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. 2024 Nov;26(11):1098612X241288175.
doi: 10.1177/1098612X241288175.

Risk factors affecting all-cause mortality in cats hospitalized by a referral soft tissue service

Michaela M Baker  1 , Chad W Schmiedt  1 , Meghan Lewis  1 , Mandy L Wallace  1 , Brian Sutherland  1 , Janet A Grimes  1
Affiliations

Risk factors affecting all-cause mortality in cats hospitalized by a referral soft tissue service

Michaela M Baker et al. J Feline Med Surg. 2024 Nov.

Abstract

Objectives: The objective of this study was to describe the all-cause mortality rate in cats hospitalized by the soft tissue surgery service of an academic referral hospital over a 5-year period and to identify specific risk factors for mortality. The hypotheses were that the all-cause mortality rate during hospitalization would be low, and cats undergoing emergency surgery and those with an American Society of Anesthesiologists (ASA) status of 3 or more would be at increased risk for mortality.

Methods: The case log of cats hospitalized by the soft tissue surgery service at the University of Georgia was searched retrospectively to identify all cats hospitalized in the years 2015-2020. Data collected about each cat included age, sex and neuter status, weight, body condition score (1-9), pre-existing heart disease, chronic kidney disease, concurrent infection or cancer, emergency status, time of surgery (daytime vs after hours, which was defined as after 4 pm), if the surgery was performed on a weekday or weekend, and general type of surgery. Univariable logistic regressions were implemented to test and estimate odds ratios for the effects of risk factors on in-hospital mortality. A multivariable logistic regression was developed that initially included all risk factors with P <0.05 on univariable analysis. Log-likelihood ratio test P values and profile-likelihood confidence intervals were reported.

Results: The all-cause mortality rate was 6.1%. Analysis was limited because of low mortality, but multivariable analysis identified increasing ASA status and emergency surgery as significant risk factors for increased mortality while hospitalized.

Conclusions and relevance: The findings of this study confirmed that increasing ASA status and emergency procedures are significant risk factors for mortality in cats. Clinicians should be aware of these risk factors and consider how to best monitor and manage these feline patients.

Keywords: ASA status; All-cause mortality; emergent surgery; risk factors; surgery.

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Conflict of interest statement

Conflict of interestThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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References

    1. Kawashima Y, Seo N, Morita K, et al.. Annual study of perioperative mortality and morbidity for the year of 1999 in Japan: the outlines–report of the Japan Society of Anesthesiologists Committee on Operating Room Safety. Masui 2001; 50: 1260–1274. - PubMed
    1. Heeney A, Hand F, Bates J, et al.. Surgical mortality – an analysis of all deaths within a general surgical department. Surgeon 2014; 12: 121–128. - PubMed
    1. Pedersen T, Eliasen K, Henriksen E. A prospective study of mortality associated with anaesthesia and surgery: risk indicators of mortality in hospital. Acta Anaesthesiol Scand 1990; 34: 176–182. - PubMed
    1. Fowkes FG, Lunn JN, Farrow SC, et al.. Epidemiology in anaesthesia. III: mortality risk in patients with coexisting physical disease. Br J Anaesth 1982; 54: 819–825. - PubMed
    1. Mullen MG, Michaels AD, Mehaffey JH, et al.. Risk associated with complications and mortality after urgent surgery vs elective and emergency surgery: implications for defining “quality” and reporting outcomes for urgent surgery. JAMA Surg 2017; 152: 768–774. - PMC - PubMed

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