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Eur Heart J Acute Cardiovasc Care. 2019 Nov 6:2048872619886313. doi: 10.1177/2048872619886313. [Epub ahead of print]

Impact of body temperature at admission on inhospital outcomes in patients with takotsubo syndrome: insights from the Tokyo Cardiovascular Care Unit Network Registry.

Author information

1
Tokyo CCU Network Scientific Committee, Japan.
2
Department of Cardiology, Tokyo Metropolitan Tama Medical Center, Japan.

Abstract

BACKGROUND:

Takotsubo syndrome occasionally occurs in patients with fever due to underlying diseases. However, the impact of body temperature on inhospital prognosis of patients with takotsubo syndrome remains unknown.

METHODS:

Using the patient cohort in the Tokyo Cardiovascular Care Unit Network Registry from 2013 to 2015, we identified 421 eligible patients whose data on body temperature at admission were available and classified them into three groups: high body temperature group (≥37.5°C; n=27), normal body temperature group (36.0-37.4°C; n=319), and low body temperature group (≤35.9°C; n=75). We compared the patient characteristics and inhospital outcomes among the three groups.

RESULTS:

On admission, the high body temperature group showed a higher proportion of men and preceding physical triggers, higher heart and respiratory rates, and higher C-reactive protein level than the other groups. Inhospital all-cause mortality was significantly higher in the high body temperature group than in the normal or low body temperature group (18.5% vs. 2.2% vs. 4.0%, respectively, P<0.001). Both cardiac mortality (11.1% vs. 1.3% vs. 1.3%, P=0.001) and non-cardiac mortality (7.4% vs. 0.9% vs. 2.7%, P=0.031) were also significantly higher in the high body temperature group. Multivariable logistic regression analysis showed that high body temperature (reference: normal body temperature) was significantly associated with higher inhospital mortality (adjusted odds ratio 4.22; 95% confidence interval 1.15-15.51; P=0.030).

CONCLUSIONS:

Our findings suggest that high body temperature at admission is a strong predictor of inhospital mortality in patients with takotsubo syndrome. Febrile takotsubo syndrome patients may need to be managed with recognition of life-threatening conditions from the time of diagnosis, no matter what the causes of fever are.

KEYWORDS:

Takotsubo syndrome; body temperature; fever; mortality; underlying disease

PMID:
31691595
DOI:
10.1177/2048872619886313

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