Kienle RD. Interventional antiarrhythmic therapy. In: Kittleson MD, Kienle RD, eds. Small Animal Cardiovascular Medicine. 2nd ed. Veterinary Information Network; 2005. Accessed March 3, 2021. https://www.vin.com/Members/proceedings/Proceedings.plx?CID=SACARDIO&O=VIN
Wess G, Thomas WP, Berger DM, Kittleson MD. Applications, complications, and outcomes of transvenous pacemaker implantation in 105 dogs (1997–2002). J Vet Intern Med. 2006;20(4):877–884.
Oyama MA, Sisson DD, Lehmkuhl LB. Practices and outcome of artificial cardiac pacing in 154 dogs. J Vet Intern Med. 2001;15(3):229–239.
Ward JL, DeFrancesco TC, Tou SP, Atkins CE, Griffith EH, Keene BW. Complication rates associated with transvenous pacemaker implantation in dogs with high-grade atrioventricular block performed during versus after normal business hours. J Vet Intern Med. 2015;29(1):157–163.
Sisson D, Thomas WP, Woodfield J, Pion PD, Luethy M, DeLellis LA. Permanent transvenous pacemaker implantation in forty dogs. J Vet Intern Med. 1991;5(6):322–331.
Santilli RA, Giacomazzi F, Porteiro Vázquez DM, Perego M. Indications for permanent pacing in dogs and cats. J Vet Cardiol. 2019;22:20–39.
LeBlanc NL, Agarwal D, Menzen E, Nomi K, Sisson DD, Scollan KF. Prevalence of major complications and procedural mortality in 336 dogs undergoing interventional cardiology procedures in a single academic center. J Vet Cardiol. 2019;23:45–57.
Johnson MS, Martin WS, Henley W. Results of pacemaker implantation in 104 dogs. J Small Anim Pract. 2007;48(1):4–11.
Santilli R, Moise NS, Pariaut R, et al. Electrocardiography and pacing. In: Santilli R, Moise NS, Pariaut R, eds. Electrocardiography of the Dog and Cat: Diagnosis of Arrhythmias. 2nd ed. Edra; 2018:313–323.
Safavi-Naeini P, Saeed M. Pacemaker troubleshooting: common clinical scenarios. Tex Heart Inst J. 2016;43(5):415–418.
Swerdlow CD, Koneru JN, Gunderson B, Kroll MW, Ploux S, Ellenbogen KA. Impedance in the diagnosis of lead malfunction. Circ Arrhythm Electrophysiol. 2020 13(2):e008092. doi:10.1161/CIRCEP.119.008092
Dohrmann ML, Goldschlager NF. Myocardial stimulation threshold in patients with cardiac pacemakers: effect of physiologic variables, pharmacologic agents, and lead electrodes. Cardiol Clin. 1985;3(4):527–537.
Achen SE, Miller MW, Nelson DA, Gordon SG, Drourr LT. Late cardiac perforation by a passive-fixation permanent pacemaker lead in a dog. J Am Vet Med Assoc. 2008;233(8):1291–1296.
García-Guasch L, Sá Borges C, Sousa P, Manubens Grau J. Identification and management of a subacute right ventricular perforation by an active-fixation permanent pacemaker lead in a dog. J Vet Cardiol. 2019;22:113–120.
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A 12-year-old 2.5-kg sexually intact male Pomeranian mix was presented for pacemaker interrogation 2 weeks following placement of a transvenous VVI pacemaker with active lead fixation. The pacemaker was placed following episodes of collapse secondary to third-degree atrioventricular (AV) block. Examination, radiographic, and echocardiographic findings prior to pacemaker implantation were consistent with stage B1 chronic degenerative valve disease. The dog was bright and alert on presentation and was reported to be asymptomatic by the owner, other than frequent head shaking since surgery. The owner reported a heart rate at home ranging from 60 to 80 beats/min. On physical examination,