Title

Comparing Effectiveness of IV vs Oral Acetaminophen Given Perioperatively for Lap Choles for Pain Control,
A Prospective, Randomized, Double Blind, Comparative-effectiveness Study Comparing Perioperative Administration of Oral Versus Intravenous Acetaminophen for Laparoscopic Cholecystectomy
  • Phase

    N/A
  • Study Type

    Interventional
  • Intervention/Treatment

    acetaminophen ...
  • Study Participants

    67
The purpose of the study is to learn whether perioperative IV (intravenous) administration of acetaminophen (commonly referred to as Tylenol) shows any different clinical outcomes over the oral (by mouth) administration of acetaminophen for a patient having a laparoscopic cholecystectomy. If improved pain scores occur with the administration of IV acetaminophen, it may result in fewer requests for pain-related intervention such as other oral pain medications.
Subjects were enrolled following the listed inclusion and exclusion criteria.

Subjects Eligibility Criteria:

Inclusion Criteria:

Male and female patients ASA I - III . 18 years of age and older

Exclusion Criteria:

Chronic pain syndromes (pain symptoms lasting greater than 3 months), previous abdominal surgery Chronic home narcotic use (patient-reported narcotic use for greater than 3 months) Previous Bowel resection, colon surgery, stomach surgery

. Liver disease (AST or ALT greater than 3 times upper limit of normal), on labs closest to surgical date or within 6 months prior to surgery

Severe renal disease (creatinine clearance less than 30 mL/min), on labs closest to surgical date or within 6 months prior to surgery

Open or emergency surgery (non-scheduled surgery, surgery that must be performed within 6 hours for this particular surgery)

Prior NSAIDS (Non-Steroid Anti-inflammatory Drugs) including COX-2 agents use within the last 24 hours

Use of intraoperative NSAIDs

Contraindication to study drug (including allergic reaction or hypersensitivity to acetaminophen or any of its components;

Taking a medication with known interactions with acetaminophen

Taking chronic oral acetaminophen, greater than 6 months on a daily basis at a dose greater than 3000mg/day

Pregnancy

Current or past alcohol abuse (within the past 2 years)
Study Started
Feb 28
2013
Primary Completion
Jun 30
2015
Study Completion
Sep 30
2015
Results Posted
Jun 06
2016
Estimate
Last Update
Jun 06
2016
Estimate

Drug 2 capsules Oral Tylenol 2000 mg and IV "salt water"

The participants randomized to receive the '2 capsules Oral Acetaminophen 500 mg and IV "salt water repeated 4 hours after that dose to equal 2000mg. A pre-op pain score was obtained and pain scores every 15 min x 1 hour then per recovery routine and they did a 24 hour home diary to record pain scores for 24 hours post surgery. Their opioid morphine equivalent was recorded intraoperatively, recovery and at home. This was compared to the other group receiving IV acetaminophen.and the pain scores and morphine equivalents were collected the same as in the comparative group. Each group received a placebo version oral or iv accordingly.

  • Other names: Acetaminophen is comercially referred to as Tylenol.

Drug IV tylenol 1000mg and 2 oral capsule "sugar pills"

IV acetaminophen 1000mg and 2 oral capsule "sugar pills were given to participants that were randomized to receive the IV acetaminophen. The same collection of pain scores and morphine equivalents was completed the same as the other group.

  • Other names: Acetaminophen is comercially referred to as Tylenol.

Group 1 Experimental

Group 1 will receive IV acetaminophen 1000mg plus 2 oral capsules "sugar pills" 1 hour prior to surgical incision and 4 hours after initial dose, for a total of two doses of acetaminophen totaling or equaling 2000mg

Group 2 Experimental

Group 2 will receive an IV "salt water" infusion plus 2 capsules of oral acetaminophen 1 hour prior to surgical incision and 4 hours after initial dose, for a total of two doses totaling or equaling 2000mg.

