ArticleJournal of veterinary emergency and critical care (San Antonio, Tex. : 2001)
Retrospective Study on Liberation in Dogs Undergoing Mechanical Ventilation for Longer Than 24 Hours.
Article in Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo describe liberation in a population of dogs undergoing ≥24 h of mechanical ventilation (MV) and to assess for differences between successful and unsuccessful liberation attempts as well as adherence to criteria for veterinary and human readiness to discontinue MV.
designRetrospective study.
settingUniversity teaching hospital. ANIMALS: Forty-seven client-owned dogs undergoing ≥24 h of MV. MEASUREMENTS AND MAIN
resultsMedical records were retrospectively reviewed; signalment, underlying disease, indications for MV, and survival to discharge were recorded. Data were collected up to 2 h before discontinuation of MV, noting ventilator settings and physiologic and blood gas variables. Twenty-four of 47 (51.1%) cases undergoing MV were successfully liberated; of these, 22 (91.7%) dogs survived to discharge. Dogs were successfully liberated using various modes of ventilation, including assist control (15/24 [62.5%]), synchronized intermittent mandatory ventilation (8/24 [33.3%]), and pressure support ventilation (1/24 [4.2%]). Forty-eight attempts at liberation occurred in 30 dogs. Of these, 24 of 48 (50%) were successful. Only end-tidal carbon dioxide (ETCO
conclusionsMost successfully liberated cases did not fulfill the veterinary criteria for readiness to undergo an SBT. Dogs should not necessarily be precluded from undergoing an SBT or liberation attempt if they are receiving vasopressors but meet the remaining criteria.
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