###HUMAN: when was the last time patient 027-165214 had the minimum systemicdiastolic on the current intensive care unit visit., ###ASSISTANT: SELECT vitalperiodic.observationtime FROM vitalperiodic WHERE vitalperiodic.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '027-165214') AND patient.unitdischargetime IS NULL) AND NOT vitalperiodic.systemicdiastolic IS NULL ORDER BY vitalperiodic.systemicdiastolic, vitalperiodic.observationtime DESC LIMIT 1