Key result
The Great East Japan earthquake and tsunami increased the incidence of Takotsubo syndrome in the coastal area at 2 years post-disaster compared to the pre-earthquake period.
Why the study?
To clarify the incidence of takotsubo syndrome after the Great East Japan earthquake between inland and coastal areas.
Does exposure to the Great East Japan earthquake and tsunami increase the incidence of Takotsubo syndrome in coastal versus inland areas?
Observational (n=112)
Yes
Does exposure to the Great East Japan earthquake and tsunami increase the incidence of Takotsubo syndrome in coastal versus inland areas?
The incidence of Takotsubo syndrome significantly increased in the acute phase after the Great East Japan earthquake, particularly in tsunami-damaged coastal areas, though long-term prognosis was unaffected.
Answers are grounded in this paper and cite their sources.
Post-earthquake coastal TTS rise was associated with regional stress; leaves open causal mechanisms and disaster preparedness strategies.
BACKGROUND: This study aimed to clarify the incidence of takotsubo syndrome (TTS) after the Great East Japan earthquake (GEJ-E) between inland and coastal areas. METHODS AND The incidence of TTS was calculated using the standardized incidence ratio (SIR) before and after the earthquake. The long-term prognosis of the 2 groups was compared by Kaplan-Meier analysis. A total of 112 patients with TTS were registered from the acute coronary syndrome records of each hospital (n=4,163); 9 patients with TTS were registered within 2 months of the earthquake. A significant monthly variation was observed in March and April 2011 compared with the other months (P=0.029). At 2 years after the earthquake, the SIR was significantly increased in the coastal area (P<0.01), but decreased after ≥3 years. There were no significant differences in the long-term prognosis between the 2 groups (P=0.20). CONCLUSIONS: The incidence of TTS was increased in the acute phase after the GEJ-E, particularly in the coastal area. The magnitude of the tsunami damage is presumed to be a factor in the increased incidence of TTS, even though the seismic intensity in both areas was comparable.
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Itoh et al. (2021) conducted an observational in Takotsubo syndrome (n=112). Great East Japan earthquake and tsunami vs. Pre-earthquake period and inland area was evaluated on Standardized incidence ratio (SIR) of Takotsubo syndrome at 2 years post-earthquake (SIR 2.37, 95% CI 1.54-3.50, p=<0.01). The Great East Japan earthquake and tsunami increased the incidence of Takotsubo syndrome in the coastal area at 2 years post-disaster compared to the pre-earthquake period.
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