Trial Outcomes & Findings for Study of Anaesthesia Costs and Recovery Profiles (NCT NCT02920749)

NCT ID: NCT02920749

Last Updated: 2018-02-06

Results Overview

drugs of sevoflurane or total intravenous anaesthesia without or with BIS and TOF monitoring : fentanyl, sevoflurane, propofol 1%, atracurium in milligrams

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

120 participants

Primary outcome timeframe

at induction one dose and during anaesthesia mg/1 hour

Results posted on

2018-02-06

Participant Flow

In this study we compared the perioperative hemodynamic parameters, recovery profiles and cost containment of sevoflurane and propofol based general anaesthesia with controlled hypotension for otorhinolaryngeal surgery.

We studied patients with ASA physical status I or II, their age between was between 18 and 65 years. Individuals with a history of pulmonary, psychiatric, cerebrovascular or congenital neuromuscular disease were excluded from the study. Patients were blocked randomised to one of four anaesthetic treatment groups with closed envelops.

Participant milestones

Participant milestones
Measure
Group A
Anaesthesia was maintained with sevoflurane. Initial and maintenance fresh gas flow was 4 and 1 l/min, respectively. Sevoflurane and fentanyl dosing was adjusted for the same MAP range for controlled hypotension within 60-85 mmHg. Atracurium was administered at regular intervals.
Group B
In this group anaesthesia was maintained with sevoflurane. Initial and maintenance fresh gas flow was 4 and 1 l/min, respectively. The depth of anaesthesia (BIS® Quatro Brain Monitoring Sensor, Covidien) and the neuromuscular blocking status (Infinity®, Trident® NMT SmartPod®, Dräger Medical) was monitored too. Sevoflurane and fentanyl dosing was set to maintain target BIS levels of 40 to 60 and MAP for controlled hypotension within 60-85 mmHg. Neuromuscular blocking was maintained with a TOF monitor at the level of one or no response.
Group C
Anaesthesia was maintained with propofol. Propofol was administered according to protocol. Propofol and fentanyl dosing was adjusted for the same MAP range. Atracurium was administered at regular intervals.
Group D
In this group anaesthesia was maintained with propofol. The depth of anaesthesia (BIS® Quatro Brain Monitoring Sensor, Covidien) and the neuromuscular blocking status (Infinity®, Trident® NMT SmartPod®, Dräger Medical) was monitored too. Propofol and fentanyl dosing was set to maintain target BIS levels of 40 to 60 and MAP for controlled hypotension within 60-85 mmHg. Neuromuscular blocking was maintained with a TOF monitor at the level of one or no response.
Overall Study
STARTED
30
30
30
30
Overall Study
COMPLETED
30
30
30
30
Overall Study
NOT COMPLETED
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Study of Anaesthesia Costs and Recovery Profiles

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group A
n=30 Participants
General anaesthesia was maintained with sevoflurane.
Group B
n=30 Participants
Anaesthesia was maintained with sevoflurane and the depth of anaesthesia (BIS® Quatro Brain Monitoring Sensor, Covidien) and the neuromuscular blocking status (Infinity®, Trident® NMT SmartPod®, Dräger Medical) was monitored too.
Group C
n=30 Participants
General anaesthesia was maintained with propofol.
Group D
n=30 Participants
Anaesthesia was maintained with propofol and the depth of anaesthesia (BIS® Quatro Brain Monitoring Sensor, Covidien) and the neuromuscular blocking status (Infinity®, Trident® NMT SmartPod®, Dräger Medical) was monitored too.
Total
n=120 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
30 Participants
n=5 Participants
30 Participants
n=7 Participants
30 Participants
n=5 Participants
30 Participants
n=4 Participants
120 Participants
n=21 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
16 Participants
n=7 Participants
19 Participants
n=5 Participants
16 Participants
n=4 Participants
65 Participants
n=21 Participants
Sex: Female, Male
Male
16 Participants
n=5 Participants
14 Participants
n=7 Participants
11 Participants
n=5 Participants
14 Participants
n=4 Participants
55 Participants
n=21 Participants
Region of Enrollment
Hungary
30 participants
n=5 Participants
30 participants
n=7 Participants
30 participants
n=5 Participants
30 participants
n=4 Participants
120 participants
n=21 Participants

PRIMARY outcome

Timeframe: at induction one dose and during anaesthesia mg/1 hour

drugs of sevoflurane or total intravenous anaesthesia without or with BIS and TOF monitoring : fentanyl, sevoflurane, propofol 1%, atracurium in milligrams

