Admission with metabolic disorder is a useful predictor of the 1-year prognosis for patients with unstable angina, but not for patients with acute myocardial infarction: east-Osaka acute coronary syndrome registry.

Background: For patients with acute myocardial infarction (AMI), several studies have examined the relationship between the metabolic syndrome and prognostic outcome. However, few studies have revealed an association between the metabolic syndrome and clinical outcomes in patients with unstable angina (UA). This study compared the differences in the usefulness of recognizing metabolic disorders for the prediction of a 1-year prognosis in patients with UA and AMI.

QT dispersion and prognosis after coronary stent placement in acute myocardial infarction.

Background: QT dispersion is increased in acute myocardial infarction (AMI), but the relation of QT dispersion to prognosis has not yet been fully elucidated.

Hypothesis: The purpose of this study is to evaluate prospectively whether QT dispersion is associated with the risk of major adverse cardiac events (MACEs) and mortality after successful coronary stenting in AMI.

Methods: One hundred and forty-two patients with AMI and undergoing successful percutaneous coronary intervention (PCI) were enrolled in this study.

Inflection point of ascending aortic waveform is a predictive factor for major adverse cardiac events after successful coronary stent placement in acute myocardial infarction.

Objective: The reflection waveform in the ascending aortic pressure has been reported to reflect systemic arterial stiffness, and increase the risk of coronary heart disease. The purpose of this study is to evaluate prospectively whether the reflection waveform in the ascending aortic pressure is associated with the risk of major adverse cardiac events (MACE) after successful coronary stenting in acute myocardial infarction (AMI).

Methods And Results: One hundred and twenty-five patients with AMI and undergoing successful coronary stenting were enrolled in this study.

Inflection point of ascending aortic waveform is a predictive factor for all-cause and cardiovascular mortality in patients with chronic renal failure on hemodialysis.

Background: The reflection waveform in the ascending aortic pressure has been reported to reflect systemic arterial stiffness, and increase risk of coronary heart disease. The purpose of this study is to evaluate prospectively whether the reflection waveform in the ascending aortic pressure is associated with the mortality in patients with chronic renal failure on hemodialysis.

Methods: Fifty two patients with chronic renal failure on hemodialysis and undergoing cardiac catheterizations were enrolled in this study.

The timing of the reflected wave in the ascending aortic pressure predicts restenosis after coronary stent placement.

It has been reported that the reflection waveform in the ascending aortic pressure is associated with systemic arterial stiffness. Stiffening of the aortic walls leads to a decrease in coronary perfusion and an increase in restenosis rate. The purpose of this study was to evaluate whether the reflection waveform in the ascending aortic pressure could be used to predict restenosis after percutaneous coronary stenting.

Intravenous nicorandil can reduce the occurrence of ventricular fibrillation and QT dispersion in patients with successful coronary angioplasty in acute myocardial infarction.

Background: Because nicorandil, a potassium channel opener, has a cardioprotective effect and attenuates reperfusion injury in patients with acute myocardial infarction (AMI), intravenous nicorandil should reduce arrhythmic mortality and QT dispersion in patients with AMI.

Objectives: The purpose of this study was to evaluate whether intravenous nicorandil reduces the occurrence of ventricular fibrillation and QT dispersion in patients with successful coronary angioplasty in AMI.

Methods: A historical cohort study on the effect of nicorandil on ventricular fibrillation and QT dispersion was conducted.

Thrombus formation after aortic valvular replacement using Björk-Shiley valve occluding the right coronary orifice.

We describe a patient with unstable angina due to occlusion of the orifice of the right coronary artery by thrombus formation after aortic valvular replacement using a Björk-Shiley valve. After strict anticoagulant treatment, transesophageal echocardiography demonstrated disappearance of the thrombus formation around the orifice of the right coronary artery.

Fusiform coronary aneurysm in the left circumflex artery with recurrent myocardial infarction and idiopathic thrombopenia.

The authors describe the rare case of a patient with fusiform coronary aneurysm with myocardial infarction in the left circumflex artery complicated by idiopathic thrombopenia. Medical treatment with a combination of warfarin and aspirin could not prevent recurrence of angina pectoris and myocardial infarction, but surgical ligation of the proximal site of the fusiform aneurysm and coronary bypass to the distal site of the fusiform aneurysm prevented further myocardial infarction and angina pectoris.

Inflection point of ascending aortic waveform is a powerful predictor of restenosis after percutaneous transluminal coronary angioplasty.

Background: Although it was reported that the pulsatility of ascending aortic pressure is closely related to restenosis after percutaneous transluminal coronary angioplasty (PTCA), it is not known whether the reflection period of ascending aortic pressure can predict restenosis after PTCA. The purpose of this study was to evaluate whether reflection in the arterial system can be used to predict restenosis after PTCA.

Methods: We used the inflection point as the reflection period index and measured the coronary artery diameter, aortic pressure, and inflection time before PTCA.

Reflection in the arterial system and the risk of coronary heart disease.

Background: Although it was reported that the augmentation index and inflection time are closely related to reflection in the arterial system and large artery function, it is not known whether these indices of the ascending aortic pressure waveform increase the risk of coronary heart disease (CHD). The purpose of this study was to evaluate whether the aortic reflection of the ascending aortic pressure waveform is related to an increased risk of CHD.

Methods: We enrolled 190 men and women who had chest pain, normal contractions, no local asynergy, and no history of myocardial infarction.