Yoshimitsu Ishibashi

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PURPOSE The purpose of this study is to identify the risk factors affecting the high mortality rates associated with the treatment of ruptured abdominal aortic aneurysm (AAA). METHODS In this retrospective study, the subjects consisted of 105 patients who underwent repair of ruptured AAA at our institution from December 1984 to March 2012. We compared the(More)
OBJECTIVES Patients with Stanford type B dissection who have been treated successfully with medical hypotensive therapy during the acute phase (< 14 days) have the risk of surgery during the chronic phase because of enlargement of the dissected aorta. The objective of this retrospective analysis is to determine the predictors of surgical indications for(More)
A 79-year-old woman was urgently referred to a district hospital with dull central chest pain after swallowing a fish bone. The bone was removed by esophagoscopy. Eleven days later she presented because of hematemesis. Computed tomography and aortic arch angiography confirmed a diagnosis of esophageal perforation leading to mediastinitis and the presence of(More)
OBJECTIVES The surgical treatment for thrombosed type A dissection is controversial because it has a better prognosis than with conservative therapy. We discuss the validity of conservative therapy for thrombosed type A dissection and examine the relationship between the morphology of the dissecting aorta and its operative indications. METHODS Subjects(More)
OBJECTIVE Early outcomes of open abdominal repair (OS) versus endovascular repair (EVAR) for abdominal aortic aneurysm were retrospectively analyzed, after commercialized devices for EVAR had become available in Japan. PATIENTS AND METHODS A total of 781 consecutive patients (OS, n = 522; EVAR, n = 259) were treated at ten medical centers between January(More)
Multichannel near-infrared spectroscopy (NIRS) could detect change in the regional cerebral oxygenation by following animated pictures of oxy-hemoglobin (OxyHb), deoxy-hemoglobin (DeoxyHb) and total hemoglobin in operations for three surgical cases of thoracic aortic aneurysm with selective cerebral perfusion (SCP). Simultaneously measured jugular venous(More)
A 32-year-old woman at 16 weeks of pregnancy was diagnosed with acute type A aortic dissection and severe aortic regurgitation. Aortic valve and aortic arch replacement was successfully performed under circulatory arrest with deep hypothermia. After the operation, she was diagnosed with Loeys-Dietz syndrome. At 36 weeks of gestation, the patient underwent a(More)
INTRODUCTION We describe the case of an 86-year-old man with an ilio-iliac arteriovenous fistula (AVF) resulting from a ruptured aneurysm. This condition rarely occurs, has a high mortality rate, and was successfully treated via surgery. PRESENTATION OF CASE The patient presented with a temporary loss of consciousness and left leg edema. A pulsatile(More)
BACKGROUND The objective of the present study was to assess the hypothesis that the introduction of endovascular aneurysm repair (EVAR) into Japan has expanded the indication of abdominal aortic aneurysm (AAA) repair without increasing surgical mortality. METHODS AND RESULTS From 10 national hospitals, we registered a total of 2,154 consecutive patients(More)
OBJECTIVES The increase in the life span of the Japanese population over the past decade has resulted in a significant increase in elderly patients in cardiac and aortic surgery. This study describes the early and mid-term survival after thoracic aortic surgery, and the influence of age on the operative mortality. METHODS A total of 85 consecutive(More)