when was the last time the arterial bp [systolic] of patient 10855 was greater than 141.0, on the current intensive care unit visit?
select chartevents.charttime 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 = 10855 ) and icustays.outtime is null ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'arterial bp [systolic]' and d_items.linksto = 'chartevents' ) and chartevents.valuenum > 141.0 order by chartevents.charttime desc limit 1