Low-flow anaesthesia

Baum, J.

doi:10.1097/00003643-199609000-00002

Cited by 39 publications

(42 citation statements)

References 1 publication

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“…[3] The laryngeal mask airway (LMA) has proved to be an effective and safe airway device. However, there were controversies over its ability deliver positive pressure ventilation, particularly under reduced gas flow rates and for prolonged procedures.…”

Section: Introductionmentioning

confidence: 99%

Low flow anesthesia: Efficacy and outcome of laryngeal mask airway versus pressure-optimized cuffed-endotracheal tube

et al. 2010

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BackgroundLow flow anesthesia can lead to reduction of anesthetic gas and vapor consumption. Laryngeal mask airway (LMA) has proved to be an effective and safe airway device. The aim of this study is to assess the feasibility of laryngeal mask airway during controlled ventilation using low fresh gas flow (1.0 L/min) as compared to endotracheal tube (ETT).Patients and MethodsFifty nine non-smoking adult patients; ASA I or II, being scheduled for elective surgical procedures, with an expected duration of anesthesia 60 minutes or more, were randomly allocated into two groups - Group I (29 patients) had been ventilated using LMA size 4 for females and 5 for males respectively; and Group II (30 patients) were intubated using ETT. After 10 minutes of high fresh gas flow, the flow was reduced to 1 L/min. Patients were monitored for airway leakage, end-tidal CO2(ETCO2), inspiratory and expiratory isoflurane and nitrous oxide fraction concentrations, and postoperative airway-related complications.ResultsTwo patients in the LMA-group developed initial airway leakage (6.9%) versus no patient in ETT-group. Cough and sore throat were significantly higher in ETT patients. There were no evidences of differences between both groups regarding ETCO2, uptake of gases, nor difficulty in swallowing.Conclusion:The laryngeal mask airway proved to be effective and safe in establishing an airtight seal during controlled ventilation under low fresh gas flow of 1 L/min, inducing less coughing and sore throat during the immediate postoperative period than did the ETT, with continuous measurement and readjustment of the tube cuff pressure.

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Section: Introductionmentioning

confidence: 99%

Low flow anesthesia: Efficacy and outcome of laryngeal mask airway versus pressure-optimized cuffed-endotracheal tube

et al. 2010

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“…Modern anaesthesia machines usually meet all technical requirements for the safe use of these techniques if inhaled and exhaled anaesthetic gas concentrations are monitored. Minimal‐ and low‐flow techniques are particularly suitable for the use of new and more expensive volatile anaesthetics, with low tissue solubility and low anaesthetic potency [3,4]. An airtight seal between the airway device and the airway of the patient is essential to establish a leak‐free semi‐closed circuit system, particularly during controlled ventilation of the lungs.…”

Section: Introductionmentioning

confidence: 99%

Minimal-flow anaesthesia with controlled ventilation: comparison between laryngeal mask airway and endotracheal tube

Hönemann¹,

Hahnenkamp²,

Möllhoff³

et al. 2001

Eur J Anaesthesiol

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The use of the laryngeal mask airway was more likely to be associated with a gas leak than use of an endotracheal tube; however, if modern anaesthesia machines and monitors are used, in 96.7% of the patients managed with a laryngeal mask a reduction in the fresh gas flow to 0.5 L min(-1) was possible. The incidence of coughing and postoperative complaints (sore throat, swallowing problems) was higher after use of an endotracheal tube.

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“…It should also be noted that the high fresh gas flow requirement of the T‐piece is not a disadvantage during induction, as high fresh gas flows will be required at this stage whatever breathing system is used, to denitrogenize the system and to ensure adequate uptake of the anesthetic agents by the patient (4). Once an adequate and stable end‐tidal anesthetic concentration has been attained, usually within 5–10 min in children anesthetized with sevoflurane (5), lack of economy becomes a major disadvantage of the T‐piece and users should switch to a circle system with a maximum flow rate of 1 l min ‐1 .…”

mentioning

confidence: 99%

Role of the Jackson Rees T‐piece in pediatric anesthesia

Meakin

2007

Pediatric Anesthesia

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Low-flow anaesthesia

Cited by 39 publications

References 1 publication

Low flow anesthesia: Efficacy and outcome of laryngeal mask airway versus pressure-optimized cuffed-endotracheal tube

Low flow anesthesia: Efficacy and outcome of laryngeal mask airway versus pressure-optimized cuffed-endotracheal tube

Minimal-flow anaesthesia with controlled ventilation: comparison between laryngeal mask airway and endotracheal tube

Role of the Jackson Rees T‐piece in pediatric anesthesia

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