Yoshitsugu Nakamura

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Anomalous subaortic left brachiocephalic vein (ASLBV) is a rare systemic venous anomaly. We review our experience with patients associated with ASLBV who underwent cardiac surgery at three institutions. From 1989 to 2009, the medical records of surgically treated patients with ASLBV were analyzed; the incidence of ASLBV, clinical characteristics, and(More)
Histochemical studies of type II myoclonus bodies demonstrated that they were composed of a saccharide-lipid complex with a small amount of protein. In particular, they contained phospholipid, ganglioside and sphingomyelin. The ultrastructure of the bodies revealed that they were bound by a membrane. They were diffusely stippled or homogeneous. They were(More)
BACKGROUND Although off-pump coronary artery bypass grafting (OPCAB) has been widely applied in patients who are considered high risk for cardiopulmonary bypass (CPB), there is still a risk of stroke during the operation because of the ascending aortic partial clamp for proximal anastomosis. In the present study, we report the initial results of an "aorta(More)
We investigated the prevalence, risk factors, and optimal timing of treatment for advanced periodontitis in patients undergoing elective heart valve surgery. Dental examinations were given to 209 patients (aged 65 ± 10 years) scheduled for valve surgery. Patients with no or mild periodontitis were assigned as controls (n = 105). Patients with advanced(More)
A metastatic ball tumor in the right atrium originating from esophageal cancer is extremely rare. A 53-year-old woman had two such tumors without any other types of metastasis. These tumors were associated with severe thrombocytopenia caused by the consumption of platelets. Even after repeated transfusions of platelets and fresh frozen plasma, the(More)
When endovascular treatment is performed, angulation of the access route for a device can make the operative procedure difficult. We encountered a case in which we successfully completed thoracic endovascular aortic repair (TEVAR) in a patient with severely angulated aorta by applying 'double-wire technique'. The patient was an 80-year-old woman. An(More)
Surgical treatment for acute type A aortic dissection (AAD) complicated by cerebral malperfusion (CM) remains debatable. Worsening of neurologic symptoms and poor quality of life after immediate surgery continue to be cause for concern. We performed immediate aortic repair followed by early rehabilitation in 10 patients with AAD complicated by CM. The early(More)
BACKGROUND AND AIM OF THE STUDY The optimal procedure and prosthesis remains debatable for aortic valve replacement (AVR) in high-risk elderly patients in whom the aortic annulus is too small to allow a standard AVR procedure with even the smallest sized bioprosthetic valve available. Herein are reported the early and mid-term results of standard AVR using(More)
BACKGROUND Clinical outcomes and problems following off-pump coronary artery bypass grafting (OPCAB) in elderly patients have not been clarified. METHODS AND RESULTS The surgical results of elderly patients aged 75 years or older (n=50; 38 males, mean age, 78.8 years) were reviewed and compared with those of younger patients (n=95; 79 males, mean age,(More)
BACKGROUND Anti-Myelin oligodendrocyte glycoprotein (MOG) antibodies are detected in various demyelinating diseases, such as pediatric acute disseminated encephalomyelitis (ADEM), recurrent optic neuritis, and aquaporin-4 antibody-seronegative neuromyelitis optica spectrum disorder. We present a patient who developed anti-MOG antibody-positive ADEM(More)