Noriaki Takeshita

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BACKGROUND It is reasoned that reducing left ventricular diameter (Laplace's law) in patients with dilated cardiomyopathy, will improve ventricular function. METHODS Partial left ventriculectomy was performed in 120 patients with end-stage dilated cardiomyopathies of varying causes. Most patients were in New York Heart Association functional class IV. The(More)
We present a case of a 34-year-old male with dilated cardiomyopathy in whom we performed a new surgical procedure; i.e., ventricular volume reduction to improve function. This initial human experience was preceded by a series of ten sheep in which we demonstrated that by enlarging the left ventricle (LV), the ejection fraction was reduced, and by restoring(More)
The histologic classification for odontogenic carcinomas is still under revision; thus, the differentiation between the terms "malignant ameloblastoma" and "ameloblastic carcinoma" has not been definitely stated. Nevertheless, it is recommended to reserve the former for those lesions that, in spite of an apparently innocuous histology, have given origin to(More)
BACKGROUND Although donor scarcity and intolerance to immunosuppression tend to exclude elderly patients from transplantation, partial left ventriculectomy (PLV) has been performed without bias against advanced age. METHODS Among 392 patients undergoing PLV, 61 elderly patients aged 65 or older (> or =65) were compared with the rest of the patients in(More)
Angiographic, Doppler-echocardiographic and hemodynamic studies early (+6 days) and late (+180 days) after partial left ventriculectomy (PLV) on 24 patients revealed that PLV decreased end-systolic volume (or dimension) more than the end-diastolic volume (or dimension), improving stroke volumes (or contractile excursion), and doubling ejection fraction (or(More)
Multinucleated giant cells (MGCs) that responded to synthetic hydroxyapatite (HAP) implanted in rat mandibles were studied with electron microscopy. HAP used in this study sintered at 200 degrees C (HAP200) and at 125 degrees C (HAP1250) after the synthesis by a wet method. One to three weeks after the intraosseous implantation of HAP, MGCs responding to(More)
Eighteen oral mucosal biopsies with Candida infection were studied with light and electron microscopy. Under light microscopy, candidal infected oral mucosa was classified with epithelial hyperplasia, 15 cases and epithelial dysplasia, three cases. Four of 15 epithelial hyperplasias showed marked parakeratosis, and high grade acanthosis with many(More)