had patient 27964 ever had a arterial bp [diastolic] of less than 58.0 until 147 months ago?
select count(*)>0 from chartevents where chartevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 27964 ) ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'arterial bp [diastolic]' and d_items.linksto = 'chartevents' ) and chartevents.valuenum < 58.0 and datetime(chartevents.charttime) <= datetime(current_time,'-147 month')