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Feline Peritoneal Effusions-A Poor Prognosis?
Laura Letwin1, Sivert Nerhagen2, Camilla Hindar2
1AURA Veterinary, 70 Priestley Road, Guildford GU27AJ, UK.
Animals : an Open Access Journal From MDPI
|November 27, 2025
Summary
Feline ascites prognosis has improved, with 55% of cats surviving discharge. Uroperitoneum offered the best survival rate, while hemoperitoneum had the lowest, highlighting the importance of effusion cause in feline ascites outcomes.
Area of Science:
- Veterinary Medicine
- Internal Medicine
- Diagnostic Imaging
Background:
- Feline ascites historically carries a poor prognosis, with limited recent data on survival across all etiologies.
- Previous studies on feline ascites prognosis involved small patient cohorts, necessitating updated research.
Purpose of the Study:
- To evaluate survival times in a large feline population with ascites.
- To determine the impact of effusion cause, patient signalment, clinicopathological, and imaging findings on survival.
Main Methods:
- Retrospective analysis of medical records from a referral hospital.
- Inclusion of 498 cats with ascites, analyzing survival to discharge and post-discharge median survival time.
- Statistical assessment of factors influencing survival, including effusion etiology and subjective effusion volume on imaging.
Main Results:
- 55% of cats survived to discharge, with a median post-discharge survival of 30.5 days.
- Effusion cause significantly impacted survival (p = 0.002), with uroperitoneum (77% survival) faring better than hemoperitoneum (40% survival).
- Subjective effusion volume assessment on imaging was also significantly associated with survival (p = 0.012).
Conclusions:
- Feline ascites prognosis is influenced by effusion etiology and volume, with simpler diagnostic assessments providing valuable prognostic information.
- Uroperitoneum and hemoperitoneum represent distinct prognostic categories within feline ascites.
- This study provides updated prognostic data for a large feline population with ascites.
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