to do what is necessary to complete a course of action, especially one that is difficult or unpleasant :
She decided not to go through with (= not to have) the operation.
to do what is necessary to complete a course of action, especially one that is difficult or unpleasant :
She decided not to go through with (= not to have) the operation.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005