так как катю лечили от другой болез

так как катю лечили от другой болезни, то Катя не избежала осложнений

Результаты (английский) 1:

as Katya treated from another illness, Katia has not escaped complications

Результаты (английский) 2:

since Kate was treated for another illness, Katya did not avoid complications

Результаты (английский) 3:

so who was being treated for other illnesses, have not survived.