Carbon dioxide absorber as a cause of high airway pressures

Bagdasarian, Levick A.; Shah, Nitin; Sharif, Mehrdad K.

doi:10.1016/j.jclinane.2007.06.018

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…[43] Problems in the CO 2 canister resulted in rebreathing and hypercarbia,[4445] significant leak and difficulty in ventilation,[4647484950] and obstruction to ventilation. [51] Although use of circle system, CO 2 absorbents and low-flow anaesthesia are beneficial in economy of gases, they have inadvertently contributed to ventilator problem due to water condensation and production of dangerous substances such as compound A. [5253]…”

Section: Hazards Of Anaesthesia Machinesmentioning

confidence: 99%

Anaesthesia machine: Checklist, hazards, scavenging

Umesh

Prabhu

2013

Indian J Anaesth

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From a simple pneumatic device of the early 20th century, the anaesthesia machine has evolved to incorporate various mechanical, electrical and electronic components to be more appropriately called anaesthesia workstation. Modern machines have overcome many drawbacks associated with the older machines. However, addition of several mechanical, electronic and electric components has contributed to recurrence of some of the older problems such as leak or obstruction attributable to newer gadgets and development of newer problems. No single checklist can satisfactorily test the integrity and safety of all existing anaesthesia machines due to their complex nature as well as variations in design among manufacturers. Human factors have contributed to greater complications than machine faults. Therefore, better understanding of the basics of anaesthesia machine and checking each component of the machine for proper functioning prior to use is essential to minimise these hazards. Clear documentation of regular and appropriate servicing of the anaesthesia machine, its components and their satisfactory functioning following servicing and repair is also equally important. Trace anaesthetic gases polluting the theatre atmosphere can have several adverse effects on the health of theatre personnel. Therefore, safe disposal of these gases away from the workplace with efficiently functioning scavenging system is necessary. Other ways of minimising atmospheric pollution such as gas delivery equipment with negligible leaks, low flow anaesthesia, minimal leak around the airway equipment (facemask, tracheal tube, laryngeal mask airway, etc.) more than 15 air changes/hour and total intravenous anaesthesia should also be considered.

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Section: Hazards Of Anaesthesia Machinesmentioning

confidence: 99%

Anaesthesia machine: Checklist, hazards, scavenging

Umesh

Prabhu

2013

Indian J Anaesth

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Aumento de presión en la vía aérea durante la ventilación mecánica: más allá del broncoespasmo

Rama-Maceiras

Unzueta

Soro

et al. 2011

Revista Española de Anestesiología y Reanimación

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Water Accumulation in Amsorb Canister May Cause Inspiratory Flow Obstruction: A Case Report

Gross¹,

Scannell²

2021

A&A Practice

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A patient received closed-circuit anesthesia from a General Electric Avance S/5 (GE Healthcare, Madison, WI) anesthesia machine during a robotic abdominal procedure. With return of spontaneous ventilation at the end of the procedure, the negative airway pressure alarm began to sound, and a negative airway pressure of 10–15 cm H2O was observed with each breath. Replacing the CO2 absorber resolved the problem. There was considerable condensation on the walls of the Amsorb canister, and on disassembly, the sponge at the bottom was wet. Experimentation with an empty canister revealed that as little as 30 mL of water in the sponge can reproduce our observations.

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Carbon dioxide absorber as a cause of high airway pressures

Cited by 3 publications

References 7 publications

Anaesthesia machine: Checklist, hazards, scavenging

Anaesthesia machine: Checklist, hazards, scavenging

Aumento de presión en la vía aérea durante la ventilación mecánica: más allá del broncoespasmo

Water Accumulation in Amsorb Canister May Cause Inspiratory Flow Obstruction: A Case Report

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