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Information Journal Paper

Title

QT interval and P wave dispersion in slow coronary flow phenomenon

Pages

  212-217

Abstract

 BACKGROUND: Slow coronary flow (SCF) phenomenon is an angiographic finding which is defined as slow contrast passage through coronary arteries which may predispose patients to serious cardiac complications such as fatal arrhythmias. P-wave and QT-interval dispersion are electrocardiographic findings which are related to atrial fibrillation and ventricular tachyarrhythmias. In the present study, the relation between SCF and presence of P-wave and QT-interval dispersion in Electrocardiography has been evaluated. METHODS: 47 patients with normal coronary arteries and SCF and 40 patients with normal coronary artery flow without SCF were enrolled in this case control study. Standard electrocardiogram (ECG) was analyzed for P-wave and QT-interval dispersion. SCF was identified in normal coronary vessels by use of Thrombolysis in Myocardial Infarction (TIMI) frame count (TFC) method (TFC ˃ 27). Corrected TIMI frame count (CTFC) of coronary vessels as well as mean CTFC along with QT-interval and P-wave dispersion were compared between 2 groups. The study data were analyzed by SPSS software and P value less than 0. 050 was considered to be significant. RESULTS: QT-interval [76. 17 (35. 23) ms versus 39. 25 (19. 26) ms] and P-wave [39. 74 (17. 48) ms versus 19. 50 (8. 54) ms] dispersion were significantly higher among patients with SCF phenomenon (P ˂ 0. 050). In addition, there was a positive significant linear correlation between TFC and P-wave and QT-dispersion (r = 0. 857, r = 0. 861, respectively, P ˂ 0. 050). CONCLUSION: According to the results, increasing TFC among patients with SCF will result in P wave and QT interval dispersion and therefore this finding can be considered as an indicative marker for cardiac events.

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    APA: Copy

    ESHRAGHI, ALI, Hoseinjani, Emadoddin, JALALYAZDI, MAJID, VOJDANPARAST, MOHAMMAD, & JAFARZADEH ESFEHANI, REZA. (2018). QT interval and P wave dispersion in slow coronary flow phenomenon. ARYA ATHEROSCLEROSIS, 14(5), 212-217. SID. https://sid.ir/paper/726951/en

    Vancouver: Copy

    ESHRAGHI ALI, Hoseinjani Emadoddin, JALALYAZDI MAJID, VOJDANPARAST MOHAMMAD, JAFARZADEH ESFEHANI REZA. QT interval and P wave dispersion in slow coronary flow phenomenon. ARYA ATHEROSCLEROSIS[Internet]. 2018;14(5):212-217. Available from: https://sid.ir/paper/726951/en

    IEEE: Copy

    ALI ESHRAGHI, Emadoddin Hoseinjani, MAJID JALALYAZDI, MOHAMMAD VOJDANPARAST, and REZA JAFARZADEH ESFEHANI, “QT interval and P wave dispersion in slow coronary flow phenomenon,” ARYA ATHEROSCLEROSIS, vol. 14, no. 5, pp. 212–217, 2018, [Online]. Available: https://sid.ir/paper/726951/en

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