Trial Outcomes & Findings for Satisfactory Analgesia Minimal Emesis in Day Surgeries (NCT NCT02223377)

NCT ID: NCT02223377

Last Updated: 2023-12-11

Results Overview

Our combined primary outcome will be number of patients with SAME, as compared between the 2 groups. Analgesia will be based on Numerical Analogue Scale for Pain 0-10 (appendix 3), and Post-operative nausea and vomiting will be based on Verbal Descriptive Scale 0-5 (appendix 3). These observations will be made at the end of 2 hrs or before (corresponding to the time of discharge from PACU), by the PACU nurse.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

402 participants

Primary outcome timeframe

At 2hrs or at the time of discharge from PACU

Results posted on

2023-12-11

Participant Flow

Participant milestones

Participant milestones
Measure
Morphine
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Overall Study
STARTED
199
203
Overall Study
COMPLETED
199
203
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=203 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Total
n=402 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=199 Participants
0 Participants
n=203 Participants
0 Participants
n=402 Participants
Age, Categorical
Between 18 and 65 years
182 Participants
n=199 Participants
175 Participants
n=203 Participants
357 Participants
n=402 Participants
Age, Categorical
>=65 years
17 Participants
n=199 Participants
28 Participants
n=203 Participants
45 Participants
n=402 Participants
Age, Continuous
46.1 years
STANDARD_DEVIATION 13.8 • n=199 Participants
47.1 years
STANDARD_DEVIATION 14.0 • n=203 Participants
46.6 years
STANDARD_DEVIATION 13.9 • n=402 Participants
Sex: Female, Male
Female
132 Participants
n=199 Participants
126 Participants
n=203 Participants
258 Participants
n=402 Participants
Sex: Female, Male
Male
67 Participants
n=199 Participants
77 Participants
n=203 Participants
144 Participants
n=402 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
Canada
199 Participants
n=199 Participants
203 Participants
n=203 Participants
402 Participants
n=402 Participants
Body Mass Index (BMI)
27.55 kg/m^2
STANDARD_DEVIATION 4.00 • n=199 Participants
27.06 kg/m^2
STANDARD_DEVIATION 4.27 • n=203 Participants
27.37 kg/m^2
STANDARD_DEVIATION 4.14 • n=402 Participants
Apfel score
2.6 units on a scale
STANDARD_DEVIATION 0.9 • n=199 Participants
2.5 units on a scale
STANDARD_DEVIATION 1.0 • n=203 Participants
2.6 units on a scale
STANDARD_DEVIATION 0.9 • n=402 Participants
Depression score
2 units on a scale
n=199 Participants
2 units on a scale
n=203 Participants
2 units on a scale
n=402 Participants
Anxiety score
6 units on a scale
n=199 Participants
6 units on a scale
n=203 Participants
6 units on a scale
n=402 Participants
Catastrophising score
9 units on a scale
n=199 Participants
10 units on a scale
n=203 Participants
9 units on a scale
n=402 Participants
Preoperative pain in the operative area
83 Participants
n=199 Participants
83 Participants
n=203 Participants
166 Participants
n=402 Participants
Chronic pain in other areas
35 Participants
n=199 Participants
33 Participants
n=203 Participants
68 Participants
n=402 Participants

PRIMARY outcome

Timeframe: At 2hrs or at the time of discharge from PACU

Our combined primary outcome will be number of patients with SAME, as compared between the 2 groups. Analgesia will be based on Numerical Analogue Scale for Pain 0-10 (appendix 3), and Post-operative nausea and vomiting will be based on Verbal Descriptive Scale 0-5 (appendix 3). These observations will be made at the end of 2 hrs or before (corresponding to the time of discharge from PACU), by the PACU nurse.

