Ryoichi Hirami

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OBJECTIVES We sought to determine the electrocardiographic (ECG) features associated with acute left main coronary artery (LMCA) obstruction. BACKGROUND Prediction of LMCA obstruction is important with regard to selecting the appropriate treatment strategy, because acute LMCA obstruction usually causes severe hemodynamic deterioration, resulting in a less(More)
To test the hypothesis that in patients with acute myocardial infarction (AMI), changes in the concentrations of the serum carboxy-terminal peptide of type I procollagen (PICP) and the carboxy-terminal telopeptide of type I collagen (ICTP) reflect extracellular matrix reformation and degradation, respectively, in the infarct healing processes, we measured(More)
The retrograde approach is an effective therapeutic strategy for chronic total occlusion (CTO) intervention. In CTO cases, the retrograde approach from the opposite coronary artery is not always applicable. In certain left anterior descending (LAD) CTO cases, the distal LAD is filled from the septal channel where it is supplied by the proximal septal route.(More)
Objective—To determine preoperatively, by analysing asynchronous left ventricular wall motion, whether to approach through the right ventricle or the left ventricle when carrying out catheter ablation of the accessory pathway in WolVParkinson-White syndrome, especially in patients with the pathway located on the septum. Methods—73 patients with manifest(More)
The use of the serum troponin T (TnT) level as a means of assessing minor myocardial injury, which affects the long-term prognosis, has not been fully clarified in patients with coronary artery disease in whom a coronary stent has been implanted. We measured the TnT level to determine the incidence of myocardial damage associated with stent implantation. A(More)
A 20-year-old woman first came to our hospital complaining of high fever and pain affecting the whole body. Takayasu’s arteritis (TA) was diagnosed. Following full-body examination, many vessels between the bilateral neck and iliac arteries were found to be impaired. Ultrasonography (US) showed the characteristic wall thickening of TA in the left common(More)
BACKGROUND The effect of remote ischemic preconditioning (RIPC) and nicorandil on periprocedural myocardial injury (pMI) in patients with planned percutaneous coronary intervention (PCI) remains controversial. The aim of this randomized trial was to evaluate the effect of RIPC or nicorandil on pMI following PCI in patients with stable coronary artery(More)
OBJECTIVE To determine preoperatively, by analysing asynchronous left ventricular wall motion, whether to approach through the right ventricle or the left ventricle when carrying out catheter ablation of the accessory pathway in Wolff-Parkinson-White syndrome, especially in patients with the pathway located on the septum. METHODS 73 patients with manifest(More)
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