Key result
Transcutaneous external pacing successfully rescues ~93% of dogs developing severe bradyarrhythmias during pacemaker placement.
Why the study?
The utility of transcutaneous external pacing during transvenous pacemaker implantation in dogs had not been evaluated.
Observational (n=77)
TEP may aid temporary management of asystole during canine pacemaker implantation; hypothesis-generating and requires prospective validation before wider adoption.
The aim of this retrospective study was to evaluate the utility of transcutaneous external pacing (TEP) during transvenous pacemaker implantation in dogs. Eighty-two pacemakers were implanted in 77 dogs because of third-degree atrioventricular block (AVB) (58 cases; 70.7 per cent), sinus node dysfunction (SND) (nine cases; 11.0 per cent), high-grade second-degree AVB (six cases; 7.3 per cent), persistent atrial standstill (PAS) (four cases; 4.9 per cent), post-radiofrequency catheter ablation of the bundle of His (four cases; 4.9 per cent) and vasovagal syncope with atrial fibrillation (one case; 1.2 per cent). TEP was initiated during general anaesthesia after the onset of asystole or profound bradycardia, and stopped when permanent pacing was started. The use of TEP was necessary in 27 cases: 19 cases of third-degree AVB, five of SND, two of PAS and one of vasovagal syncope. External pacing was successful in all but two dogs.
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Noomanová et al. (2010) conducted an observational in Bradyarrhythmias (e.g., third-degree atrioventricular block, sinus node dysfunction) (n=77). Transcutaneous external pacing (TEP) vs. No transcutaneous external pacing (unexposed) was evaluated on Need for and success of transcutaneous external pacing. Transcutaneous external pacing was required in 27 out of 77 dogs undergoing transvenous pacemaker implantation due to asystole or profound bradycardia, and was successful in all but two cases.
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