In cardiac transplantation, the transport time between harvest and recipient is limited by the viability of the donor heart. The problem of viability is a consistent limitation in cardiac transplantation. Since the 1960s, techniques, including hypothermia, perfusion, oxygenation, and hyperbaria, have been used to prolong the preservation of the transplantable heart. Continuing development of ca...

In this paper w e discuss three little known letters on the Konigsberg bridges problem. These letters indicate more clearly Euler’s attitude to the problem and to his solution of it.

the purpose of this study was to evaluate the early and late outcome after total correction of tetralogy of fallot (tof) in 101 consecutive patients with a mean age of 8.23 ± 4.90 years underwent repair of surgery at one institution between 1995 and 2006. forty two patients had initial palliative operations. a transannular patch was inserted in 60 (58.5%) patients. risk factors for operative mo...

Objective- The aim of the present survey was to evaluate whether the results of cardiac measurements using the VHS are a useful indicator of the origin of normal rabbits. Design- Experimental study. Animals- Forty seven adult healthy New Zealand White rabbits (25 male, 22 female) with age 10-18 months and weight 1.5-2.5 Kg. Procedures- To assess the influence of breed on the vertebral heart ...

Background: This study aims to evaluate the effect of exercise training on heart rate variability (HRV) and to determine the correlation between parameters of HRV and the ejection fraction in patients with heart failure after percutaneous coronary intervention.Material and Methods: Fifty patients with left ventricular ejection fraction ≤ 40% undergone percutaneous coronary intervention were r...