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2017 ; 47
(5
): 705-713
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Comparison of the Infarct Size between the Loading of Ticagrelor and Clopidogrel
in Patients with Acute Myocardial Infarction Undergoing Primary Percutaneous
Coronary Intervention
#MMPMID28955389
Yun KH
; Rhee SJ
; Ko JS
Korean Circ J
2017[Sep]; 47
(5
): 705-713
PMID28955389
show ga
BACKGROUND AND OBJECTIVES: Ticagrelor is considered a potent antiplatelet agent
compared to clopidogrel. However, there are no studies regarding the effect of
ticagrelor loading on infarct size in patients with ST-segment elevation
myocardial infarction (STEMI) in a primary percutaneous coronary intervention
(PCI) setting. SUBJECTS AND METHODS: In this single-center, randomized,
open-label study, 188 patients who underwent primary PCI for STEMI were enrolled
(92 patients in the clopidogrel group and 96 in the ticagrelor group) and
compared the infarct size by technetium-99m (Tc-99m) tetrofosmin single-photon
emission computed tomography (SPECT) and serial cardiac biomarker levels between
the groups. SPECT was performed at a median of 2 days after PCI. RESULTS:
Baseline clinical and procedural characteristics were similar between the groups.
Infarct size on SPECT, was similar between the 2 groups (28.1%±34.5% vs.
32.8%±29.2%; p=0.169). At all time-points after PCI (8, 24, and 48 hours), the
peak levels of creatine kinase-myocardial band (CK-MB) and troponin T were lower
in the clopidogrel group. The clopidogrel group showed lower cumulative troponin
T levels than the ticagrelor group (12.59±10.66 vs. 17.67±19.51 ng/mL; p=0.029).
CONCLUSION: Ticagrelor loading before primary PCI was not associated with reduced
myocardial infarct size during the first 48 hours, compared to clopidogrel
loading.