8 Result(s)
within
Suguru Kubota
Biomedical Engineering and Bioengineering
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Article
Re-do mitral valve replacement for a bioprosthetic valve with central transvalvular leakage in a patient with ischemic cardiomyopathy: a case report
Transvalvular leakage (TVL) of a prosthetic heart valve is not negligible regurgitant flow in patients with critically low contractile function. Although the opening function of prosthetic valves has been repo...
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Article
Mechanical properties of a new thermally deformable mitral valve annuloplasty ring and its effects on the mitral valve
Ideally, an annuloplasty ring’s shape should be changed intraoperatively if mitral valve repair is unsuccessful because of a short coaptation length or systolic anterior motion. Several post-implantation adjus...
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Article
Clinical results and medical costs of thoracic endovascular aortic repair in patients over 80 years of age
Thoracic endovascular aortic repair (TEVAR) is expected to be minimally invasive, especially in older patients. However, clinical results of TEVAR in octogenarians including medical costs are limited. Between ...
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Article
Anticoagulation management during cardiopulmonary bypass in patients with antiphospholipid syndrome
Antiphospholipid syndrome (APS) is a complex autoimmune disease often related to systemic lupus erythematosus. Although adequate anticoagulation is important for APS patients during cardiopulmonary bypass, clo...
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Article
Comparison of two spike areas in bileaflet mechanical valve closing sound
We previously reported our development of a wavelet analysis system which demonstrates that in vivo bileaflet mechanical valve sound splits into two spikes at higher frequency levels and, based on this system,...
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Article
Cytokine balance in hepatosplanchnic system during thoracoabdominal aortic aneurysm repair
While prolonged visceral ischemia seems to be a potential source of elevated proinflammatory cytokines during thoracoabdominal aortic aneurysm (TAAA) repair, the underlying mechanisms are unclear. We have inve...
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Article
A case of Carpentier–Edwards pericardial bioprosthesis in mitral position explanted 22 years after implantation
A case of Carpentier–Edwards PERIMOUNT (CEP) mitral pericardial bioprosthesis explanted 22 years after the valve replacement is reported. This patient underwent the previous replacement at the age of 50. The e...
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Article
Titanium oxide nanotubes for bone regeneration
Titanium oxide nanotubes with Ca ions on their surfaces were prepared as 2 mm cylindrical inserts and placed into surgically created bone defects in the femurs of Wistar rats. On day 3, fibroblast-like cells w...
