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Article: Effects of slow coronary artery flow on P-wave dispersion and atrial electromechanical coupling
- Article from:
- Journal of Electrocardiology
- Article date:
- July 1, 2009
- Author:
CopyrightCopyright Elsevier Science Ltd. Jul/Aug 2009. Provided by ProQuest LLC. (Hide copyright information)
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Abstract Aim: Slow coronary flow (SCF) is characterized by angiographically normal coronary arteries with delayed opacification of the distal vasculature. The purpose of this study was to evaluate atrial electromechanical couplings and P-wave dispersion (Pd) reflecting intraatrial and interatrial conduction delays in SCF patients and the relationship between these parameters and Thrombolysis in Myocardial Infarction (TIMI) frame count.
Methods: Thirty-four patients with SCF and 40 controls were enrolled. From 12-lead surface electrocardiograms, Pd was calculated. Atrial electromechanical coupling (PA), intraatrial, and interatrial electromechanical delay were measured with tissue Doppler ...