Complex sentence: Komissarova had major surgery for six and a half hours, the Russian Federation for which she was competing said "Doctors carried out the necessary examination and took the decision to operate on her on the spot".
Split into simpler sentences: Komissarova had major surgery for six and a half hours. The Russian Federation, for which she was competing, said "Doctors carried out the necessary examination and took the decision to operate on her on the spot".