Undisturbed upright stance control in the elderly: Part 2. Postural-control impairments of elderly fallers.

A common way of predicting falling risks in elderly people can be to study center of pressure (CP) trajectories during undisturbed upright stance maintenance. By estimating the difference between CP and center of gravity (CG) motions (CP - CGv), one can estimate the neuromuscular activity. The results of this study, which included 34 sedentary elderly persons aged over 75 years (21 fallers and 13 nonfallers), demonstrated significantly increased CGh and CP - CGv motions in both axes for the fallers.

Undisturbed upright stance control in the elderly: Part 1. Age-related changes in undisturbed upright stance control.

The authors investigated age-related changes in postural control in 33 healthy young adults (18-31 years), 29 seniors (62-75 years), and 22 elderly people (75-96 years). A force platform recorded the results. The horizontal motions of the center of gravity (CGh) and their difference in the plane of support CP - CGv were deduced from the complex center of pressure (CP) trajectories.

Off-pump coronary bypass surgery for left main coronary artery stenosis 10 years after heart transplantation: case report.

A patient with asymptomatic left main coronary artery stenosis 10 years after heart transplantation was treated successfully with off-pump coronary bypass surgery using both mammary arteries. New advances in bypass surgery may decrease the risk of revascularization in cardiac transplant recipients.

Should we still perform angioplasty and stenting of an unprotected left main coronary artery stenosis in heart transplant patients? Two new cases and a review of the literature.

Coronary balloon angioplasty with stent implantation has emerged as a possible alternative to bypass grafting or repeat transplantation in left main coronary stenosis in heart transplant patients. We report 2 new cases of stent implantation for unprotected and isolated left main stenosis in heart transplant patients. Despite an initially successful procedure, restenosis prompted the performance of bypass surgery in both patients.