Effect of Coronary Slow Flow on Intrinsicoid Deflection of Qrs Complex

Abstract

Coronary slow ow is a rare, clinically important entity observed in acute coronary syndrome. e pathophysiological mechanism is not fully elucidated. We investigated patients with chest pain who had angiographic features consistent with the coronary slow ow. One hundred ten patients were included. Electrocardiography, echocardiography, and angiography results were retrospectively noted. e mean age was 56.4. Fifty-eight were male, and fty-two were female. e control group consisted of patients with normal angiography. Patients had higher diastolic blood pressure, lower mean ejection fraction, higher average left ventricular end-diastolic diameter, and higher mean left atrial size than the control group (p � 0.009, p � 0.017, p � 0.041, and p < 0.001, resp.). Patients had higher average V1 ID, V6 ID, P wave dispersion, TFC LAD, TFC Cx, TFC RCA, and TFC levels than the control group. A signi cant linear positive relationship was found between the V1 ID and the TFC LAD, TFC Cx, TFC RCA, and TFC; also between the V6 ID and the TFC LAD, TFC Cx, TFC RCA, and TFC. Angiographic and electrocardiographic features are suggestive and diagnostic for the coronary slow ow syndrome. Although when regarded as a benign condition, coronary slow ow should be diagnosed, followed up, and treated as many of laboratory features suggest ischemic events.