How Cities Grow: Dispersion, not Densification. by Wendell Cox 10/15/2011. Analysts occasionally note that urban areas (cities) are becoming larger and denser. This is only half right.
1 Cost per patient was $14,469 for mitral valve replacement, and $11,606 for mitral valve repair. 2  At East Carolina University, surgeons say that the hospital gets paid a fixed fee of $25,000 for the total cost of each heart-valve repair regardless of whether robotics are used.
The purpose of a valve job is to resurface the poppet valves and their seats, which control the flow of air and fuel to move the pistons. On newer engines (V6 or V8), a valve job can cost up to $125 per valve that needs repairing, with the cost increasing for engines with over 12 valves.