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Article
Perioperative changes of the slope in the preload recruitable stroke work relationship by a single-beat technique after mitral valve surgery in functional mitral regurgitation with non-ischemic dilated cardiomyopathy
The slope in the preload recruitable stroke work relationship is a highly linear, load-insensitive contractile parameter. However, the perioperative change of the slope has not been reported before. We examine...
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Article
Risk factors for residual mitral regurgitation after aortic valve replacement in patients with severe aortic valve stenosis and moderate mitral regurgitation
While it was reported that patients with residual moderate mitral regurgitation (MR) after surgical aortic valve replacement (SAVR) had a poorer prognosis than those without it, the risk factors for residual M...
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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
Japanese perspective in surgery for thoracoabdominal aortic aneurysms
Operative mortality and morbidity after thoracoabdominal aortic surgery remain high. We report our strategy and outcomes, especially those of spinal cord protection.
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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
Therapeutic strategy for treating aortoesophageal fistulas
The development fistulas between the thoracic aorta and the esophagus are highly fatal conditions. We aimed to identify a therapeutic strategy for treating aortoesophageal fistula (AEF) in this study, by inves...
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Article
Histological assessment of transmurality after repeated radiofrequency ablation of the left atrial wall
Radiofrequency ablation (RFA) makes the Cox-Maze procedure less complicated but cannot always achieve transmural lesions. In this study, we assessed whether repeated application of RFA could improve histologic...
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Article
Open AccessThe extent of papillary muscle approximation affects mortality and durability of mitral valve repair for ischemic mitral regurgitation
Since reduction annuloplasty alone for ischemic mitral regurgitation (MR) cannot prevent late recurrence of MR or improve survival for those with left ventricular (LV) dysfunction, and the surgical approach to...
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Article
One-stage radical operation of aortoesophageal fistula -combination of VATS esophagectomy and open aortic surgery: report of a case
Aortoesophageal fistula is a rare but fatal disease of thoracic surgery. We present a case of a 74-year-old male with aortoesophageal fistula. The patient underwent successful one-stage surgical treatment by v...
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Article
Surgical strategy for aortoesophageal fistula in the endovascular era
Aortoesophageal fistula (AEF) is relatively rare and usually life-threatening. Lots of strategies have so far been discussed for this entity including the role of endovascular repair. The aim of this study is ...
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Article
Interrelation between myocardial oxidative metabolism and diastolic function in patients undergoing surgical ventricular reconstruction
Diastolic function is impaired in patients with end-stage heart failure. Favorable structural changes by surgical ventricular reconstruction (SVR) are thought to improve diastolic function, however, previous s...
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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
Postoperative atrial fibrillation: mechanism, prevention, and future perspective
Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery, despite improvements in anesthesia, surgical techniques, and medical therapies. Although beta-blockers have been ...
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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
Successful excision of a saphenous vein graft aneurysm with different methods
Aneurysm of an aortocoronary saphenous vein graft (SVG) is a rare but potentially fatal complication after coronary artery bypass grafting (CABG). Prevention of cerebral infarction or myocardial infarction due...
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Article
Can we change the operative criteria for the MAZE procedure combined with valve surgery in the era of radiofrequency devices?
After radiofrequency (RF) ablation became available, the indication of MAZE procedure conducted with bipolar RF was expanded. We examined the efficacy and feasibility of the RF MAZE procedure in valve surgery ...
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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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Chapter and Conference Paper
Sivelestat Sodium is Effective to Prevent Acute Lung Injury in Acute Aortic Dissection
Acute lung injury is a frequent and serious complication in patients with acute aortic dissection (AAD). Elevated neutrophil elastase has been reported to be one of the major contributing factots. We evaluated...
