Peer-reviewed veterinary case report
End-tidal CO2 levels predict CPR success in dogs and cats
By Hogen, Talli et al.·Published in Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)·2018·Advanced Critical Care·View original on PubMed →
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Original publication title: Evaluation of end-tidal carbon dioxide as a predictor of return of spontaneous circulation in dogs and cats undergoing cardiopulmonary resuscitation.
- Species:
- dog
Plain-English summary
A group of 35 dogs and cats in cardiac arrest received CPR, and researchers measured their end-tidal carbon dioxide (PetCO) levels to see if it could predict whether they would regain spontaneous circulation (ROSC). Out of these pets, 12 achieved ROSC, with 4 sustaining it long enough for one dog to be discharged alive. The pets that successfully regained circulation had significantly higher PetCO levels compared to those that did not. This study suggests that monitoring PetCO during CPR can help veterinarians assess the chances of recovery in pets experiencing cardiac arrest.
People also search for: dog CPR success rate · cat cardiac arrest treatment · end-tidal carbon dioxide in pets · pet CPR monitoring · how to help a dog in cardiac arrest
Abstract
OBJECTIVE: To determine whether the partial pressure of end-tidal carbon dioxide (PetCO) could predict return of spontaneous circulation (ROSC) in patients with cardiopulmonary arrest (CPA) undergoing CPR. DESIGN: Prospective observational study. SETTING: Two private specialty referral hospitals. ANIMALS: Thirty-five client-owned dogs and cats in CPA in which CPR was performed and pertinent data recorded on a purpose-made form. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: PetCOwas recorded at 1-minute intervals during CPR. Hospital, animal, arrest, and outcome variables were also reported in the Utstein style where possible. Twelve animals (7 dogs and 5 cats) achieved ROSC; 4 of these (2 dogs and 2 cats) had sustained ROSC, of which 1 dog was discharged alive. Patients that achieved ROSC had significantly higher initial PetCO(P = 0.0083), peak PetCO(P < 0.0001), average PetCO(P < 0.0001), and ΔPetCO(difference between last and first recorded PetCO; P = 0.0004) than patients not resuscitated. The PetCOaccurately discriminated between ROSC and failure to achieve ROSC at minutes 3, 4, 5, 6, 7, and 8 of CPR with area under the receiver operating characteristic curve of 0.926, 0.967, 0.938, 0.933, 0.956, and 1.00, respectively. The optimal cutoff PetCOwas 18 mm Hg (2.4 kPa), with a sensitivity of ≥80% and a specificity of ≥95% at minutes 3, 4, 5, 6, and 8, correctly classifying 91-100% of cases. CONCLUSIONS: The results of this small study support previous recommendations to monitor PetCOduring CPR and suggest that PetCOduring CPR may be useful for determining the probability of ROSC. Absolute values and trends of PetCOmay assist clinicians and owners in making decisions for pets with CPA.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30117723/