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Anaesthetic mortality in cats: a worldwide analysis and risk assessment


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Title: Anaesthetic mortality in cats: a worldwide analysis and risk assessment
Authors : Redondo García, José Ignacio
Martínez Taboada, Fernando
Viscasillas Monteagudo, Jaime
Doménech Ballester, Luis
Marti Scharfhausen, Reyes
Hernández Magaña, Eva Zoe
Otero, Pablo E.
Keywords: Anestesia veterinariaVeterinary anesthesiaGatosCatsMortalidadMortality
Publisher: John Wiley & Sons
Citation: Redondo, J.I., Martínez-Taboada, F., Viscasillas, J., Doménech, L., Marti-Scharfhausen, R., Hernández-Magaña, E.Z. & Otero, P.E. (2024). Anaesthetic mortality in cats: a worldwide analysis and risk assessment. The Veterinary Record, vol. 195, i. 1, art. e4147 (06 jul.). DOI:
Abstract: Background: Patient safety is essential in small animal anaesthesia. Thisstudy aimed to assess anaesthesia-related deaths in cats worldwide, identifyrisk and protective factors and provide insights for clinical practice.Methods: A prospective multicentre cohort study of 14,962 cats from198 veterinary centres across different countries was conducted. Data onanaesthesia-related deaths, from premedication up to 48 hours postex-tubation, were collected. Logistic regression was used to analyse patientdemographics, American Society of Anesthesiologists (ASA) classification,procedure type and anaesthetic drugs.Results: The anaesthesia-related mortality was 0.63%, with 74.5% of deathsoccurring postoperatively. Cats with cachexia, a higher ASA status or whounderwent abdominal, orthopaedic/neurosurgical or thoracic proceduresexhibited elevated mortality. Mechanical ventilation use was associated withincreased mortality. Mortality odds were reduced by the use of alpha2 -agonistsedatives, pure opioids in premedication and locoregional techniques.Limitations: Limitations include non-randomised sampling, potentialbiases, unquantified response rates, subjective death cause classification andlimited variable analysis.Conclusions: Anaesthetic mortality in cats is significant, predominantlypostoperative. Risk factors include cachexia, higher ASA status, specificprocedures and mechanical ventilation. Protective factors include alpha2 -agonist sedatives, pure opioids and locoregional techniques. These findingscan help improve anaesthesia safety and outcomes. However, further researchis required to improve protocols, enhance data quality and minimise risks.
Rights :
Open Access
ISSN: 0042-4900
2042-7670 (Electrónico)
Supported by: Acuerdo Transformativo – 2024
Issue Date: 6-Jul-2024
Center : Universidad Cardenal Herrera-CEU
Appears in Collections:Dpto. Medicina y Cirugía Animal

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