NCT02774031

Comparison of Gas Consumption From Two Different Anesthesia Machines

Comparing Gas Consumption With Conventional Low Flow Ventilation and Gas Control Systems From Two Different Anesthesia Machines: Flow-i and Aisys

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 147 (actual)
• Sponsor: St. Olavs Hospital · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Low flow anesthesia (LFA) is used less than desirable, partly because one has considered that there might be danger of underdosing of anesthesia gas and thus risk of awareness under anesthesia.LFA has several advantages such as reducing loss of moisture and heat in the inhaled air under anesthesia and to reduce the consumption of anesthetic gas. A few anesthesia machines include an automatic gas control system: the Aisys machine, by GE Healthcare (Madison, WI, USA), and the Flow-i machine, by Maquet (Sweden). Since these machines were introduced, only a few studies have reported their functionality and effect on gas consumption. 20 to 55% reduction of gas consumption was found. The potential reduction may have been underestimated because in the majority of cases a FGF higher than 1 l/min was still used. In this study the consumption of anesthetic gas (desflurane) delivered by two different anesthesia machines (Aisys and Flow-i) will be compared, with and without gas control delivery systems. Gas consumption and the time needed to reach the target level of anesthetic gas concentration will be assessed. Data needed will be collected directly from the anesthesia machine, PICIS ( Electronic anesthesia record) and EPJ (Electronic patient journal). The results of this study are of interest for intraoperative ventilation and of economic and ecological interest .

Conditions

• Male Urogenital Diseases
• Female Urogenital Diseases

Interventions

Type	Name	Description
DEVICE	Aisys with Et control
DEVICE	Aisys conventional
DEVICE	Flow-i with ACG
DEVICE	Flow-i conventional

Timeline

• Start date: 2016-05-01
• Primary completion: 2017-10-20
• Completion: 2017-10-20
• First posted: 2016-05-16
• Last updated: 2017-11-13

Locations

1 site across 1 country: Norway