Impact of the Great East Japan Earthquake on acute myocardial infarction in Fukushima prefecture.
OBJECTIVE
The incidence of cardiovascular disease (CVD) reportedly increases following a huge disaster. On March 11, 2011, the Great East Japan Earthquake hit a large area of eastern Japan. In Fukushima prefecture, many people suffered from the consequences of the earthquake, the subsequent tsunami, and especially the Fukushima Daiichi Nuclear Power Plant accident. We assessed whether the incidence of acute myocardial infarction (AMI) increased after the earthquake.


METHODS
We enrolled AMI patients admitted to 36 hospitals in Fukushima prefecture between March 11, 2009, and March 10, 2013 (n = 3068). We compared the incidence of AMI after the earthquake for more than 3 months and 1 year with that in the control years.


RESULTS
The incidence of Fukushima's annual AMI patients (per 100 000 persons) in 2011 was similar to that of previous years (n = 38.9 [2011] vs 37.2 [2009] and 38.5 [2010], P = .581). However, a significantly higher incidence of AMI was found in the Iwaki district after the disaster that corresponded to the 1-year period of observation (n = 38.7 [2011] vs 27.3 [2009] and 32.8 [2010], P = .045).


CONCLUSIONS
The Great East Japan Earthquake affected the incidence of AMI only in limited areas of Fukushima prefecture.
Departments of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan.
Takayoshi
T
Yamaki
Departments of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan.
Kazuhiko
K
Nakazato
Hoshi General Hospital, Koriyama, Japan.
Mikihiro
M
Kijima
Hoshi General Hospital, Koriyama, Japan.
Yukio
Y
Maruyama
Departments of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan.
Yasuchika
Y
Takeishi
D000328:Adult; D004190:Disasters; D055866:Earthquakes; D005260:Female; D062406:Fukushima Nuclear Accident; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D057192:Tsunamis