[Evaluation of inferior epigastric arterial graft from the aspect of angiography].
We evaluated inferior epigastric artery (IEA) from the aspect of preoperative and postoperative grafts angiography. Between January 1994 and february 1995, we could perform preoperative and postoperative graft-angiography for 12 patients in 27 patients who were undergone CABG using IEA graft. They were 7 males and 5 females. The age ranged from 56 to 76 years (mean, 66.2 years). We used 12 IEAs, 8 LITAs, 7 RGEAs and 2 RITAs as artrial grafts. We measured the diameter of arterial grafts in each angiography. The preoperative diameter of IEA was measured at three points; the proximal part (Prox), center (Cent) and bifurcation (Bif). The postoperative diameter of IEA was measured at two points; the proximal part of composite graft (Prox) and the distal part (Dist). The preoperative grafts diameters were IEA-Prox = 2.01 +/- 0.40 mm, IEA-Cent = 1.75 +/- 0.39 mm, IEA-Bif = 1.32 +/- 0.29 mm, LITA-Prox = 2.40 +/- 0.25 mm, LITA-Cent = 2.00 +/- 0.24 mm, LITA-Bif = 1.64 +/- 0.22 mm, RGEA-Prox = 2.72 +/- 0.49 mm, and RGEA-Cent = 2.29 +/- 0.34 mm. RGEA was the largest, the second was RITA, the third was LITA and IEA was the smallest of the four. The diameter of IEA-Prox was almost equal to LITA-Cent. The postoperative grafts diameter were IEA-Prox = 1.85 +/- 0.37 mm, IEA-Dist = 1.67 +/- 0.38 mm, LITA-Prox 2.57 +/- 0.11 mm, LITA-before Y = 2.01 +/- 0.22 mm, LITA-after Y = 1.83 +/- 0.14 mm, RGEA-Prox = 2.70 +/- 0.55 mm and RGEA-Dist = 0.53 mm. RGEA was the largest and RGEA-Dist = 2.34 +/- 0.53 mm. RGEA was the largest and IEA was the smallest. The diameter of LITA was not significantly different between before-Y and after-Y. We conclude in view of the graft diameter, LITA-IEA Y composite graft is the best method for CABG using IEA but IEA graft should be used only to myocardial revascularization to the coronary lesion that does not require high blood flow.
Uchida
N
N
Department of Cardiovascular Surgery, Koseiren Hiroshima General Hospital, Japan.
Kawaue
Y
Y
D000368:Aged; D017023:Coronary Angiography; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000601:surgery; D019074:Epigastric Arteries / Q000637:transplantation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D014654:Vascular Patency