Complex sentence: After three weeks, however, her condition worsened and she was taken away in a straitjacket to the Maison de Santé Velpeau in Vésinet where she was considered a danger to both staff and inmates and left in isolation.
Split into simpler sentences: After three weeks, however, her condition worsened and she was taken away in a straitjacket to the Maison de Santé Velpeau in Vésinet. Considered a danger to both staff and inmates, she was left in isolation.