title: Long-term management of atrial myopathy in two dogs with single chamber permanent transvenous pacemakers.
abstract: Two young Labrador retriever dogs with bradycardia-induced syncope resulting from atrial myopathy underwent permanent transvenous pacemaker implantation. Both dogs developed heart failure 3-5 years after pacemaker implantation. Both were managed medically for approximately 7 years after pacemaker implantation and, ultimately, were humanely euthanized due to refractory heart failure signs and quality of life concerns. Long-term management of dogs with atrial myopathy and secondary atrial standstill with pacemaker implantation and medical therapy for heart failure is feasible and prognosis may be better than previously reported or speculated.
authors.affiliation: CVCA, Cardiac Care for Pets, 140 Park Street SE, Vienna, VA 22180, USA. Electronic address: kacie.schmitt@cvcavets.com.
authors.forename: K E
authors.initials: KE
authors.lastname: Schmitt
authors.affiliation: CVCA, Cardiac Care for Pets, 140 Park Street SE, Vienna, VA 22180, USA.
authors.forename: B K
authors.initials: BK
authors.lastname: Lefbom
mesh_terms: D000818:Animals; D009202:Cardiomyopathies / Q000628:therapy / Q000662:veterinary*; D004283:Dog Diseases / Q000628:therapy*; D004285:Dogs; D005260:Female; D030342:Genetic Diseases, Inborn / Q000628:therapy / Q000662:veterinary*; D006325:Heart Atria / Q000002:abnormalities*; D006327:Heart Block / Q000628:therapy / Q000662:veterinary*; D006333:Heart Failure / Q000628:therapy / Q000662:veterinary*; D008297:Male; D010138:Pacemaker, Artificial / Q000662:veterinary*; D011379:Prognosis; D013575:Syncope / Q000601:surgery / Q000662:veterinary
keywords: Atrial standstill; Atrial thrombosis; Cardiomyopathy; Silent atrium