Trial Outcomes & Findings for Rebreathing of Carbon Dioxide With a Device Used for Giving Inhalational Anaesthesia (NCT NCT01339013)
NCT ID: NCT01339013
Last Updated: 2014-09-25
Results Overview
A conventional heat and moisture exchanger used in a respiratory circuit during anasthesia was exchanged by an AnaConDa. The AnaConDa causes re-breathing of carbon dioxide which clinically is equivalent to an increased airway dead space. The total airway dead space effect of the AnaConDa, i.e. volume of the device plus rebreathing from the charcoal filter was measured using the Single Breath Test for carbon dioxide, as was airway deadspace of the conventional Heat and Moisture Exchanger. Airway dead space differences between devices was calculated by subtraction of volumes thus achieved. Difference= Airway dead space AnaConDa - Airway dead space conventional Heat and Moisture Exchanger.
COMPLETED
NA
6 participants
1 hour
2014-09-25
Participant Flow
September 2011 to January 2013, Medical Clinic
All recruited patients participated uneventfully.
Participant milestones
| Measure |
AnaConDa Replaces the Heat and Moisture Exchanger
The conventional Heat and Moisture Exchanger is replaced by the AnaConDa which in turn is replaced by the conventional Heat and Moisture Exchanger.
|
|---|---|
|
Overall Study
STARTED
|
6
|
|
Overall Study
COMPLETED
|
6
|
|
Overall Study
NOT COMPLETED
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Rebreathing of Carbon Dioxide With a Device Used for Giving Inhalational Anaesthesia
Baseline characteristics by cohort
| Measure |
All Study Participants
n=6 Participants
Heat and Moisture Exchanger, then AnaConDa, finally Heat and Moisture Exchanger
|
|---|---|
|
Age, Continuous
|
63 years
n=99 Participants
|
|
Age, Categorical
<=18 years
|
0 Participants
n=99 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
4 Participants
n=99 Participants
|
|
Age, Categorical
>=65 years
|
2 Participants
n=99 Participants
|
|
Sex: Female, Male
Female
|
1 Participants
n=99 Participants
|
|
Sex: Female, Male
Male
|
5 Participants
n=99 Participants
|
|
Region of Enrollment
Sweden
|
6 participants
n=99 Participants
|
PRIMARY outcome
Timeframe: 1 hourA conventional heat and moisture exchanger used in a respiratory circuit during anasthesia was exchanged by an AnaConDa. The AnaConDa causes re-breathing of carbon dioxide which clinically is equivalent to an increased airway dead space. The total airway dead space effect of the AnaConDa, i.e. volume of the device plus rebreathing from the charcoal filter was measured using the Single Breath Test for carbon dioxide, as was airway deadspace of the conventional Heat and Moisture Exchanger. Airway dead space differences between devices was calculated by subtraction of volumes thus achieved. Difference= Airway dead space AnaConDa - Airway dead space conventional Heat and Moisture Exchanger.
Outcome measures
| Measure |
AnaConDa
n=6 Participants
Anesthetic Conserving Device (AnaConDa) has a charcoal filter.
|
|---|---|
|
Airway Dead Space With Devices for Heat and Moisture Exchange of Respiratory Gas.
|
136 mL
Interval 120.0 to 167.0
|
Adverse Events
AnaConDa
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr Louise Walther Sturesson
Region Skane, Lund University Hospital, Lund, Sweden
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place