Complex sentence: Despite the situation with Telyakovsky and the condition of his health, Petipa still managed to work, as he was constantly sought by the dancers of the Imperial Ballet for coaching, and he even managed to revise some of the dances in his old works.
Split into simpler sentences: Despite the situation with Telyakovsky and the condition of his health, Petipa still managed to work, as he was constantly sought by the dancers of the Imperial Ballet for coaching. He even managed to revise some of the dances in his old works.