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Study of TAP and Laparoscopic and Robotic Gynecologic Procedures and Obese Women

Effectiveness of Transversus Abdominis Plane Block in Reducing Immediate Postoperative Pain in Obese Women After Laparoscopic or Robotic Gynecologic Procedures

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01866917
Enrollment
35
Registered
2013-06-03
Start date
2013-04-30
Completion date
2016-04-30
Last updated
2020-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain

Keywords

Transversis Abdominis Plane Block, obese, robotic surgery, laparoscopic surgery

Brief summary

Study the effect of the Transversis Abdominis Plane (TAP) block on pain after surgery for obese women undergoing laparoscopic or robotic gynecologic procedures.

Interventions

DRUGRopivacaine 0.5% 20cc injectate bilaterally
DRUGPlacebo

Sponsors

Montefiore Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* BMI greater than or equal to 30, women undergoing laparoscopic or robotic in-patient procedures

Exclusion criteria

* Conversions, non-obese women

Design outcomes

Primary

MeasureTime frameDescription
Postoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)0, 1, and 2 hoursPain assessments by verbal numerical pain score (NPS) at 0, 1 and 2 hours prior to discharge in the Post Anesthesia Care Unit. The 10 point NPS scale ranges from 0-10 with 0 being equivalent to no pain and a value of 10 being equivalent to the worst pain imaginable
Postoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)4hrs, 8hrs, 12hrs, and 24hrs.Pain assessments by verbal numerical pain score (NPS) at 4, 8, 12 and 24 hours prior to discharge in the Post Anesthesia Care Unit. The 10 point NPS scale ranges from 0-10 with 0 being equivalent to no pain and a value of 10 being equivalent to the worst pain imaginable

Countries

United States

Participant flow

Participants by arm

ArmCount
Transversus Abdominal Plane (Drug B)
Ropivicaine 0.5% 20cc injectate bilaterally
13
Saline (Drug A)
Normal saline 20cc injectate bilaterally
12
Total25

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyPharmacist stopped dispensing treatment46

Baseline characteristics

CharacteristicTransversus Abdominal Plane (Drug B)Saline (Drug A)Total
Age, Continuous45.6 years
STANDARD_DEVIATION 7.97
42.0 years
STANDARD_DEVIATION 7.97
43.8 years
STANDARD_DEVIATION 7.97
Sex: Female, Male
Female
13 Participants12 Participants25 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Postoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)

Pain assessments by verbal numerical pain score (NPS) at 0, 1 and 2 hours prior to discharge in the Post Anesthesia Care Unit. The 10 point NPS scale ranges from 0-10 with 0 being equivalent to no pain and a value of 10 being equivalent to the worst pain imaginable

Time frame: 0, 1, and 2 hours

Population: There were 13 participants receiving the Transversus Abdominis Plane TAP (Group B) and 12 participants receiving the placebo Saline (Group A).

ArmMeasureGroupValue (MEDIAN)
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)0 hour0 score on a scale
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)1 hour3 score on a scale
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)2 hours3 score on a scale
Saline Group APostoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)0 hour5.5 score on a scale
Saline Group APostoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)1 hour3.5 score on a scale
Saline Group APostoperative Numeric Pain Rating Score (NPRS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)2 hours4.5 score on a scale
p-value: 0.574Chi-squared
Primary

Postoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)

Pain assessments by verbal numerical pain score (NPS) at 4, 8, 12 and 24 hours prior to discharge in the Post Anesthesia Care Unit. The 10 point NPS scale ranges from 0-10 with 0 being equivalent to no pain and a value of 10 being equivalent to the worst pain imaginable

Time frame: 4hrs, 8hrs, 12hrs, and 24hrs.

ArmMeasureGroupValue (MEDIAN)
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)4 hours0 score on a scale
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)8 hours1 score on a scale
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)12 hours2 score on a scale
Transversus Abdominis Plane (TAP) Group BPostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)24 hours3 score on a scale
Saline Group APostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)24 hours1.5 score on a scale
Saline Group APostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)4 hours5.5 score on a scale
Saline Group APostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)8 hours2 score on a scale
Saline Group APostoperative Numeric Pain Score (NPS) 0-10 Scale; (0 is Equivalent to no Pain; 10 is Equivalent to the Worst Pain Imaginable)12 hours3 score on a scale
Comparison: TAP has been demonstrated to have a potential role in reducing pain, post-operative opioid requirement, and time to hospital discharge after abdominal hysterectomies and cesarean sections.p-value: 0.825Chi-squared

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026