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Article
Creatinine kinase-myocardial band (CK-MB) to creatinine kinase (CK) ratio for ST-segment elevation myocardial infarction in the era of the universal definition
Although serum troponin level is the gold standard under the universal definition of acute myocardial infarction (AMI), serum creatinine kinase (CK) and creatine kinase-myocardial band (CK-MB) is still measure...
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Article
Development of a simple prediction model for mechanical complication in ST-segment elevation myocardial infarction patients after primary percutaneous coronary intervention
Mechanical complication (MC) is a rare but serious complication in patients with ST-segment elevation myocardial infarction (STEMI). Although several risk factors for MC have been reported, a prediction model ...
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Article
Determinants of serious in-hospital complications in patients with Killip class 1/2 ST-segment elevation myocardial infarction who underwent primary percutaneous coronary intervention
Killip classification has been used to stratify the risk of patients with acute myocardial infarction (AMI). There were many reports that Killip class 3 or 4 is closely associated with poor clinical outcomes. ...
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Article
Open AccessHalftime rotational atherectomy: a unique concept for diffuse long severely calcified lesions
Rotational atherectomy (RA) is technically more difficult in a diffuse calcified lesion than in a focal calcified lesion. We hypothesized that taking a halftime can be another option for RA to the diffuse calc...
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Article
Lifetime management of severely calcified coronary lesions: the treatment algorithm focused on the shape of calcification
The concept of lifetime management has not been discussed in the field of percutaneous coronary intervention (PCI), because the durability of drug-eluting stent (DES) is considered to be long enough for most p...
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Article
Rotational atherectomy to left circumflex ostial lesions: tips and tricks
Serious complications including vessel perforation may occur during rotational atherectomy (RA) to left circumflex (LCX) ostial lesions. In fact, if perforation occurs around LCX ostium, bailout procedures inc...
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Article
Association of peak C-reactive protein with long-term clinical outcomes in patients with ST-segment elevation myocardial infarction
Peak C-reactive protein (CRP) levels following ST-segment elevation myocardial infarction (STEMI) are associated with left ventricular thrombus formation or cardiac rupture. However, the impact of peak CRP on ...
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Article
Factors associated with intensive care unit delirium in patients with acute myocardial infarction
Some patients admitted to intensive care units (ICU) would develop delirium, which is associated with poor prognosis. The purpose of this retrospective study was to identify factors associated with ICU deliriu...
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Article
Comparison of in-hospital outcomes of acute myocardial infarction between patients with cardiogenic shock and with cardiac arrest
In-hospital mortality of acute myocardial infarction (AMI) complicated with cardiogenic shock (CS) remains high. Also, in-hospital mortality of AMI complicated with cardiac arrest (CA) has been reported to be ...
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Article
Comparison of medical resource use and total admission cost in patients with acute myocardial infarction between on-hours visit versus off-hours visit
The medical expenses for patients with acute myocardial infarction (AMI) has become enormous burden for global healthcare system. In AMI patients, total admission cost for patients with off-hours visit may be ...
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Article
Comparison of door-to-balloon time and in-hospital outcomes in patients with ST-elevation myocardial infarction between before versus after COVID-19 pandemic
The situation around primary percutaneous coronary intervention (PCI) has dramatically changed since coronavirus disease 2019 (COVID-19) pandemic. The impact of COVID-19 pandemic on clinical outcomes as well a...
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Article
Long-term outcomes of the modest stent expansion strategy for the culprit lesion of acute myocardial infarction
Slow flow during primary percutaneous coronary intervention (PCI) is a common complication. Our group showed that the stent (or post-balloon) diameter-to-vessel diameter ratio was inversely associated with slo...
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Article
Association of collateral flow with clinical outcomes in patients with acute myocardial infarction
Coronary collateral flow is an important prognostic marker in percutaneous coronary intervention (PCI) for chronic total occlusion. However, the role of collateral flow to the culprit lesion of acute myocardia...
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Article
Open AccessIntravascular ultrasound-factors associated with slow flow following rotational atherectomy in heavily calcified coronary artery
Intravascular ultrasound (IVUS) can provide useful information in patients undergoing complex percutaneous coronary intervention with rotational atherectomy (RA). The association between IVUS findings and slow...
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Article
Comparison of the cost in percutaneous coronary intervention between ST-segment elevation myocardial infarction vs. non-ST-segment elevation myocardial infarction
Percutaneous coronary intervention (PCI) is a standard strategy for non-ST-segment elevation myocardial infarction (NSTEMI) as well as for ST-segment elevation myocardial infarction (STEMI). The device cost fo...
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Article
Open AccessFactors associated with difficulty in crossing the culprit lesion of acute myocardial infarction
In percutaneous coronary intervention (PCI) to the culprit lesion of acute myocardial infarction (AMI), unsuccessful guidewire crossing causes immediate poor outcomes. It is important to determine the factors ...
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Article
Comparison of in-hospital death following ST-elevation myocardial infarction between secondary emergency and tertiary emergency
In most areas in Japan, patients with ST-elevation myocardial infarction (STEMI) would be transferred to the secondary hospitals or tertiary hospitals according to the judgement of emergency medical service (E...
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Article
Clinical factors associated with slow flow in left main coronary artery-acute coronary syndrome without cardiogenic shock
Since slow flow can be a fatal complication in left main coronary artery (LMCA)-acute coronary syndrome (ACS) patients, it should be important to anticipate and prepare slow flow during primary PCI for LMCA-AC...
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Article
Open AccessComparison of clinical outcomes and left ventricular remodeling after ST-elevation myocardial infarction between patients with and without diabetes mellitus
Left ventricular remodeling (LVR) after ST-elevation myocardial infarction (STEMI) is generally thought to be an adaptive but compromising phenomenon particularly in patients with diabetes mellitus (DM). Howev...
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Article
Possible thrombus formation with huge high-echoic image in the right atrium following rapid ventricular pacing during transcatheter aortic valve implantation