what was the name of the procedure, which patient 41393 was last received until 2 years ago?
select d_icd_procedures.short_title from d_icd_procedures where d_icd_procedures.icd9_code in ( select procedures_icd.icd9_code from procedures_icd where procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 41393 ) and datetime(procedures_icd.charttime) <= datetime(current_time,'-2 year') order by procedures_icd.charttime desc limit 1 )