Outcome measures

Outcome measures
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Our Combined Primary Outcome Will be Number of Patients With Same Analgesia Minimal Emesis, as Compared Between the 2 Groups.
172 Participants
175 Participants

SECONDARY outcome

Timeframe: At 2hrs or at the time of discharge from PACU

Severe itching measured as visual analog scale score \> 5 on a 0-10 Visual Analog Scale, where 0 = no itching, and 10 = worst itching imaginable

Outcome measures

Outcome measures
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Number of Patients With Severe Itching
2 Participants
5 Participants

SECONDARY outcome

Timeframe: At 2hrs or at the time of discharge from PACU

Ramsay Sedation Scale 0-6

Outcome measures

Outcome measures
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Severe Sedation
5 Participants
8 Participants

SECONDARY outcome

Timeframe: At 2hrs or at the time of discharge from PACU

Presence of Respiratory Rate below 10 and/or Presence of Oxygen Saturation \<90

Outcome measures

Outcome measures
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Severe Respiratory Depression
11 Participants
10 Participants

SECONDARY outcome

Timeframe: At 2hrs or at the time of discharge from PACU

Use of rescue drug for pain

Outcome measures

Outcome measures
Measure
Morphine
n=194 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Patients Requesting Oral Analgesia in the Day Surgery Unit
128 Participants
135 Participants

SECONDARY outcome

Timeframe: 5 hours post-admit to hospital

For a day surgery case, from the time of hospital admittance to discharge from hospital is an average 5 hours.

Outcome measures

Outcome measures
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Mean Dose of Analgesic Used
5.7 Equivalent morphine unit
Standard Deviation 3.9
4.9 Equivalent morphine unit
Standard Deviation 3.3

SECONDARY outcome

Timeframe: At 5 hours post-admit to hospital

Patient satisfaction is measured on a 0-10 visual analogue scale, where 0=completely unsatisfied; 10=extremely satisfied

Outcome measures

Outcome measures
Measure
Morphine
n=184 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=177 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Patient Satisfaction Score
9.1 score on a scale
Standard Deviation 1.8
9.3 score on a scale
Standard Deviation 1.2

SECONDARY outcome

Timeframe: At 2hrs or at the time of discharge from PACU

For a day surgery case, from the time out of operating room to discharge from PACU is an average 2 hours.

Outcome measures

Outcome measures
Measure
Morphine
n=198 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=201 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Time to Discharge From PACU
91.2 Minutes
Standard Deviation 58.6
92.8 Minutes
Standard Deviation 50.6

SECONDARY outcome

Timeframe: At 5 hours post-admit to hospital

For a day surgery case, from the time of hospital admittance to discharge from hospital is an average 5 hours.

Outcome measures

Outcome measures
Measure
Morphine
n=199 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=197 Participants
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Time to Discharge From Hospital
3.2 Hours
Standard Deviation 1.1
3.3 Hours
Standard Deviation 1.1

Adverse Events

Morphine

Serious events: 11 serious events
Other events: 7 other events
Deaths: 0 deaths

Hydromorphone

Serious events: 10 serious events
Other events: 13 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Morphine
n=199 participants at risk
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 participants at risk
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Respiratory, thoracic and mediastinal disorders
Respiratory Depression
5.5%
11/199 • At 2 hours or at the time of discharge from PACU, and at 24 h after surgery
5.0%
10/202 • At 2 hours or at the time of discharge from PACU, and at 24 h after surgery

Other adverse events

Other adverse events
Measure
Morphine
n=199 participants at risk
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Morphine: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Hydromorphone
n=202 participants at risk
Analgesia with equipotent doses of Morphine and Hydromorphone will be administered in titrated doses. Doses are 1ml=1mg of morphine or 0.2 mg of hydromorphone. Potency ratio of 1:5 (M: HM). 0.05mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml) Hydromorphone: Participant to be asked for their pain score, and if it is more than 4 out of 10 (NAS): to receive the 1st dose within 5 minutes after coming to PACU: 0.04mg/kg morphine units (rounding off to the nearest 1 ml or 0.5 ml); with a maximum of 3 mg of morphine equivalents. Repeat doses: 0.02 mg/kg morphine units every 5-10 minutes to titrate for analgesia and side effects (rounding off to the nearest 1 ml or 0.5 ml)
Skin and subcutaneous tissue disorders
Severe itching
1.0%
2/199 • At 2 hours or at the time of discharge from PACU, and at 24 h after surgery
2.5%
5/202 • At 2 hours or at the time of discharge from PACU, and at 24 h after surgery
Nervous system disorders
Severe sedation
2.5%
5/199 • At 2 hours or at the time of discharge from PACU, and at 24 h after surgery
4.0%
8/202 • At 2 hours or at the time of discharge from PACU, and at 24 h after surgery

Additional Information

Dr. Thuvaraha Vanniyasingam

Department of Anesthesia, McMaster University, Canada

Phone: (905) 525-9140

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place