Toshiyuki Maeda

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To investigate the natural course of type 2 endoleaks (T2Es) and to identify the risk factors associated with a persistent T2E after endovascular aneurysm repair (EVAR). The medical records of patients who underwent EVAR for the treatment of an atherosclerotic abdominal aortic aneurysm between October 2006 and December 2011 at our institute were reviewed.(More)
BACKGROUND The purpose of this study was to compare the late results of combined mitral valve repair and aortic valve replacement with double valve replacement for patients with rheumatic heart disease. METHODS From 1981 to 2003, 128 patients underwent aortic valve replacement with either mitral valve repair (n = 47) or mitral valve replacement (n = 81)(More)
INTRODUCTION The feasibility, safety and oncological outcomes of laparoscopic surgery for transverse and descending colon cancers in a community hospital setting were evaluated. METHODS Twenty-six patients with transverse or descending colon cancers who underwent laparoscopic surgery at our hospital were included in this retrospective analysis (group A).(More)
BACKGROUND Endovascular repair of the descending thoracic aorta has recently emerged as a feasible treatment option; however, little is known about its application for aortobronchial fistula (ABF). Experience with endovascular repair of the thoracic aorta and the outcome of patients with ABFs was reviewed to assess whether thoracic endovascular repair is a(More)
BACKGROUND/AIMS Similar oncological outcomes of laparoscopic and open surgery for advanced colon cancer have been reported by several large-scale studies. Whether those results are applicable to community hospitals is questionable. METHODOLOGY From January 2007 to December 2010, 95 patients with colon cancer underwent laparoscopic surgery at Seirei(More)
Generally, extra-anatomical bypass grafting has been chosen for patients with leg ischemia secondary to acute aortic dissection. However, these patients are high-risk candidates for visceral vessel compromise as well. We present a case of leg ischemia secondary to acute aortic dissection, which was able to be treated by immediate stent-grafting. A(More)
OBJECTIVE The aim of this study is to investigate the positive association between the presence of renal cysts and AAA. PATIENTS AND METHODS A retrospective chart review on the clinical data of 396 consecutive patients, who underwent CT scans for preoperative evaluation of thoracic and cardiovascular surgery in Sapporo Medical University from the period(More)
Delayed neurologic deficits, paraplegia and paraparesis, are devastating complications after repair of a descending thoracic and thoracoabdominal aortic aneurysm (TAAA). A treatment protocol has not been established, although strategies such as cerebrospinal fluid (CSF) drainage, maintaining blood pressure and medication have been described. Cerebrospinal(More)
Vascular involvement is rare in neurofibromatosis type 1 (NF1). It is often missed because it is usually asymptomatic. We report a case of a 42 years old male with neurofibromatosis type 1 who presented with left back discomfort. CT angiography revealed a massive 42 mm aneurysm of left 11th intercostal artery. After a discussion between radiologists and(More)
We report a successful repair of an abdominal aortic aneurysm (AAA) in a renal transplant recipient using a femoral V-A bypass to protect the renal allograft during aortic cross-clamping. A 49-year-old male patient with renal failure had received a second allogenic renal transplantation in the right iliac fossa in 2002. Four years later, computed tomography(More)