[Zasshi] [Journal]. Nihon Kyōbu Geka Gakkai
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Nihon Kyobu Geka Gakkai Zasshi · Dec 1993
[Effect of dynamic cardiomyoplasty on coronary arterial blood flow].
We investigated whether or not dynamic cardiomyoplasty adversely affected coronary arterial blood flow (CABF) through compression of the coronary arteries by muscular contraction during systole and incomplete relaxation of the skeletal muscle flap during diastole. Dynamic cardiomyoplasty was performed in 20 mongrel dogs using a left latissimus dorsi muscle flap, paced synchronously with the R wave of the electrocardiogram. A Doppler catheter (3 F in diameter) was placed in the left main trunk of the coronary artery to analyze the instantaneous changes of coronary arterial blood flow velocity by fast Fourier transformation analysis. ⋯ CABF was also enhanced in diastole because a significant increase of diastolic peak velocity (4.4 +/- 9.4%) and TVI (11.0 +/- 16.7%) was observed. Enhancement of diastolic CABF was associated with the augmentation of cardiac function and the reduction of left ventricular end-diastolic pressure. It could be concluded that CABF was increased by the enhancement of cardiac function as a result of dynamic cardiomyoplasty leading to an increase of cardiac output and aortic pressure and a decrease of left ventricular end-diastolic pressure.
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Nihon Kyobu Geka Gakkai Zasshi · Dec 1993
Case Reports[A successful case report of coronary bypass grafting by utilizing inferior epigastric artery, gastroepiploic artery and bilateral internal thoracic artery].
We performed coronary artery bypass grafting with the bilateral internal thoracic artery (ITA), right gastroepiploic artery (RGEA) and inferior epigastric artery (IEA) on a 53-year-old patient who was associated with familiar hypercholesterolemia. The IEA was extended with right ITA as a composite graft and sequentially anastomosed to the right coronary artery and distal branch of the right coronary artery. Both the LITA to the left anterior descending artery and the RGEA to the circumflex artery were used as in situ graft. The postoperative coronary angiogram showed all the graft patient.