Increased Incidence of Transient Left Ventricular Apical Ballooning (So-Called 'Takotsubo' Cardiomyopathy) After the Mid-Niigata Prefecture Earthquake

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Abstract

<b>Background</b> On October 23, 2004, a major earthquake, which registered 6.8 on the Richter scale, occurred in Niigata Prefecture in Japan. Emotional stress is important as a trigger of transient left ventricular apical ballooning (so-called `Takotsubo' cardiomyopathy), but its incidence and clinical profile immediately after a natural disaster have not been fully elucidated. <b>Methods and Results</b> `Takotsubo' cardiomyopathy was diagnosed in 16 patients (1 man, 15 women, mean age 71.5 years) within 1 month after the earthquake. Of them, 13 (81%) lived in areas where the Japan Meteorological Agency seismic intensity scale registered 6 or above, and 11 (69%) developed symptoms on the day of the earthquake. The incidence of `Takotsubo' cardiomyopathy 1 month after the earthquake was approximately 24-fold higher near the epicenter than that before the earthquake. <b>Conclusion</b> `Takotsubo' cardiomyopathy can occur on the day of the earthquake in elderly women living near the epicenter. (<i>Circ J</i> 2006; <b>70:</b> 947 - 953)<br>

Journal

  • Circulation Journal

    Circulation Journal 70(8), 947-953, 2006-07-20

    Japanese Circulation Society

References:  24

Cited by:  13

Codes

  • NII Article ID (NAID)
    110004775691
  • NII NACSIS-CAT ID (NCID)
    AA11591968
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13469843
  • Data Source
    CJP  CJPref  NII-ELS  J-STAGE 
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