Oct 31, 2008

Locations of coronary artery lesions in patients with severe conduction disturbance

International Heart Journal
Murat YesilRustem Yilmaz


The relation between conduction disturbances and coronary pathology is often uncertain. The aim of this study was to examine the location of coronary lesions in patients who have an indication for a permanent pacemaker. Between 2001 and 2006, 203 consecutive patients (121 men (59%), mean age, 65 +/- 10) who had severe conduction disturbance underwent coronary angiography before pacemaker implantation. Third degree AV block was present in 172 (84%), sick sinus syndrome in 21 (11%), and Mobitz II, second degree AV block in 10 (5%). The coronary angiographic study included stenosis severity and classification of pathological anatomy. Sixty-two age-matched subjects with coronary artery lesions > 50% but without conduction disturbance made up the control group. The locations of coronary lesions were classified as follows: Type I: Lesions not related to septal branches or AV node (AVN) artery; Type II: Lesions involving the septal perforators of LAD but not RCA; Type III: Lesions compromising blood supply to SAN or AVN (No LAD septal involvement); and Type IV: Combination of Type II and Type III. Of 203 patients, insignificant coronary pathology was found in 141 (70%- group X). Sixty-two patients (30%) had coronary stenoses > 50% (gr...Continue Reading

Mentioned in this Paper

Arterial System
Leukocyte Adhesion Deficiency Type 1
Coronary Artery Disease
Severity of Illness Index
Incidence Studies
Blastocyst Implantation, Natural
Entire Coronary Artery
Atrioventricular Block
Stenosis (invertebrate)
Stroke Volume

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