Descriptive Analysis and Factors Associated With Relapse in Dogs With Presumptive Idiopathic Immune-Mediated...

Area of Science:

• Veterinary Medicine
• Immunology
• Canine Health

Background:

• Immune-mediated polyarthritis (IMPA) is a prevalent joint condition in dogs.
• While generally manageable, IMPA frequently relapses, and factors predicting these relapses are not well understood.

Purpose of the Study:

• To assess the treatment outcomes for dogs with IMPA.
• To identify factors that predict the likelihood of IMPA relapse in dogs.

Main Methods:

• A retrospective study analyzed data from 119 dogs diagnosed with non-associative IMPA across four veterinary centers.
• Medical records, including clinical signs, laboratory results (e.g., CRP), and imaging, were reviewed.
• Statistical models (Cox regression) were used to identify predictors of relapse after remission.

Main Results:

• High remission rates (95.8%) were observed in dogs with IMPA.
• Among dogs with relapse data, 65% experienced relapse within 24 months.
• Thrombocytosis, lymphadenomegaly, and lameness at diagnosis were significantly associated with an increased risk of relapse.

Conclusions:

• Dogs with non-associative IMPA generally achieve remission, but the risk of relapse is considerable.
• Early identification of lameness, lymphadenomegaly, and thrombocytosis can help predict which dogs are at higher risk for IMPA relapse.