Is Aortic Enlargement a Risk Factor for Type A Acute Aortic Dissection?

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  • Hata Mitsumasa
    Department of Cardiovascular Surgery, Nihon University School of Medicine
  • Akiyama Kenji
    Department of Cardiovascular Surgery, Nihon University School of Medicine
  • Wakui Shinji
    Department of Cardiovascular Surgery, Nihon University School of Medicine
  • Ishii Yusuke
    Department of Cardiovascular Surgery, Nihon University School of Medicine
  • Arimoto Munehito
    Department of Cardiovascular Surgery, Nihon University School of Medicine
  • Suzuki Saki
    Department of Cardiovascular Surgery, Nihon University School of Medicine
  • Tanaka Masashi
    Department of Cardiovascular Surgery, Nihon University School of Medicine

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Type A acute aortic dissection occurs suddenly, without any clinical sign and often takes the patient’s life before appropriate treatment can be provided. Herein, we report 12 patients who underwent computed tomography scan for assessment of other diseases less than 1 year before the onset of aortic dissection. We evaluated aortic diameter before the onset of aortic dissection. All patients had some risk of aortic dissection. The average maximum ascending aortic diameter was 44.3 ± 2.7 mm; range: 40 to 48 mm. Eleven patients underwent successful emergency surgery. However, 1 patient died before arrival at our hospital. Careful management is necessary for patients with aortic enlargement and risk of type A acute aortic dissection.

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