Perioperative Systemic Acetaminophen to Improve Postoperative Quality of Recovery After Ambulatory Breast Surgery

Sponsor
Northwestern University (Other)
Overall Status
Completed
CT.gov ID
NCT01852955
Collaborator
(none)
70
1
2
13
5.4

Study Details

Study Description

Brief Summary

Recent evidence demonstrates that perioperative pain continues to be poorly managed among ambulatory surgical patients. More importantly, few interventions that minimize postoperative pain have also shown to improve patient overall quality of post-surgical recovery. Ketorolac has been used to minimize perioperative pain despite the lack of evidence for its use when administered as a single dose preventive strategy.Ketorolac has also been associated with a higher incidence of perioperative hematomas and the need for surgical re-exploration after breast surgery.

Systemic acetaminophen has become recently available in The United States. In contrast to ketorolac, systemic acetaminophen has not been reported to have adverse side effects on patients undergoing breast surgery. Although evidence suggests that a single dose perioperative acetaminophen reduces postoperative pain, it remains unknown if a single dose intravenous acetaminophen improves postoperative quality of recovery after ambulatory surgery.

The main objective of the current investigation is to evaluate the effect of a single dose systemic acetaminophen on postoperative quality of recovery after ambulatory breast surgery. We also seek to determine if systemic acetaminophen would decrease postoperative pain and the time to hospital discharge in the same population.

Significance: The current project evaluates a potential intervention to improve perioperative pain and recovery after ambulatory breast surgery. Postoperative pain in the ambulatory surgical patients has been shown consistently to be poorly managed.

Condition or Disease Intervention/Treatment Phase
  • Drug: IV acetaminophen
  • Drug: Placebo
N/A

Detailed Description

Patients will be recruited up to the day of surgery. They will be then randomized using a computer generated table of random numbers to two groups: Group A (IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure) and Group B (placebo group-same volume of saline solution administered in the same fashion).This dose has been commonly used in other studies involving IV acetaminophen.6 Both drugs will be identical and will be prepared by hospital pharmacy. After placement of standard ASA monitors, induction will be performed with 0.1mcg/kg/min of remifentanil IV, propofol 1.5-2.5 mg/kg IV and succinylcholine 1-2 mg/kg IV. Tracheal intubation will be performed using a MAC 3 blade and a size 7 endotracheal tube. Maintenance will be achieved with remifentanil infusion titrated to keep the blood pressure within 20% of baseline values and sevoflurane titrated to keep a bispectral index monitor between 40 and 60. Patients will receive ondansetron 4mg IV and dexamethasone 4 mg IV for postoperative nausea and vomiting prophylaxis. In the recovery room patients will receive hydromorphone IV in divided doses to keep pain <4/10(scale where 0 means no pain and 10 is the worst pain) and metoclopramide 10 mg IV as rescue antiemetic. Data will be collected by a research assistant blinded to the group allocation. Data collected will involve pain at PACU arrival (NRS-0-10), presence of nausea and vomiting, severity of nausea and vomiting, total opioid consumption in PACU, time to discharge using a Modified Postanaesthetic Discharge Scoring System (MPADSS) 9, total opioid consumption 24 hours, QoR40 24hours after surgery.8

Study Design

Study Type:
Interventional
Actual Enrollment :
70 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Prevention
Official Title:
Perioperative Systemic Acetaminophen to Improve Postoperative Quality of Recovery After Ambulatory Breast Surgery
Study Start Date :
Nov 1, 2013
Actual Primary Completion Date :
Dec 1, 2014
Actual Study Completion Date :
Dec 1, 2014

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: IV acetaminophen

Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure.

Drug: IV acetaminophen
Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure

Placebo Comparator: Placebo

Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen

Drug: Placebo
Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen

Outcome Measures

Primary Outcome Measures

  1. Quality of Recovery at 24 Hours(QoR-40 Instrument) [24 hours after the surgical procedure]

    Quality of recovery score 24 hours after the surgical procedure. Total score range of 40 (poor recovery) and a score of 200 (good recovery).

Secondary Outcome Measures

  1. Postoperative Opioid Consumption [24 hour]

    Postoperative opioid consumption over 24 hours. Converted into oral mg of morpine equivalents.

  2. Postoperative Pain in the Post Anesthesia Care Unit [Time in the post anesthesia care unit after surgery (average of 5 hours)]

    Postoperative pain within the post anesthesia care unit after surgery. Area under the numeric rating scale for pain versus time curve in the post anesthesia care unit (score * min).Numeric rating scale for pain on a scale of 0-10 (0 is no pain and 10 is high pain) versus time curve in the post anesthesia care unit ( score * min). Area under a curve units of the horizontal axis multiplied by the units of the vertical axis. A higher value indicates more pain and time in the Post Anesthesia Care Unit.The range is 0 pain to x time in minutes x 1 hour to 5 hour ( 60-300 minutes) . The pain scores were collected at 15 minute intervals from the time of admission to the PACU. The area under the NRS pain scale versus time curve was calculated using the trapezoidal method as an indicator of pain burden during early recovery (Graph Pad Prism ver 5.03, Graph Pad Software INC.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 70 Years
Sexes Eligible for Study:
Female
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Outpatient lumpectomy

