Objective: Clinically,
gamma-glutamyltransferase (GGT) activity is generally used as a diagnostic
test for liver function, biliary
tract pathologies, and alcohol consumption. GGT is the enzyme that manages the
extracellular catabolism of the main antioxidant glutathione, thus increasing
the oxidative stress or inflammatory state. Recently studies reported that GGT
is related to cardiovascular mortality and morbidity independently alcohol
consumption. Elevation of GGT in heart failure (HF), atrial fibrillation (AF),
coronary artery disease, myocardial infarction, and metabolic syndrome is
explained with inflammation and oxidative stress. Aim of this study, we have examined the relation between GGT
and AF in reduced ejection fraction heart
failure (HFrEF)
patients group.
Method: Totally one hundred and sixty-three ischemic HF patients were included in
the study retrospectively.
Electrocardiographically 63 patients have AF (40 male, 23 females, mean
age: 73±8 years) and 100
patients have normal sinus rhythm (75 male, 25 female, mean age: 71±7 years). All patients had the echocardiographic examination, ejection
fraction (EF)> 40%, severe valvular heart disease, and nonischemic HF
patients were excluded.
Results: Presence of
hypertension, age, gender, dislipidemia history, diabetes, smoking condition,
fasting glucose, and cholesterol levels were compared between two groups and
there were not statistically different (p>0.05 for all). However, serum GGT activity was increased in
patients group with AF compared to those without AF (35(10-121) U/L versus 27(6-113)U/L, p=0.01).
The optimal cut-off GGT activity for AF patients were >23,5 IU/l with a sensitivity
of 81% and a specificity of 46% (AUC =0.660, 95% CI=0.575 - 0.744)
Conclusions: In this
study, serum GGT activity was concluded to be increased in HFrEF patients with AF compared to
without AF group. More comprehensive studies
should be planned to improve the clinical use of GGT in patients with HFrEF and to investigate the
relationship between GGT and AF.
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Primary Language | English |
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Subjects | Health Care Administration |
Journal Section | Medical Science Research Articles |
Authors | |
Publication Date | June 30, 2019 |
Acceptance Date | June 24, 2019 |
Published in Issue | Year 2019 |