1.   Five needed surgery to replace their damaged valves.

2.   One found that leakage from damaged valves decreased in almost half the patients studied, and grew no worse in almost all the rest.

3.   Tiny surgical tools are then used to reroute the flow of blood or repair a damaged valve as the case may be.

4.   In November he underwent a successful operation to repair a damaged valve.

5.   Last month, Kanu was sent to Cleveland Clinic Hospital in the United States where cardiologists repaired the damaged valve.