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- 저자 : Suha Cetin (검색결과 1 건)
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Mustafa Gökhan Vural,Suha Cetin,Murat Yilmaz,Ramazan Akdemir,Huseyin Gunduz 대한뇌졸중학회 2015 Journal of stroke Vol.17 No.3
Background and Purpose To investigate an association between left atrial (LA) structural and P wave dispersion (PWD) during sinus rhythm, and electrical remodeling in cryptogenic stroke (CS) patients. Methods Forty CS patients and 40 age- and sex-matched healthy controls were enrolled. P wave calculations were based on 12-lead electrocardiography (ECG) at a 50-mm/s-paper speed with an amplitude of 10 mm/mV. Difference between the maximum and minimum P wave duration was the P wave dispersion (PWD=Pmax-Pmin). LA deformation was evaluated by speckle tracking echocardiography within 3 days of the acute event. Results PWD was 30.1±7.0 ms and 27.4±3.5 ms in CS and control group (P=0.02), whereas LA maximum volume index [LAVImax] was 20.4±4.5 mL/m2 and 19.9±2.4 mL/m2 in CS and control group, respectively (P=0.04). While global peak LA strain was [pLA-S] (LA reservoir function) 41.4±6.3% and 44.5±7.1% in CS and control group, (P=0.04), global peak late diastolic strain rate values [pLA-SRa] (LA pump function) were 2.5±0.4% and 2.9±0.5% in CS and control group, respectively (P=0.001). A mild and a strong negative correlation between global pLA-S and LAVImax (r=-0.49; P<0.01), and between PWD and global pLA-S (r=-0.52; P<0.01), respectively, was observed in CS. Conclusions Increased PWD is associated with impaired LA mechanical functions and enlargement, and involved in the pathophysiology of AF or an AF-like physiology in CS.
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