Outcome measures

Outcome measures
Measure
Group A
n=30 Participants
Fentanyl consumption was studied during sevoflurane anaesthesia. It was registered in milligram.
Group B
n=30 Participants
Fentanyl consumption was studied during sevoflurane anaesthesia with BIS and TOF monitoring. It was registered in milligram. .
Group C
n=30 Participants
Fentanyl consumption was studied during total intravenous anaesthesia. It was registered in milligram.
Group D
n=30 Participants
Fentanyl consumption was studied during total intravenous anaesthesia with BIS and TOF monitoring. It was registered in milligram.
Drug Consumption
fentanyl at induction
0.0983 mg
Standard Deviation 0.0091
0.1033 mg
Standard Deviation 0.0183
0.0991 mg
Standard Deviation 0.0046
0.0992 mg
Standard Deviation 0.0103
Drug Consumption
propofol at induction
196.3 mg
Standard Deviation 46.9
166.4 mg
Standard Deviation 35.2
194.3 mg
Standard Deviation 18.9
147.3 mg
Standard Deviation 30.2
Drug Consumption
atracurium at induction
38.3 mg
Standard Deviation 4.2
37.3 mg
Standard Deviation 6.7
36.0 mg
Standard Deviation 5.7
37.7 mg
Standard Deviation 7.0
Drug Consumption
fentanyl during anaesthesia
0.0546 mg
Standard Deviation 0.0269
0.0598 mg
Standard Deviation 0.0389
0.0898 mg
Standard Deviation 0,0428
0.0947 mg
Standard Deviation 0.0340
Drug Consumption
sevoflurane during anesthesia
11400 mg
Standard Deviation 2800
14800 mg
Standard Deviation 12400
0 mg
Standard Deviation 0
0 mg
Standard Deviation 0
Drug Consumption
propofol during anesthesia
0 mg
Standard Deviation 0
0 mg
Standard Deviation 0
1185.5 mg
Standard Deviation 320.9
1082.1 mg
Standard Deviation 297.9
Drug Consumption
atracurium during anaesthesia
8.3 mg
Standard Deviation 3.7
7.4 mg
Standard Deviation 4.7
8.5 mg
Standard Deviation 4.7
8.9 mg
Standard Deviation 6.1

SECONDARY outcome

Timeframe: 1 hour

total cost of drugs (midazolam, propofol 1%, sevoflurane, atracurium, diclofenac, nalbuphin and antidotes) and disposable cost in euros

Outcome measures

Outcome measures
Measure
Group A
n=30 total cost of anaesthesia
Fentanyl consumption was studied during sevoflurane anaesthesia. It was registered in milligram.
Group B
n=30 total cost of anaesthesia
Fentanyl consumption was studied during sevoflurane anaesthesia with BIS and TOF monitoring. It was registered in milligram. .
Group C
n=30 total cost of anaesthesia
Fentanyl consumption was studied during total intravenous anaesthesia. It was registered in milligram.
Group D
n=30 total cost of anaesthesia
Fentanyl consumption was studied during total intravenous anaesthesia with BIS and TOF monitoring. It was registered in milligram.
Costs of Anaesthesia
total drug cost
8.84 euros
Standard Deviation 4.11
7.86 euros
Standard Deviation 3.54
8.33 euros
Standard Deviation 3.02
7.52 euros
Standard Deviation 2.49
Costs of Anaesthesia
total disposable cost
6.49 euros
Standard Deviation 0.11
23.25 euros
Standard Deviation 0.12
8.09 euros
Standard Deviation 0.07
24.76 euros
Standard Deviation 0.19
Costs of Anaesthesia
total cost of anaesthesia
12.15 euros
Standard Deviation 5.32
19.95 euros
Standard Deviation 8.53
13.23 euros
Standard Deviation 4.23
22.11 euros
Standard Deviation 8.08

Adverse Events

Group A

Serious events: 0 serious events
Other events: 14 other events
Deaths: 0 deaths

Group B

Serious events: 0 serious events
Other events: 15 other events
Deaths: 0 deaths

Group C

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Group D

Serious events: 0 serious events
Other events: 8 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group A
n=30 participants at risk
Anaesthesia was maintained with sevoflurane (1-2% end-tidal concentration, MAC 1.0-1.5) in 50% air and 50% oxygen mixture. Fentanyl consumption was studied during anaesthesia. It was registered in milligram.
Group B
n=30 participants at risk
Anaesthesia was maintained with sevoflurane (1-2% end-tidal concentration, MAC 1.0-1.5) in 50% air and 50% oxygen mixture. Fentanyl consumption was studied during anaesthesia. It was registered in milligram. .
Group C
n=30 participants at risk
During anaesthesia TIVA was applied with a protocol (6 to 8 mg/kg/h propofol). Fentanyl consumption was studied during anaesthesia. It was registered in milligram.
Group D
n=30 participants at risk
During anaesthesia TIVA was applied with a protocol (6 to 8 mg/kg/h propofol). Fentanyl consumption was studied during anaesthesia. It was registered in milligram.
Gastrointestinal disorders
vomiting
3.3%
1/30 • 2 years
6.7%
2/30 • 2 years
3.3%
1/30 • 2 years
3.3%
1/30 • 2 years
Cardiac disorders
other minor complications of anaesthesia
43.3%
13/30 • 2 years
43.3%
13/30 • 2 years
10.0%
3/30 • 2 years
23.3%
7/30 • 2 years

Additional Information

Dr. Timea Bocskai

Department of Anaesthesiology and Intensive Therapy, University of Pecs

Phone: 36 72 507374

Results disclosure agreements

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