Results
Of the 191 patients, 106 (55.4%) were male and 75 (44.6%) were female
and the average age was 66±5.8 (Table 1). Of the 30 patients having
IMLAD image on CAG, 8 were observed to have an epicardial LAD and 22 had
an intramyocardial course. Of the 25 patients being observed to have
IMLAD intraoperatively, 3 had a normal preoperative CAG imaging. (Figure
1) In CAG group, of the 30 patients, 20 (66.7%) were male and 10
(33.3%) were female and average age was 64±6.2. In CABG group, of the
25 patients, 15 (60%) were male and 10 (40%) were female, and the
average age was 63±4.9.
The prevalence of the intramyocardial LAD in patients undergoing CABG
was 13%. Sensitivity of CAG was measured as 88% and specificity of CAG
was 95.1%.
Of the 25 IMLAD cases, 20 (80%) had a superficial course and five
(20%) had a deeper course through the interventricular septum. In 20
cases, including the two deeply located IMLAD, LAD was grafted distally
where it became visible. In five cases, LAD was not visible even in
distal part. Great cardiac vein was used as a leading mark in order to
visualize IMLAD and LAD was grafted within the myocardium. No
intra/postoperative complication was observed in any of the IMLAD cases.