Conventional versus high-flow oxygen therapy in dogs with lower airway injury.

IF 1.1 4区 农林科学 Q2 Veterinary Canadian journal of veterinary research = Revue canadienne de recherche veterinaire Pub Date : 2021-10-01
Meera Ramesh, Elizabeth Thomovsky, Paula Johnson
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Abstract

Dogs with lower airway pathology that present in respiratory distress often receive oxygen therapy as the first line of treatment regardless of the underlying cause. Conventional "low-flow" systems deliver oxygen with a maximum flow rate of 15 L/minute. Traditionally, when an animal's respiratory status does not improve with conventional oxygen therapy and treatments for underlying disease, options might be limited to either intubation and mechanical ventilation or humane euthanasia. High-flow oxygen therapy (HFOT) has been gaining popularity in veterinary medicine as an alternative route of oxygen supplementation for animals that require support beyond conventional therapy. High-flow oxygen therapy can supply a mixture of air and oxygen via a heated and humidified circuit. It is user friendly and can be used in an environment in which mechanical ventilation is unavailable. This review article is written for emergency doctors and general practitioners who lack access to mechanical ventilation. This article briefly reviews pertinent respiratory physiology, traditional oxygen supplementation techniques, the physiology of HFOT, and the limited evidence available in veterinary medicine regarding the use of HFOT, its applications, and limitations. Guidelines for the use of HFOT are suggested and HFOT is compared to conventional therapy.

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下气道损伤犬的常规氧疗与高流量氧疗比较。
出现呼吸窘迫的下气道病理犬通常接受氧气治疗作为第一线治疗,无论其根本原因如何。传统的“低流量”系统输送氧气的最大流量为15升/分钟。传统上,当动物的呼吸状态不能通过传统的氧气治疗和潜在疾病的治疗得到改善时,选择可能仅限于插管和机械通气或人道安乐死。高流量氧疗(HFOT)在兽医学中越来越受欢迎,作为需要常规治疗之外支持的动物补充氧气的替代途径。高流量氧气疗法可以通过加热和加湿的电路提供空气和氧气的混合物。它是用户友好的,可以在没有机械通风的环境中使用。这篇综述文章是为缺乏机械通气的急诊医生和全科医生写的。本文简要综述了相关的呼吸生理学,传统的补氧技术,HFOT的生理学,以及兽医学中关于HFOT使用的有限证据,其应用和局限性。建议了HFOT的使用指南,并将HFOT与常规疗法进行了比较。
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来源期刊
CiteScore
1.80
自引率
0.00%
发文量
58
审稿时长
>24 weeks
期刊介绍: The Canadian Journal of Veterinary Research, published by the Canadian Veterinary Medical Association, is Canada''s only veterinary research publication. This quarterly peer-reviewed online-only journal has earned a wide international readership through the publishing of high quality scientific papers in the field of veterinary medicine. The Journal publishes the results of original research in veterinary and comparative medicine.
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