapy. Isolated systolic hypertension (ISH) is the most prevalent form of hypertension in middle-aged and elderly individuals. Patients aged over 55 years who did not achieve the target systolic blood pressure (SBP < 140 mmHg) with valsartan 80 mg or candesartan 8 mg for at least 4 weeks were included.

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Obesity is the one of the most important components of metabolic syndrome. Because obesity related hypertension accounts for two thirds of essential hypertension, managing obesity and metabolic syndrome is a crucial task in the management of hypertension. However, the current non-pharmacological therapies have limitations for achieving or maintaining ideal body weight.

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Aims: Cardiovascular health is acknowledged as a crucial concern among cancer survivors. Socioeconomic status (SES) is an essential but often neglected risk factor for cardiovascular disease (CVD). We conducted this study to identify the relationship between SES and CVD mortality in cancer survivors.

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Article Synopsis
  • The study evaluated the effectiveness and tolerability of combining irbesartan (IRB) and amlodipine (AML) in treating essential hypertension when IRB alone was insufficient.
  • Two phase III clinical trials in Korea involved 428 patients and compared combinations of IRB/AML to placebo over 8 weeks, focusing on changes in mean sitting systolic blood pressure (MSSBP).
  • Results showed significant reductions in MSSBP in the combination groups compared to monotherapy, with adverse events occurring in a small percentage of participants, indicating the combined therapy was both effective and tolerable.
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This study evaluated an oscillometric device (OD), Microlife WatchBP Office AFIB, and a hybrid manual auscultatory device (AD), Greenlight 300TM, to determine a suitable blood pressure (BP) measurement device for the Korea National Health and Nutrition Examination Survey in a mercury-free context. Adhering to the 2018 Universal Standard's suggested consensus, the study involved 800 subjects (mean age 51.2 ± 17.

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This study aimed to compare and evaluate the efficacy of the blood pressure (BP) control and cholesterol-lowering effects and safety of combination therapy with telmisartan, rosuvastatin, and ezetimibe versus rosuvastatin and ezetimibe double therapy or telmisartan single therapy in dyslipidemia patients with hypertension. After a wash-out/therapeutic lifestyle change period of ≥4 weeks, a total of 100 eligible patients were randomized and received one of three treatments for 8 weeks: (1) telmisartan 80 mg/rosuvastatin 20 mg/ezetimibe 10 mg (TRE), (2) rosuvastatin 20 mg/ezetimibe 10 mg (RE), or (3) telmisartan 80 mg (T). The primary endpoint was the efficacy evaluation of TRE by comparing changes in mean sitting systolic blood pressure (msSBP) and mean percentage change in low-density lipoprotein-C (LDL-C) from baseline after 8 weeks of treatment.

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Although reports vary, the prevalence of true resistant hypertension and apparent treatment-resistant hypertension (aTRH) has been reported to be 10.3% and 14.7%, respectively.

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Accurate blood pressure (BP) measurement is crucial for hypertension detection and management. The Korea National Health and Nutrition Examination Survey (KNHANES) assesses the health of Koreans using representative cross-sectional data. BP measurements were historically done with mercury sphygmomanometers for participants aged ≥10 years.

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Article Synopsis
  • SGLT2 inhibitors (SGLT2is) have been linked to better cardiovascular health and lower rates of atrial fibrillation (AF) in type 2 diabetes patients.
  • A study analyzed data from 11,012 patients with both AF and diabetes to compare outcomes between those using SGLT2is and those who weren't, resulting in significant findings favoring SGLT2i users.
  • The results revealed a lower incidence of death or heart failure hospitalizations for SGLT2i users compared to non-users, along with reduced adverse renal events.
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Purpose Of Review: Hypertension is a condition characterized by increased sympathetic activity and the autonomic nervous system. Resistant hypertension, a condition with a prevalence of 10% to 20% in the general hypertensive population, is more likely to experience poor outcomes and adverse cardiovascular events. Renal sympathetic denervation (RDN), a minimally invasive, catheter-based percutaneous intervention, has been considered for treating this condition.

