Presumptive partial atrial standstill secondary to atrial cardiomyopathy in a Greyhound.
Persistent atrial standstill is a rare arrhythmia in both human and veterinary patients. In recent decades, cases of partial atrial standstill have been recognized in humans. We describe a case of presumptive partial atrial standstill in a Greyhound, in which there was disparate left and right atrial electromechanical function and rapid progression to congestive heart failure over the span of fourteen weeks. An atrial cardiomyopathy characterized by severe, diffuse, fibrofatty replacement of the atrial myocardium was identified histologically.
Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USA. Electronic address: swesselowski@cvm.tamu.edu.
S
S
Wesselowski
Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USA.
J
J
Abbott
Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USA.
M
M
Borgarelli
Department of Veterinary Science, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Turin, Italy.
M
M
Tursi
D000818:Animals; D001145:Arrhythmias, Cardiac; D009202:Cardiomyopathies / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D004283:Dog Diseases / Q000175:diagnosis* / Q000473:pathology; D004285:Dogs; D004562:Electrocardiography; D017809:Fatal Outcome; D005260:Female; D030342:Genetic Diseases, Inborn / Q000175:diagnosis / Q000662:veterinary*; D006325:Heart Atria / Q000002:abnormalities*; D006327:Heart Block / Q000175:diagnosis / Q000662:veterinary*
Dog; Fibrofatty; Unilateral