Impaired Left Ventricle Filling in Slow Coronary Flow Phenomenon: An Echo-Doppler Study

Slow coronary flow (SCF) in a normal-appearing coronary angiogram is a well-recognized clinical entity, but its etiopathogenesis remains unclear. The aim of the study was to evaluate echocardiographic features in patients with SCF. Thirty-four patients with angiographically proven SCF (group I) and...

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Bibliographic Details
Published in:Angiology 2005-07, Vol.56 (4), p.397-401
Main Authors: Sezgin, Alpay Turan, Topal, Ergun, Barutcu, Irfan, Ozdemir, Ramazan, Gullu, Hakan, Bariskaner, Emrah, Ermis, Necip, Tandogan, Izzet, Acikgoz, Nusret, Sivri, Nasır
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Blood and lymphatic vessels
Cardiology. Vascular system
Cardiovascular system
Coronary heart disease
Diastole - physiology
Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous
Endothelium, Vascular - physiopathology
Female
Heart
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Middle Aged
Myocardial Contraction
Systole - physiology
Ultrasonic investigative techniques
Ultrasonography, Doppler
Ventricular Dysfunction, Left - diagnostic imaging
Ventricular Dysfunction, Left - physiopathology
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Summary:Slow coronary flow (SCF) in a normal-appearing coronary angiogram is a well-recognized clinical entity, but its etiopathogenesis remains unclear. The aim of the study was to evaluate echocardiographic features in patients with SCF. Thirty-four patients with angiographically proven SCF (group I) and 25 patients with normal coronary flow (group II) were enrolled in the study. The diagnosis of SCF was made with use of the “TIMI frame count (TFC)” method. All patients underwent complete transthoracic echocardiographic examination (M-mode, 2-dimensional [2-D], and Doppler parameters such as color, continuous, pulsed wave). There were no significant differences with respect to systolic parameters between the 2 groups; in spite of these, group I showed impaired left ventricular diastolic patterns compared to group II. Group I patients had higher peak late diastolic filling velocities due to enhanced atrial systole (A), lower peak (E/A) diastolic filling velocity ratios, and longer isovolumetric relaxation times compared with group II, and these were statistically significant (p
ISSN:0003-3197
1940-1574
DOI:10.1177/000331970505600406