2024 article

Detection of <i>Anaplasma phagocytophilum</i> in an inflammatory pericardial effusion of a dog

Murdock, B. K., Bach, J. F., Qurollo, B. A., Lashnits, E. W., & Friedrichs, K. R. (2024, May 4). JOURNAL OF VETERINARY INTERNAL MEDICINE.

By: B. Murdock*, J. Bach*, B. Qurollo n, E. Lashnits* & K. Friedrichs*

author keywords: canine; cytologic evaluation; granulocytic anaplasmosis; tick-borne disease
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Source: Web Of Science
Added: May 13, 2024

Abstract An 11‐year‐old female spayed German Wirehaired Pointer with a 1‐week history of lethargy, hyporexia, diarrhea, and coughing presented with pericardial effusion causing cardiac tamponade. An echocardiogram revealed no structural cause for pericardial effusion. The pericardial effusion was an exudate with mixed macrophagic and neutrophilic inflammation. Morulae occasionally were found within neutrophils. The pericardial fluid and blood were qPCR and cPCR positive for Anaplasma phagocytophilum (NC State University, Vector‐borne Disease Diagnostic Laboratory, Raleigh, NC). The dog's blood was negative by ELISA (Vetscan Flex4 Rapid Test, Zoetis, Parsippany, NJ) for A . phagocytophilum antibodies at initial presentation and subsequently positive (SNAP4DxPlus, IDEXX, Westbrook, ME) 7 days later. After pericardiocentesis and administration of doxycycline (5 mg/kg PO q12h for 14 days), a repeat echocardiogram performed 1 month later showed no recurrence of pericardial effusion.