In 1996 Michael DeBakey advised this Russian to have a bypass, prolonging his presidency & life
: December 2006 [PAR] Dec 25, 2006 ... 31, Dr. Michael E. DeBakey, then 97, was alone at home in Houston in his study 
... and in 1996 was summoned to Moscow by Boris Yeltsin, then the president of 
Russia, to aid in his quintuple heart bypass operation.