Yoshitsugu Nakamura

Learn 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)
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)
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)
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)
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)
PURPOSES The aim of this retrospective study was to investigate the effect of chronic kidney disease (CKD) on outcomes after coronary artery bypass grafting (CABG), and to determine whether preoperative estimated glomerular filtration rate (eGFR) can be a predictor of long-term outcomes after CABG. METHODS 486 Japanese patients who underwent isolated CABG(More)
Urinary excretion of lipocalin-type prostaglandin D synthase (L-PGDS) has been suggested to be a useful biomarker of early diabetic nephropathy. We studied whether L-PGDS is also a marker of gentamicin (GM)-induced renal damage in the "creatinine-blind" range. A prospective study was conducted in 6 patients who were given long-term intravenous(More)
The proximal anastomosis of the apicoarotic bypass is technically demanding. We describe our novel surgical technique to reinforce the proximal anastomosis of the apicoaortic bypass. After moving circular muscle of the left ventricle (LV) under ventricular fibrillation, an inverted tube graft is inserted into LV through the opening of the apex. Then,(More)
Bacterial translocation is believed to occur during cardiopulmonary bypass (CPB) because serum endotoxin concentrations rise. Intestinal ischemia during CPB, however, has never been proven directly. The condition of the intestinal mucosa during CPB was studied by measuring serum diamine oxidase (DAO) activity, an index of intestinal ischemia. Serum DAO(More)