no consent
known allergy to administered opioid
contraindications to epidural analgesia
coagulopathies including platelet count of less than 100,000
spine surgery in past

NCT03344042_exc_T2
Condition
allergy
NCT03344042_exc_T3
Drug
opioid
NCT03344042_exc_T4
Condition
contraindications
NCT03344042_exc_T5
Procedure
epidural analgesia
NCT03344042_exc_T6
Condition
coagulopathies
NCT03344042_exc_T7
Measurement
platelet count
NCT03344042_exc_T8
Value
less than 100,000
NCT03344042_exc_T9
Scope
platelet count of less than 100,000
NCT03344042_exc_T10
Procedure
spine surgery
NCT03344042_exc_T11
Temporal
in past