Criteria

Inclusion Criteria:

Male and female patients ASA I - III (A system used by anesthesiologists to stratify severity of patients' underlying disease and potential for suffering complications from general anesthesia ), 18 years of age and older
Patient must be scheduled for laparoscopic cholecystectomy

Exclusion Criteria:

Chronic pain syndromes (pain symptoms lasting greater than 3 months), previous abdominal surgery
Chronic home narcotic use (patient-reported narcotic use for greater than 3 months)
Liver disease (AST or ALT greater than 3 times upper limit of normal), on labs closest to surgical date or within 6 months prior to surgery
Severe renal disease (creatinine clearance less than 30 mL/min), on labs closest to surgical date or within 6 months prior to surgery
Open or emergency surgery (non-scheduled surgery, surgery that must be performed within 6 hours for this particular surgery)
Prior NSAIDS(Non-Steroid Anti-inflammatory Drugs) including COX-2 agents use within the last 24 hours
Use of intraoperative NSAIDs
Contraindication to study drug (including allergic reaction or hypersensitivity to acetaminophen or any of its components;
On a medication with known interactions with acetaminophen
On chronic oral acetaminophen, greater than 6 months on a daily basis at a dose greater than 3000mg/day
Pregnancy
Current or past alcohol abuse (within the past 2 years)

Summary

Group 1

Group 2

All Events

Event Type Organ System Event Term Group 1 Group 2

Pain

Pain after treatment with IV versus oral tylenol will be assessed via pain scores utilizing an numerical rating scale (NRS) )0-10 with 0 as no pain and 10 as worst pain with 5 as moderate pain and faces accompanied the scores with full smile on no pain to tears and frown on worst pain.

Group 1

Arrival in PACU

1.61
NRS scale (Mean)
Standard Deviation: 2.78

Discharge+12hrs

5.09
NRS scale (Mean)
Standard Deviation: 2.60

Discharge+18hrs

4.12
NRS scale (Mean)
Standard Deviation: 2.62

Discharge+24hrs

3.96
NRS scale (Mean)
Standard Deviation: 2.47

Discharge+6hrs

4.81
NRS scale (Mean)
Standard Deviation: 2.24

Discharge from PACU

2.36
NRS scale (Mean)
Standard Deviation: 1.73

pre-op

1.41
NRS scale (Mean)
Standard Deviation: 2.09

Group 2

Arrival in PACU

2.32
NRS scale (Mean)
Standard Deviation: 2.73

Discharge+12hrs

4.71
NRS scale (Mean)
Standard Deviation: 2.08

Discharge+18hrs

4.21
NRS scale (Mean)
Standard Deviation: 2.07

Discharge+24hrs

4.09
NRS scale (Mean)
Standard Deviation: 1.77

Discharge+6hrs

4.81
NRS scale (Mean)
Standard Deviation: 1.69

Discharge from PACU

2.64
NRS scale (Mean)
Standard Deviation: 1.56

pre-op

1.73
NRS scale (Mean)
Standard Deviation: 1.93

Total Opioid Consumption From Time of First Waking to T24

Pain diary will be filled out every 6 hours for 24 hours after discharge in which the following will be recorded: Opioid consumption from first waking to T4 Total opioid consumption from T0 to T4 Total opioid consumption from time of first waking to T24

Group 1

Home Consumption

36.96
milligrams (Mean)
Standard Deviation: 33.19

PACU

13.46
milligrams (Mean)
Standard Deviation: 23.20

Total consumption from peration to 24 hrs

153.38
milligrams (Mean)
Standard Deviation: 57.32

Group 2

Home Consumption

39.56
milligrams (Mean)
Standard Deviation: 37.56

PACU

17.41
milligrams (Mean)
Standard Deviation: 17.91

Total consumption from peration to 24 hrs

163.86
milligrams (Mean)
Standard Deviation: 78.04

Total

50
Participants

Age, Continuous

40.32
years (Mean)
Standard Deviation: 11.39

Age, Categorical

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

IV Acetaminophen 1000mg + 2 Oral "Sugar Pills"

Oral Acetaminophen 2 Capsules + "IV Salt Water"

Drop/Withdrawal Reasons

IV Acetaminophen 1000mg + 2 Oral "Sugar Pills"

Oral Acetaminophen 2 Capsules + "IV Salt Water"