Doyeon Hwang
A5027776063- Coronary Interventions and Diagnostics
- Cardiac Imaging and Diagnostics
- Acute Myocardial Infarction Research
- Antiplatelet Therapy and Cardiovascular Diseases
- Cerebrovascular and Carotid Artery Diseases
- Peripheral Artery Disease Management
- Cardiovascular Function and Risk Factors
- Cardiac Valve Diseases and Treatments
- Advanced MRI Techniques and Applications
- Lipoproteins and Cardiovascular Health
- Cardiovascular Disease and Adiposity
- Atrial Fibrillation Management and Outcomes
- Cardiac, Anesthesia and Surgical Outcomes
- Hemodynamic Monitoring and Therapy
- Diverse Approaches in Healthcare and Education Studies
- Education and Learning Interventions
- Cardiovascular Health and Disease Prevention
- Stroke Rehabilitation and Recovery
- Aortic aneurysm repair treatments
- Health and Wellbeing Research
- Venous Thromboembolism Diagnosis and Management
- Medical Imaging Techniques and Applications
- Heart Rate Variability and Autonomic Control
- Consumer Perception and Purchasing Behavior
- Plant Genetic and Mutation Studies
Seoul National University Hospital
2016-2025
Seoul National University
2012-2024
University of Alberta
2023
Boramae Medical Center
2015-2022
Pusan National University
2021
Jilin University
2017
Sungkyunkwan University
2016-2017
Union Hospital
2017
Samsung Medical Center
2016-2017
Union Hospital
2017
Background In patients with ST-segment-elevation myocardial infarction, timely reperfusion therapy door-to-balloon (D2B) time <90 minutes is recommended by the current guidelines. However, whether further shortening of symptom onset-to-door (O2D) or D2B would enhance survival infarction remains unclear. Therefore, study aimed to evaluate prognostic impact O2D in who underwent primary percutaneous coronary intervention. Methods and Results We analyzed 5243 were treated at 20 tertiary...
In patients with coronary artery disease who are being evaluated for percutaneous intervention (PCI), procedures can be guided by fractional flow reserve (FFR) or intravascular ultrasonography (IVUS) decision making regarding revascularization and stent implantation. However, the differences in clinical outcomes when only one method is used both purposes unclear.We randomly assigned 1682 were PCI treatment of intermediate stenosis (40 to 70% occlusion visual estimation on angiography) a 1:1...
Long-term outcomes of antiplatelet monotherapy in patients who receive percutaneous coronary intervention are unknown. The HOST-EXAM (Harmonizing Optimal Strategy for Treatment Coronary Artery Stenosis-Extended Antiplatelet Monotherapy) Extended study reports the posttrial follow-up results original trial.From March 2014 through May 2018, 5438 maintained dual therapy without clinical events 12±6 months after with drug-eluting stents were randomly assigned a 1:1 ratio to clopidogrel (75 mg...
Recently, resting pressure-derived indexes such as full-cycle ratio (RFR) and diastolic pressure (dPR) have been introduced to assess the functional significance of epicardial coronary stenosis. The present study sought investigate agreement RFR or dPR with other (instantaneous wave-free [iFR] fractional flow reserve), sensitivity for anatomic hemodynamic stenosis severity, prognostic implications compared iFR Methods: were calculated from tracings by an independent core laboratory in 1024...
There are limited data on the clinical implications of total physiologic atherosclerotic burden assessed by invasive studies in patients with coronary artery disease. We investigated prognostic sum fractional flow reserve (FFR) three vessels (3V-FFR). A 1136 underwent FFR measurement (3V FFR-FRIENDS study, NCT01621438). The were classified into high and low 3V-FFR groups according to median value (2.72). primary endpoint was major adverse cardiac events (MACE, a composite death, myocardial...
Background In the absence of obstructive coronary stenoses, abnormality noninvasive stress tests (NIT) in patients with chronic syndromes may indicate myocardial ischemia nonobstructive arteries (INOCA). The differential prognosis INOCA according to presence microvascular dysfunction (CMD) and incremental prognostic value CMD intracoronary physiologic assessment on top NIT information remains unknown. Methods Results From international multicenter registry (ILIAS [Inclusive Invasive...
Limited data are available on short-term dual antiplatelet therapy (DAPT) after percutaneous coronary intervention using third-generation drug-eluting stents with ultrathin struts and advanced polymer technology. We investigated whether 3- to 6-month DAPT was noninferior 12-month implantation of technology.We performed an open-label, randomized trial at 37 centers in South Korea. enrolled patients undergoing the Orsiro biodegradable-polymer sirolimus-eluting or Coroflex ISAR polymer-free...
A recent randomised trial demonstrated fractional flow reserve (FFR) guidance for percutaneous coronary intervention (PCI) was non-inferior to intravascular ultrasound (IVUS) regarding clinical outcomes, with a lower frequency of PCI. We sought evaluate the prognosis FFR versus IVUS PCI intermediate artery stenosis and low lesion complexity in diabetic non-diabetic patients. This study is prespecified post hoc analysis from FLAVOUR trial. The primary outcome major adverse cardiac events...
Recent evidence suggests that the diagnostic accuracy of myocardial perfusion imaging is improved by quantifying stress blood flow (MBF) in absolute terms. We evaluated a comprehensive quantitative (13)N-ammonia positron emission tomography ((13)NH3-PET) panel, including MBF, coronary reserve (CFR), and relative (RFR) conjunction with defect (PD) assessments to better detect functionally significant artery stenosis.A total 130 patients (307 vessels) disease underwent both (13)NH3-PET...