Keika Hirose

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OBJECTIVES This study attempted to determine the relation between infarct size after acute myocardial infarction and subsequent left ventricular remodeling using precise clinical measurements. BACKGROUND Animal studies have demonstrated that the degree of left ventricular remodeling after myocardial infarction is linearly related to infarct size. Clinical(More)
Left ventricular (LV) remodeling after LV myocardial infarction was described previously. Little is known regarding concomitant adaptation, if any, in right ventricular (RV) volumes after LV infarction. To examine this issue, cine-computed tomography was used to determine serial changes in absolute global LV and RV volumes in 27 patients without clinical(More)
There is controversy regarding changes in regional left ventricular systolic function and thickness during remodeling after infarction. To address this, electron beam computed tomography was done in 22 patients with an index anterior wall infarction at discharge, 6 weeks, 6 months and 1 year, and global ventricular chamber volumes and mass quantified. A(More)
OBJECTIVES This study quantified serially biventricular emptying and filling after infarction and related these to changes in volume, muscle mass, wall stress and contractility. BACKGROUND There are limited data on serial changes in ventricular dynamics after infarction. METHODS Forty patients had serial electron beam computed tomographic examinations(More)
OBJECTIVE To ensure good outcomes in the management of subarachnoid haemorrhage (SAH), accurate prediction is crucial for initial assessment of patients presenting with acute headache. We conducted this study to develop a new clinical decision rule using only objectively measurable predictors to exclude SAH, offering higher specificity than the previous(More)
(1) ECG surveys were performed on 12,523 middle school students. The incidence of A-V block was 0.04% (0.37% in males and 0.43% in females). The incidence of A-V dissociation was 0.11% (0.09% in males and0.13% in females). (2) There was no case of Mobitz type II or complete A-V block in this survey. (3) Sixty-four school students were picked at random from(More)
OBJECTIVES This study investigated serial changes in regional right ventricular free wall and interventricular septal wall lengths during the first 4 to 5 years after an index anterior wall myocardial infarction. BACKGROUND We previously demonstrated that remodeling after anterior wall myocardial infarction was a biventricular process; however, regional(More)
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