does the heart rate of patient 27451 until 2008 days ago be normal?
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 = 27451 ) ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'heart rate' and d_items.linksto = 'chartevents' ) and chartevents.valuenum between heart_rate_lower and heart_rate_upper and datetime(chartevents.charttime) <= datetime(current_time,'-2008 day')