1.   Among the operations that might be postponed are those for cosmetic procedures, cardiac bypass surgery, heart valve replacements, hip replacements and colon surgery.

2.   As a result, the boy now needs a heart valve replacement.

3.   At the New York University Medical Center, surgeons are already using it to perform valve replacements and multiple-vessel bypass operations.

4.   Dr. C. Walton Lillehei, a pioneer in open-heart surgery, valve replacements and the electronic pacemaker, died on Monday at his home in St. Paul.

5.   He had needed an aortic valve replacement earlier in the year, but decided to forgo that after consulting with specialists.

6.   He noted that he is allergic to some medications and that he has a pacemaker and had an aortic valve replacement.

7.   It will continue to be used for more complex procedures and surgeries that involve both a valve replacement and bypass grafting, for instance.

8.   Last week, Drs. Kenneth Begelman and Jeffrey Newman performed the first minimally invasive valve replacement in Palm Beach County at Delray Community Hospital.

9.   Medtronic Inc. today won the recommendation of a Food and Drug Administration advisory panel to sell its stent-free heart valve replacement.

10.   Mitral valve repairs are one of the more common heart operations, although they are done less often than coronary bypasses and aortic valve replacements.