Analysis of predisposition factors for limb amputation in dogs with survival analysis in those diagnosed with appendicular cancer
Aims:This study aimed to contribute to the knowledge of epidemiological factors contributing to limb amputation in dogs. A survival analysis for limb amputees from cancerous causes was also performed.Methods:Data were collected in 2010 from 152 owners of amputee dogs. And a statistical analysis was performed to differentiate effects of gender, castration, age, breed, treatment and behaviour after surgery. A cox regression was also performed to analyse these same effects in survivability.Results:A larger proportion of amputee bitches than dogs are associated with cancer while a larger proportion of amputee dogs than bitches are associated with trauma; castrated/spayed dogs were diagnosed older than intact dogs; cancerous causes of amputation were diagnosed later in dogs' lives than traumatic causes; dogs showing an animal behaviour in the first week after amputation were diagnosed with cancer younger than dogs showing a vegetal/rock behaviour. Treatment by chemotherapy has a better survivability than holistic therapy, and patient receiving chemotherapy exhibit animal rather than vegetal/rock behaviour.Conclusion:The survival analysis gives clear indication of the benefits of chemotherapy over holistic treatments. Animal behaviour post surgery is also related to survivability.
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