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Tytuł pozycji:

Transient depression of myocardial function after influenza virus infection: A study of echocardiographic tissue imaging.

Tytuł:
Transient depression of myocardial function after influenza virus infection: A study of echocardiographic tissue imaging.
Autorzy:
Ito T; Department of Cardiology, Osaka Medical College, Takatsuki, Osaka, Japan.
Akamatsu K; Department of Cardiology, Osaka Medical College, Takatsuki, Osaka, Japan.
Fujita SI; Department of Cardiology, Osaka Medical College, Takatsuki, Osaka, Japan.
Kanzaki Y; Department of Cardiology, Osaka Medical College, Takatsuki, Osaka, Japan.
Ukimura A; Department of General Internal Medicine, Osaka Medical College, Takatsuki, Osaka, Japan.
Hoshiga M; Department of Cardiology, Osaka Medical College, Takatsuki, Osaka, Japan.
Źródło:
PloS one [PLoS One] 2019 Aug 23; Vol. 14 (8), pp. e0221628. Date of Electronic Publication: 2019 Aug 23 (Print Publication: 2019).
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
Język:
English
Imprint Name(s):
Original Publication: San Francisco, CA : Public Library of Science
MeSH Terms:
Echocardiography*
Influenza, Human/*diagnostic imaging
Influenza, Human/*physiopathology
Myocardium/*pathology
Adult ; Biomarkers/metabolism ; Echocardiography, Doppler ; Female ; Humans ; Male ; Ventricular Function, Left
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Substance Nomenclature:
0 (Biomarkers)
Entry Date(s):
Date Created: 20190824 Date Completed: 20200303 Latest Revision: 20200303
Update Code:
20240105
PubMed Central ID:
PMC6707632
DOI:
10.1371/journal.pone.0221628
PMID:
31442264
Czasopismo naukowe
Background: Influenza virus infection (IVI) was reported to be associated with minor cardiac changes, mostly those detected on electrocardiogram with and without elevated blood markers of myocardial injury; however, the characteristics of myocardial involvement in association with IVI are poorly understood. This study used echocardiographic tissue imaging (tissue Doppler, strain, and strain rate) to evaluate changes in left atrial (LA) and left ventricular (LV) myocardial function after IVI.
Methods and Results: We examined 20 adult individuals (mean age, 43 years) at 2 and 4 weeks after diagnosis of IVI. For myocardial functional variables, we obtained LV global longitudinal strain (GLS), LV early diastolic strain rate (e'sr), LA strain, and LA stiffness (E/e'/LA strain), in addition to data on tissue Doppler (s', e', and a') and myocardial performance index. Blood markers of myocardial injury were also examined. During follow-up, there were no significant changes in global chamber function such as LV ejection fraction, E/e', and LA volume. However, significant changes in myocardial function were observed, namely, in s' (8.0 ± 1.6 cm/s to 9.3 ± 1.5 cm/s; p = 0.01), e' (10.2 ± 2.8 cm/s to 11.4 ± 3.0 cm/s; p < 0.001), e'sr (1.43 ± 0.44 1/s to 1.59 ± 0.43 1/s; p = 0.005), and LA strain (35 ± 8% to 40 ± 12%; p = 0.025), and the myocardial performance index (0.52 ± 0.20 to 0.38 ± 0.09; p = 0.009), but not in a', LA stiffness, or GLS. Cardiac troponin T and creatinine kinase isoenzyme MB were not elevated significantly at any examination.
Conclusions: Myocardial dysfunction during IVI recovery appeared to be transient particularly in the absence of myocardial injury. Echocardiographic tissue imaging may be useful to detect subclinical cardiac changes in association with IVI.
Competing Interests: The authors have declared that no competing interests exist.
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