원저 : 게이트 심근 SPECT의 관동맥우회로술후 심근 벽운동 호전 예측능 ( Predictive Values of Gated Myocardial SPECT for Wall Motion Improvement After Bypass Surgery ) () |
Author |
이동수(Dong Soo Lee),윤석남(Seok Nam Yoon),송호천(Ho Cheon Song),김기봉(Ki Bong Kim),정준기(June Key Chung),이명묵(Myoung Mook Lee),이명철(Myung Chul Lee),고창순(Chang Soon Koh), |
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Affiliation |
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Abstract |
Though myocardial perfusion was usually expected to
improve after coronary artery bypass graft(CABG)
surgery, some myocardial segments were aggravated after
operation, as we compared perfusion changes on
postoperative SPECT with preoperative ones. In this
study, we evaluated perfusion changes after operation
in rest and stress myocardial SPECT in 44 patients
(M:F=25:19, age 57.1 year±8.2) who had CABG before and
3 months after operation. We tried to find out possible
causes for perfusion aggravation with multivariate
logistic regression analysis regarding whether bypass
graft was artery or vein and which coronary artery
territory was operated. Among 616 myocardial segments
which were operated, 89(14.4%) aggravated after
operation. In the univariate analysis, myocardial
segments in the left circumflex arteries(LCx)
aggravated more often(p〈0.0l) than others and segments
having operative angioplasty did less often(p〈0.0l).
Multivariate logistic regression revealed that LCx was
risk factor for perfusion aggravation [odds ratio=2.54
(95% confidence interval : 1.53-4.22, p〈0.01)].
However, this was not the case when we analysed in
terms of arterial territories. Among 106 coronary
arterial territories which were operated, 27(25.5%)
aggravated. The territories having aggravated had
similar characteristics regarding whether they received
arterial or venous grafts, angioplasty and whether the
operated territories were left anterior descending,
right coronary or left circumflex arteries. In
conclusion, myocardial segments in the left circumflex
artery tended to aggravate more often after bypass
surgery than the others. In short-term comparison of
perfusion after surgery, we could not find any tendency
that arterial or venous graft was associated with more
frequency of the aggravation of perfusion after
operation. |
Keyword |
Gated SPECT, systolic thickening, coronary artery bypass graft, wall motion, viability |
Full text Article |
28501999.pdf
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