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Low-flow Anesthesia - Anesthesia machines

Low-flow Anesthesia

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Perioperative lung protective ventilation during general anesthesia can reduce the incidence of postoperative pulmonary complications (PPC). PPC are common complications after general anesthesia.

Why is low-flow anesthesia better for pulmonary function than the high-flow technique?

The upper respiratory tract plays an important role in acclimatizing the inhaled gas as the respiratory epithelium of the lower respiratory tract changes towards the terminal bronchioles, successively decreasing the capability to humidify and warm the inspired gas. During anesthesia, however, the upper respiratory tract is bypassed by endotracheal intubation or a laryngeal mask, leaving the lower respiratory tract potentially overcharged with the task of adequately acclimatizing the cold and dry gas applied during high flow anesthesia. Mechanical ventilation with cold and dry gas can thus lead to damage of the lung parenchyma.

Cold and dry respiratory gases reduce ciliary activity in the respiratory epithelium. The reduction of mucociliary clearance can lead to atelectasis and infections, conditions referred to as postoperative pulmonary complications. Warming and humidifying the respiratory gases using low-flow anesthesia can reduce these negative effects on the respiratory epithelium.


Whitepaper: Benefits of low-flow anesthesia
Whitepaper benefits of low flow anesthesia cover page

How can your patients benefit from a technique that potentially minimizes the risk for postoperative pulmonary complication? Learn more about the advantages of low-flow anesthesia in our whitepaper!

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Technology Insights: Low-flow anesthesia
Low flow anesthesia technique - Technology Insights

This paper will provide you with insights into the technical prerequisites for the operation of low-flow anesthesia and supporting Dräger technology.

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Infographic: Low-flow anesthesia – An effective solution for a common problem
Infographic low flow anesthesia

Postoperative pulmonary complications (PPCs) are common and have a profound negative impact on outcomes. PPCs are associated with a 30-day mortality of 18 % compared with 2.5 % for those without PPCs (Khuri et al. 2005). Low-flow anesthesia can reduce the risk for PPCs.

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Low-flow Anesthesia Methods and Cost Reduction

Clinical techniques for use with rebreathing systems cover page

Clinical techniques for use with rebreathing systems

Wide-ranging clinical experience shows that low-flow anesthesia is a simple-to-perform technique and can be easily used in daily clinical routine. ”The safety and technical capability of today’s anesthesia machines make low-flow, minimal-flow and metabolic-flow anesthesia the procedures of choice., concludes Bert Mierke (MD/PhD) and Christian Hoenemann (MD/PhD), passionate low-flow advocates and authors of the booklet on low-, minimal- and metabolic flow anesthesia.


How can you help reduce costs in the OR? – 2 doctors discussingPlay video

How can you help reduce costs in the OR?

The use of low-flow anesthesia reduces consumption of volatile anesthetic agents as well as nitrous oxide and oxygen. Apart from potentially significant cost savings, the negative ecological effects of volatile anesthetic agents can be reduced. The use of a low fresh gas flow rate maximizes rebreathing of exhaled anesthetic gas and is less costly than a high flow rate. Data from various studies confirm a cost reduction of between 55 and 75% if the fresh gas flow is reduced from 4 to 1 L/min. Learn how hospitals reduced their agent consumption by using low-flow anesthesia in this reference case.

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Draeger India Private Limited

10th Floor, Commerz II, International Business Park,
Oberoi Garden City,
Off Western Express Highway, Goregaon (East),
Mumbai - 400 063, India

022 6133 5600


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