Late follow-up after repair of left ventricular aneurysm and (usually) associated coronary bypass grafting.

This study assesses clinical and operative data (LV) aneurysm was repaired to determine factors that might predict in-hospital and long-term outcome. Long-term follow-up study was obtained in 296 of 298 patients undergoing LV aneurysm repair with or without coronary artery bypass grafting between 1974 and 1986. No patient had sustained a myocardial infarction within 2 weeks of surgery or was undergoing other concurrent cardiac surgery. The average age of the study patients was 57 +/- 9 years and the average ejection fraction was 35 +/- 13%. Ninety percent of the patients underwent concurrent bypass grafting, with an average of 2.2 +/- 1.3 grafts placed. Fourteen (5%) patients died in the hospital, with most deaths attributable to LV dysfunction. Advanced age and less extensive revascularization were correlates of in-hospital mortality. The 10-year survival was 57%, myocardial infarction-free survival 43%, and freedom from death, myocardial infarction and reoperative coronary surgery 41%. Advanced age, systemic hypertension, significant left main coronary artery narrowing and emergent operative status were multivariate correlates of long-term mortality. A low-risk population was defined by the absence of these risk factors, and high-risk by the presence of greater than or equal to 1 risk factors. The 10-year survival was 71% in the low-risk and 41% in the high-risk groups (p = .0006). The 10-year myocardial infarction free survival was 55% in the low-risk and 31% in the high-risk groups (p = 0.0017). LV aneurysm repair may be performed with acceptable in-hospital mortality, and the long-term risk may be stratified.(ABSTRACT TRUNCATED AT 250 WORDS)

Catastrophic thrombosis of porcine aortic bioprostheses.

Hemodynamically critical thrombotic stenosis of porcine bioprosthetic valves in the aortic position without thrombotic predisposition is rare. Two patients at our institution abruptly manifested thrombotic stenosis of porcine bioprosthetic valves in the aortic position within 3 months of implantation without apparent predisposing factors. Clinicians should consider this rare but catastrophic complication in the appropriate setting.

Late outcome of multivessel coronary artery disease after angioplasty or bypass surgery.

Background. Results from randomized trials to determine optimal treatment for patients with multivessel coronary disease are not yet available. Thus, the early and late outcomes of 191 PTCA and 221 CABG patients done in 1985-86 were evaluated. Methods and Results. CABG patients selected had more coronary risk factors and more severe coronary artery disease compared to PTCA patients. Comparison of the initial outcome showed that clinical success without major cardiovascular events was similar (93.7% for PTCA vs. 90.0% for CABG; p=n.s.). Five year followup was obtained in 99.0% of PTCA patients and 94.4% of CABG patients. In the PTCA group, 89.8% were alive, 4.8% had sustained an MI, and repeat revascularization was required in 46.8%. In the CABG group, 87.1% were alive, 3.2% had had a MI, and 3.5% required repeat revascularization. Statistical comparison demonstrated no difference between the groups in survival or late cardiac events, but rate of repeat revascularization was significantly higher for PTCA patients (p less than 0.0001). Incompleteness of revascularization (p<0.01) was independently associated with an increased need for repeat revascularization in the PTCA group. In the CABG group, depressed left ventricular function (p less than 0.001) and female sex (p<0.01) were associated with lower survival rates. An analysis of cost per patient showed that the strategies were comparable. Conclusions. PTCA and CABG in multivessel disease patients have similar early results and comparable rates of survival and late cardiac events. Significantly more repeat revascularization is required in PTCA patients to maintain these results.(ABSTRACT TRUNCATED AT 250 WORDS)

Brachial rotational atherectomy.

The brachial approach adds a new dimension to rotational atherectomy. The two cases presented included a large ectopic right coronary artery and a right internal mammary graft where both outcomes were successful. These cases demonstrate that the brachial approach can facilitate rotational atherectomy when greater guide support is necessary.

Rotational ablation of chronic coronary occlusions.

Rotational ablation was performed successfully in three chronic coronary occlusions. At 3 months follow-up, two of the three lesions were patent. These cases illustrate the overall advantages and unique technical aspects of this device.