Kiyotoshi Akita

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We reviewed the results of thromboembolectomy, which was performed for the treatment of chronic thromboembolic pulmonary hypertension (CTEPH), 1 year after the operation. We obtained hemodynamic and respiratory data of 60 patients from the 112 patients who were operated at our institute. The hemodynamic parameters such as mean pulmonary arterial pressure(More)
A 59-year-old male who had undergone aortic and mitral valve replacement with Starr-Edwards ball valves 27 years ago was admitted to our hospital for hemolytic anemia and heart failure. Echocardiography revealed prosthetic valve failure with a high-pressure gradient and small effective orifice area. The Starr-Edwards ball valves were successfully replaced(More)
A 77-year-old male having multiple small nevi over the lips, face, mucous membrane of mouth, tongue, neck and thorax was admitted to our hospital because of severe anemia. He has been diagnosed as Rendu-Osler-Weber disease (Osler's disease) since his 42 years of age. Although the stools were positive for occult blood, hematologic examination disclosed no(More)
A 34-year-old male with a past history of permanent inferior vena cava (IVC) filter placement was referred to us for chronic thromboembolic pulmonary hypertension. Percutaneous cardiopulmonary support (PCPS) was required for the lung hemorrhage and reperfusion injury, although the thromboendarterectomy was successfully completed. The arterial cannula was(More)
PURPOSE We evaluated the relationship between internal thoracic artery (ITA) stenosis anastomosed to the left anterior descending artery (LAD) and the degree of LAD stenosis using 320-detector row computed tomography (320-ADCT) and adenosine thallium-201 myocardial perfusion scintigraphy (Tl-201-MPS). METHODS We included 101 patients who underwent(More)
PURPOSE Valve surgery for active infective endocarditis (IE) can cause fatal brain hemorrhage. Our current study aimed to evaluate the incidence of septic cerebral lesions in active IE patients by performing preoperative magnetic resonance imaging (MRI) including T(2)*- weighted sequences and magnetic resonance angiography (MRA) before urgent valve surgery,(More)
BACKGROUND Sixty-four-slice multidetector computed tomography (64-MDCT) has been shown to be a feasible modality for diagnosing coronary artery disease. We studied the accuracy of 64-MDCT in the detection of diseased grafts and also evaluated its limitations. METHODS This study comprised 19 patients who underwent coronary artery bypass grafting and both(More)
Aberrant right subclavian artery is a rare condition with a prevalence of 0.5%-2.0% of the population. We report a case of distal aortic arch aneurysm with right subclavian artery. A 75-year-old man who was asymptomatic was referred to our hospital for a thoracic aortic aneurysm. Computed tomography showed a 55-mm fusiform aneurysm of the distal arch and an(More)
This report presents an extremely rare case of paraplegia following emergency surgery for a nonruptured symptomatic abdominal aortic aneurysm. A 62-year-old man underwent an emergency surgical repair for a symptomatic nonruptured infrarenal abdominal aortic aneurysm. On postoperative day 2 paraplegia following spinal cord ischemia occurred at the T8 level.(More)
A 70-year-old Japanese man with non-insulin-dependent diabetes mellitus showed scleredema diabeticorum. The patient complained of edematous feelings on his hands, both arms and face. The time of onset of these symptoms was not known. He had typical clinical and histopathological findings of diabetic scleredema. His diabetic control was poor and HbA1c level(More)