Coronary bypass grafting in the elderly. Single versus bilateral internal mammary artery grafts.

A surgical experience between October 1983 and December 1990, with 1467 consecutive patients 65 years of age and over, was used to compare patients receiving single internal mammary artery grafts (n = 736) with those receiving bilateral internal mammary artery grafts (n = 731). The mean age in the single-graft group was 73.2 years and 70.

Bilateral internal mammary artery grafts in patients with left main coronary artery disease.

The use of the internal mammary artery (IMA) in myocardial revascularization has been expanded with bilateral and sequential grafting. However, its application in the presence of left main coronary artery stenosis (LMCAS) has not been well established. From September 1983 through December 1990, 280 patients with LMCAS greater than 50% were revascularized (3.

Bilateral internal mammary artery grafts in reoperative and primary coronary bypass surgery.

Bilateral internal mammary artery grafting is recognized as a preferred method of myocardial revascularization. However, its efficacy in coronary bypass reoperation has not been clearly established. From January 1982 through June 1989, 88 patients underwent coronary bypass reoperation with bilateral internal mammary artery grafts.

Seventeen-year experience with bilateral internal mammary artery grafts.

The internal mammary artery (IMA) is being recognized as the conduit of choice for myocardial revascularization. From January 1972 through June 1988, 1,087 patients received bilateral IMA and supplemental vein grafts. There were 917 men (84.

Twelve-year experience with bilateral internal mammary artery grafts.

A 12 1/2-year experience with 227 patients who underwent coronary revascularization with bilateral internal mammary artery (IMA) and supplemental saphenous vein grafts is presented. There were 725 coronary grafts performed (3.2 per patient).

Endomyocardial fibrosis. Preoperative diagnosis and surgical therapy.

The case of a Nigerian student with biventricular endomyocardial fibrosis is presented. Diagnosis was suggested by cardiac catheterization and histologically confirmed by a percutaneous endomyocardial biopsy. Successful surgical repair including mitral valve replacement, tricuspid valve reconstruction, and left ventricular endomyocardial resection was performed through a biatrial approach.

Sodium nitroprusside as a coronary vasodilator in man. I. Effect of intracoronary sodium nitroprusside on coronary arteries, angina pectoris, and coronary blood flow.

The effect of the intra-arterial injection of 5 to 10 microng of sodium nitroprusside on the caliber of normal and diseased coronary arteries was evaluated in 21 patients during diagnostic cardiac catheterization. In addition, the effect of intra-graft injection of 5 microng of the same agent on the blood flow in aorta-right coronary artery saphenous vein bypass grafts was also evaluated intra-operatively in two patients. The compound induced an increase in the caliber of both normal and stenosed coronary arteries as well as an increase of flow in the grafts.

Sodium nitroprusside as a coronary vasodilator in man: a comparison of the effects of sodium nitroprusside and papaverine hydrochloride on aortocoronary saphenous vein graft flow.

Blood flow in aortocoronary saphenous vein grafts was studied in response to intragraft injection of sodium nitroprusside and papaverine hydrochloride. Following injection of 50 mug of sodium nitroprusside, mean graft flow increased from 40.1 +/- 4.