Mitsuyuki Nakayama

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A patient who underwent redo coronary artery bypass grafting developed severe thrombocytopenia. A platelet transfusion caused recurrent hypotension and hypoxia. The patient status was complicated by a systemic thrombosis including coronary graft occlusion and central vein thrombosis. We found that the lupus anticoagulant, as well as other autoimmune(More)
PURPOSE To report the incidence, clinical importance and management of the incompetent gastrocnemius vein. METHODS The incompetency was examined by duplex and pulse-Doppler ultrasound at the popliteal fossa in a standing position between July 2006 and August 2014. RESULTS Among 1805 legs surveyed, 14 legs showed primary incompetent gastrocnemius vein(More)
Patients demonstrating critical limb ischemia with a long-distance occlusion of the major arteries are sometimes poor candidates for bypass surgery, because tandem occlusion complicates distal anastomoses and poor run-off causes early occlusion of bypass grafts. In order to resolve these problems, angiogenesis therapy was attempted by subcutaneous injection(More)
There have been no reports concerning wound healing at the site of the suture line in myxomatous leaflets. We microscopically studies the sutured wounds in two myxomatous posterior mitral leaflets which underwent quadrangular resection of the frail middle segment followed by primary suture. The suture wounds had a thick scar which was abundant in collagen(More)
BACKGROUND AND PURPOSE The most proximal ostial site of the chronic occlusive superficial femoral artery is not suitable for ballooning or stenting because the deep femoral artery may be occluded by these procedures. Thus, the feasibility of performing an open endarterectomy for the occluded ostium of the superficial femoral arteries combined with an(More)
Negative pressure therapy was applied to 39 deep pressure ulcers covered by soft necrotic tissue. All of the wounds were so deep that there were bones or ligaments just beneath the soft necrotic tissue. They had already received several types of conservative therapy including a necrotomy for periods ranging from 1 to 72 months. The wounds were minimally(More)
The purpose of this study was to clarify whether or not severe myxomatous degeneration impairs the stability of a repaired mitral valve after valve-conservative surgery. A total of 21 patients who underwent successful valve-conservative surgery for pure isolated mitral incompetence were classified into two groups, one comprising those with stable mitral(More)
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