Body mass index less than 18 kg/m2 or greater than 30 kg/m2.
History of previous open-laparotomy.
Surgery with major complication, or need blood transfusion.
History of hypersensitivity or adverse reaction to local anesthetics, opioid, or any ingredient of the medications administered in this study.
Severe comorbidity.
Chronic preoperative opioid consumption.
Pregnant or breastfeeding.
Inability to use the PCA device.

NCT03296488_exc_T1
Measurement
Body mass index
NCT03296488_exc_T2
Value
less than 18 kg/m2
NCT03296488_exc_T3
Value
greater than 30 kg/m2
NCT03296488_exc_T4
Scope
less than 18 kg/m2 or greater than 30 kg/m2
NCT03296488_exc_T5
Procedure
open-laparotomy
NCT03296488_exc_T6
Temporal
previous
NCT03296488_exc_T7
Observation
History
NCT03296488_exc_T8
Condition
major complication
NCT03296488_exc_T9
Procedure
Surgery
NCT03296488_exc_T10
Mood
need
NCT03296488_exc_T11
Condition
blood transfusion
NCT03296488_exc_T12
Scope
major complication, or need blood transfusion
NCT03296488_exc_T13
Condition
hypersensitivity
NCT03296488_exc_T14
Condition
adverse reaction
NCT03296488_exc_T15
Drug
local anesthetics
NCT03296488_exc_T16
Drug
opioid
NCT03296488_exc_T17
Drug
ingredient of the medications administered in this study
NCT03296488_exc_T18
Scope
local anesthetics, opioid, or any ingredient of the medications administered in this study
NCT03296488_exc_T19
Scope
hypersensitivity or adverse reaction
NCT03296488_exc_T20
Condition
comorbidity
NCT03296488_exc_T21
Qualifier
Severe
NCT03296488_exc_T22
Qualifier
Chronic
NCT03296488_exc_T23
Temporal
preoperative
NCT03296488_exc_T24
Drug
opioid
NCT03296488_exc_T25
Condition
Pregnant
NCT03296488_exc_T26
Observation
breastfeeding
NCT03296488_exc_T27
Condition
Inability
NCT03296488_exc_T28
Procedure
use the PCA