  • ASA I and II

  • Age between 18-70

Exclusion:
  • Pregnancy

  • History of liver disease

  • Unable to understand the informed consent

  • Chronic pain with use of opioid in the last week

  • Allergy to acetaminophen

Drop-out: surgeon or patient request

Contacts and Locations

Locations

Site City State Country Postal Code
1 Northwestern University Chicago Illinois United States 60611

Sponsors and Collaborators

  • Northwestern University

Investigators

  • Principal Investigator: Gildasio De Oliveira, MD, Northwestern University

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Gildasio De Oliveira, Principal Investigator, Northwestern University
ClinicalTrials.gov Identifier:
NCT01852955
Other Study ID Numbers:
  • STU00078104
First Posted:
May 14, 2013
Last Update Posted:
Mar 14, 2016
Last Verified:
Feb 1, 2016
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Keywords provided by Gildasio De Oliveira, Principal Investigator, Northwestern University
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title IV Acetaminophen Placebo
Arm/Group Description Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure. IV acetaminophen: Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Placebo: Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen
Period Title: Overall Study
STARTED 35 35
COMPLETED 33 32
NOT COMPLETED 2 3

Baseline Characteristics

Arm/Group Title IV Acetaminophen Placebo Total
Arm/Group Description Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure. IV acetaminophen: Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Placebo: Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Total of all reporting groups
Overall Participants 33 32 65
Age, Customized (years) [Mean (Full Range) ]
Age
60
52
55
Sex: Female, Male (Count of Participants)
Female
33
100%
32
100%
65
100%
Male
0
0%
0
0%
0
0%
Region of Enrollment (participants) [Number]
United States
33
100%
32
100%
65
100%

Outcome Measures

1. Primary Outcome
Title Quality of Recovery at 24 Hours(QoR-40 Instrument)
Description Quality of recovery score 24 hours after the surgical procedure. Total score range of 40 (poor recovery) and a score of 200 (good recovery).
Time Frame 24 hours after the surgical procedure

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title IV Acetaminophen Placebo
Arm/Group Description Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure. IV acetaminophen: Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Placebo: Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen
Measure Participants 33 32
Median (Inter-Quartile Range) [units on a scale]
189
183
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection IV Acetaminophen, Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value .01
Comments
Method Wilcoxon (Mann-Whitney)
Comments
2. Secondary Outcome
Title Postoperative Opioid Consumption
Description Postoperative opioid consumption over 24 hours. Converted into oral mg of morpine equivalents.
Time Frame 24 hour

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title IV Acetaminophen Placebo
Arm/Group Description Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure. IV acetaminophen: Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Placebo: Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen
Measure Participants 33 32
Median (Inter-Quartile Range) [oral mg of morpine equivalents]
20
30
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection IV Acetaminophen, Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value .04
Comments
Method Wilcoxon (Mann-Whitney)
Comments
3. Secondary Outcome
Title Postoperative Pain in the Post Anesthesia Care Unit
Description Postoperative pain within the post anesthesia care unit after surgery. Area under the numeric rating scale for pain versus time curve in the post anesthesia care unit (score * min).Numeric rating scale for pain on a scale of 0-10 (0 is no pain and 10 is high pain) versus time curve in the post anesthesia care unit ( score * min). Area under a curve units of the horizontal axis multiplied by the units of the vertical axis. A higher value indicates more pain and time in the Post Anesthesia Care Unit.The range is 0 pain to x time in minutes x 1 hour to 5 hour ( 60-300 minutes) . The pain scores were collected at 15 minute intervals from the time of admission to the PACU. The area under the NRS pain scale versus time curve was calculated using the trapezoidal method as an indicator of pain burden during early recovery (Graph Pad Prism ver 5.03, Graph Pad Software INC.
Time Frame Time in the post anesthesia care unit after surgery (average of 5 hours)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title IV Acetaminophen Placebo
Arm/Group Description Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure. IV acetaminophen: Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Placebo: Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen
Measure Participants 33 32
Median (Inter-Quartile Range) [(units on a scale * minutes]
255
240
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value .36
Comments
Method Wilcoxon (Mann-Whitney)
Comments

Adverse Events

Time Frame Development of nausea 24 hours after surgery.
Adverse Event Reporting Description
Arm/Group Title IV Acetaminophen Placebo
Arm/Group Description Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure. IV acetaminophen: Administration of IV acetaminophen 1000 mg over 15 minutes at the start of surgical closure Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen Placebo: Administration of placebo (sterile normal saline)group-same volume of saline solution administered in the same fashion as the acetaminophen
All Cause Mortality
IV Acetaminophen Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN)
Serious Adverse Events
IV Acetaminophen Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/33 (0%) 0/32 (0%)
Other (Not Including Serious) Adverse Events
IV Acetaminophen Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 16/33 (48.5%) 12/32 (37.5%)
Gastrointestinal disorders
Vomiting 3/33 (9.1%) 3 1/32 (3.1%) 1
Nausea 13/33 (39.4%) 13 11/32 (34.4%) 11

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Gildasio De Oliveira, M.D.
Organization Northwestern University
Phone 312-695-4858
Email gjr@northwestern.edu
Responsible Party:
Gildasio De Oliveira, Principal Investigator, Northwestern University
ClinicalTrials.gov Identifier:
NCT01852955
Other Study ID Numbers:
  • STU00078104
First Posted:
May 14, 2013
Last Update Posted:
Mar 14, 2016
Last Verified:
Feb 1, 2016