K Kimura

Publications (3)4.09 Total impact

• Article: Neurological deficit after simultaneous open abdominal aortic surgery and thoracic aortic endovascular therapy.

  H Ohtake, K Kimura, S Tomita, S Yamaguchi, J Sanada, O Matsui, G Watanabe
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  ABSTRACT: We examined a total of 12 cases; 8 cases were identified by searching the literature on Pubmed (excluding case reports published prior to 2000) and 4 cases were ones we personally encountered. We examined age, sex, history of smoking, and preoperative risk factors as preoperative factors, the access route and coverage of the descending aorta as perioperative factors, and complications and survival time as postoperative factors. Mean coverage of the thoracic aorta was 90.8 mm. In terms of perioperative deaths, 8.3% (1 patient) were due to coagulopathy. Perioperative complications occurred in 16.7% of cases (coagulopathy in 1 patient and paralysis in another). No patients experienced complications or underwent additional treatment during a mean follow-up of 22.9 months. This study suggested that simultaneous open abdominal aortic repair and thoracic aortic endovascular therapy is feasible and also involves few postoperative complications. Paraplegia and paralysis tended to occur less frequently than with two-stage surgery, but further study is needed to explain why this is true.
  International angiology: a journal of the International Union of Angiology 02/2011; 30(1):88-91. · 1.65 Impact Factor
• Article: Elective Matsui-Kitamura stent graft repair for descending thoracic aortic aneurysm and chronic type-B aortic dissection.

  H Ohtake, J Sanada, K Kimura, O Matsui, G Watanabe
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  ABSTRACT: The position of thoracic endovascular aortic repair (TEVAR) compared to open surgery of the thoracic aorta has changed. This study evaluates outcomes after TEVAR performed electively using our original Matsui-Kitamura stent graft (MKSG) to treat descending thoracic aortic aneurysms (dTAA) and chronic type-B aortic dissection (type-B AD), and elucidates the risk factors for postoperative spinal cord ischemia (SCI). TEVAR was performed using an MKSG in 66 patients (age: 70.8+/-9.2 years). The underlying etiology was atherosclerotic change in 39 patients, chronic type-B aortic dissection in 23 patients, and other in 4 patients. No perioperative deaths occurred. Three patients showed temporary paralysis due to postoperative SCI. Abdominal aortic aneurysm (AAA) surgery was a risk factor for postoperative SCI (P=0.04). The 5-year survival rate was 81.2%. The present study demonstrated that TEVAR of patients with dTAA and chronic type-B AD using an MKSG can be performed with high technical success rates and low rates of severe acute complications. AAA surgery was a risk factor for postoperative SCI.
  The Thoracic and Cardiovascular Surgeon 08/2010; 58(5):265-70. · 0.88 Impact Factor
• Article: Effectiveness of a temporary bypass in high-risk abdominal aortic aneurysm surgery.

  H Ohtake, K Kimura, H Kato, S Yamaguchi, S Tomita, G Watanabe
  The Journal of cardiovascular surgery 12/2009; 50(6):819-20. · 1.56 Impact Factor