Evaluation of platelet function in cats with and without kidney disease: a pilot study

Area of Science:

• Veterinary Medicine
• Nephrology
• Hematology

Background:

• Chronic kidney disease (CKD) is common in cats and can lead to complex health issues.
• Platelet function and gastrointestinal bleeding are potential complications in CKD patients.

Purpose of the Study:

• To investigate platelet function in clinically stable CKD cats and those in a uremic crisis.
• To determine the prevalence of fecal occult blood in cats with CKD.

Main Methods:

• Platelet function was assessed using impedance aggregometry (adenosine diphosphate and arachidonic acid challenges).
• Hematocrit, platelet count, and mean platelet volume were analyzed.
• Fecal occult blood tests were performed and compared across different CKD stages and normal cats.

Main Results:

• Uremic crisis cats exhibited significantly higher platelet reactivity (AUC_ADP, AUC_ASPI) compared to normal cats.
• Normal cats had higher hematocrit; no significant differences were found in platelet count or MPV.
• Positive fecal occult blood tests were significantly more common in uremic crisis cats (50%) and advanced CKD cats (33%) than in early CKD or normal cats.

Conclusions:

• Platelet hyper-reactivity may be present in cats experiencing a uremic crisis.
• The cause of positive fecal occult blood in CKD cats remains unclear and warrants further investigation, as it wasn't directly linked to the measured platelet function changes.