EXPRESS: Successful management of anuric acute kidney injury associated with aortic thromboembolism with peritoneal dialysis in a cat

Case Summary A 4-year-8-month-old neutered male American Shorthair cat presented with acute hindlimb paralysis and was diagnosed with aortic thromboembolism (ATE) secondary to hypertrophic cardiomyopathy (HCM). Despite initial treatment, the cat developed anuric acute kidney injury (AKI), possibly due to ischemia-reperfusion injury. As referral for hemodialysis was declined, peritoneal dialysis (PD) was initiated using a closed round drainage catheter and manually performed exchanges. “Although serum creatinine levels continued to rise during PD, the cat was kept clinically stable on PD, and urination resumed on Day 8 of PD (Day 15 of hospitalization). The cat was discharged on Day 21 with marked improvement in renal parameters and remained stable without recurrence at follow-up.