Santilli RA, Moïse NS, Pariaut R, et al. Supraventricular beats and rhythms. In: Santilli RA, Moïse NS, Pariaut R, Perego M, eds. Electrocardiography of the Dog and Cat – Diagnosis of Arrhythmia. 2nd ed. Edra; 2018:145–158.
Kovacevic A, Sastravaha A. Clinically silent atrial dissociation in a dog. J Vet Cardiol. 2007;9(2):135–137.
Scollan K, Bulmer BJ, Heaney AM. Electrocardiographic and echocardiographic evidence of atrial dissociation. J Vet Cardiol. 2008;10(1):53–55.
Thorn CL, Vezina-Audette R, Gelzer AR. Conversion of atrial dissociation with lidocaine in a dog. J Vet Cardiol. 2017;19(3):283–286.
Brunner A, Kovacevic A. Atrial dissociation in a boxer with a carcinoma of the middle ear. Article in German. Schweiz Arch Tierheilkd. 2020;162(5):319–323.
Li YH, Lo HM, Lin FY, Lin JL, Lien WP. Atrial dissociation after atrial compartment operation for chronic atrial fibrillation in mitral valve disease. Pacing Clin Electrophysiol. 1998;21(4 pt 1):756–759.
Jones DJ, Stehling LC, Zauder HL. Cardiovascular responses to diazepam and midazolam maleate in the dog. Anesthesiology. 1979;51(5):430–434.
Muir W, Lerche P, Wiese A, Nelson L, Pasloske K, Whittem T. Cardiorespiratory and anesthetic effects of clinical and supraclinical doses of alfaxalone in dogs. Vet Anaesth Analg. 2008;35(6):451–462.
Chung KY, Walsh TJ, Massie E. A review of atrial dissociation, with illustrative cases and critical discussion. Am J Med Sci. 1965;250:72–78.
Chung EK. A reappraisal of atrial dissociation. Am J Cardiol. 1971;28(1):111–117.
Hajsadeghi S, Oraii S, Riahi H, et al. Atrial dissociation in a middle aged patient: a case report. Acta Med Iran. 2014;52(8):641–643.
Ramos A, Gelband H, Flinn CJ, Ferrer PL, Wolff GS, Tamer DF. Benign nature of atrial dissociation in pediatric patients. Pediatr Cardiol. 1983;4(1):1–3. doi:10.1007/BF02280998
Szekely A, Zamolyi K, Harsanyi, Kekes E. Atrial dissociation. A case of unilateral slow atrial rhythm. J Electrocardiol. 1988;21(2):106–110.
Chung EK. Parasystole. Prog Cardiovasc Dis. 1968;11(1):64–81.
Moïse NS, Pariaut R, Gelzer AR, Kraus MS, Jung SW. Cardioversion with lidocaine of vagally associated atrial fibrillation in two dogs. J Vet Cardiol. 2005;7(2):143–148.
Muir WW. Physiology. Cardiovascular system. In: Tranquilli WJ, Thurmon JC, Grimm KA, eds. Lumb & Jones’ Veterinary Anesthesia and Analgesia. 4th ed. Blackwell Publishing; 2007:61–116.
Bassi GS, Kanashiro A, Coimbra NC, Terrando N, Maixner W, Ulloa L. Anatomical and clinical implications of vagal modulation of the spleen. Neurosci Biobehav Rev. 2020;112:363–373.
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A 9-year-old 31-kg castrated male mixed-breed dog was referred to the Veterinary Teaching Hospital of the University of Bologna for treatment of a 4 X 4-cm splenic mass incidentally identified by the referral veterinarian. The dog was otherwise healthy; its past medical history was unremarkable. On presentation, cardiac auscultation revealed an irregular heart rhythm with a heart rate of 80 to 120 beats/min. The femoral pulses were strong and synchronous with the heartbeat. The remaining physical findings were normal. Preanesthetic screening included routine blood tests (CBC, serum biochemical panel, and restricted coagulation panel) and thoracic radiography, which yielded unremarkable