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Nocturnal blood pressure (BP) has been shown to have a significant predictive value for cardiovascular disease. In some cases, it has a superior predictive value for future cardiovascular outcomes than daytime BP. As efficacy of BP medications wanes during nighttime and early morning, control of nocturnal hypertension and morning hypertension can be difficult.

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Article Synopsis
  • * In a trial with 374 hypertensive patients, those receiving the triple therapy saw a significant decrease in mean sitting systolic blood pressure after 8 weeks compared to the dual therapy group.
  • * Results indicated that the triple therapy led to higher rates of achieving target blood pressure and a lower occurrence of adverse events, especially among women and patients aged 65 and older.
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With the recent obesity pandemic, obesity-related hypertension and its complications (e.g., heart failure, coronary disease, and chronic kidney disease [CKD]) are gaining attention in clinical and research fields.

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Background: We evaluated the effect of a dipeptidyl peptidase-4 inhibitor (DPP-4i) on the progression of obstructive coronary artery disease (OCAD) in patients with type 2 diabetes mellitus (T2DM) receiving insulin therapy.

Methods: Using a multicenter clinical data warehouse, we analyzed the patients receiving insulin therapy for T2DM who underwent coronary computed tomography angiography (CCTA) for ≥2 times. The patients were divided into two groups according to the presence of DPP-4i prescription between the two CCTA examinations.

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Background: Non-dipping or reverse dipping patterns are known to be associated with adverse cardiovascular prognosis among the general population and clinical cohort. Few large sized studies have explored factors including sleep duration and sleep quality related to nighttime blood pressure (BP) and nocturnal dipping patterns.

Methods: Among 5,360 patients enrolled  in Korean multicenter nationwide prospective Registry of ambulatory BP monitoring (KORABP), 981 subjects with complete data on sleep duration, sleep quality assessed using a 4-point Likert scale, and clinical variables were included in the analysis.

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Background Hypertension is an important cause of morbidity, which predisposes patients to major cardiovascular events and mortality. The aim of this study was to explore the association between adherence to antihypertensive medication and clinical outcomes in adult patients with cancer. Methods and Results Using the 2002 to 2013 Korean National Health Insurance Service-National Sample Cohort, we extracted adult patients with cancer treated with antihypertensive medications.

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Background: Cuffless blood pressure (BP) measurement, enabled by recent advances in wearable devices, allows for BP monitoring in daily life. This study aims to evaluate the feasibility, cresdence, and usefulness of cuffless BP monitoring through a population survey.

Methods: During the "Daily BP Measurement with Your Galaxy Watch" campaign held by the Korean Society of Hypertension, participants were asked to share their experiences with cuffless BP measurement using a smartwatch application through an online survey.

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This study aimed to evaluate the effects of asthma on cardiovascular disease incidence in patients with hypertension. A total of 639,784 patients with hypertension from the Korea National Health Insurance Service database were included, of whom 62,517 had history of asthma after propensity score matching. The risks of all-cause mortality, myocardial infarction (MI), stroke, and end-stage renal disease (ESRD) were assessed according to the presence of asthma, long-acting β2-agonist (LABA) inhaler usage, and/or systemic corticosteroid usage for up to 11 years.

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Cuffless wearable devices are currently being developed for long-term monitoring of blood pressure (BP) in patients with hypertension and in apparently healthy people. This study evaluated the feasibility and measurement stability of smartwatch-based cuffless BP monitoring in real-world conditions. Users of the first smartwatch-based cuffless BP monitor approved in Korea (Samsung Galaxy Watch) were invited to upload their data from using the device for 4 weeks post calibration.

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Mercury-free sphygmomanometers are gradually replacing the traditional sphygmomanometers in clinical settings and epidemiological surveys for measuring blood pressure (BP) due to mercury toxicity. No direct comparative studies have evaluated BP differences and statistical errors of automated oscillometric devices (ODs) against electronic auscultatory devices (ADs) for epidemiologic surveys. Herein, we evaluated the validity of ODs for the Korea National Health and Nutrition Examination Survey (KNHANES) using the Universal Standard for BP device validation through a direct comparison with ADs as the reference standard.

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Home blood pressure measurement (HBPM) has the advantage of measuring blood pressure (BP) multiple times over a long period. HBPM effectively diagnoses stress-induced transient BP elevations (i.e.

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