Atrial-Based Pacing for Sinus Node Dysfunction in Dogs: Initial Results
Key result
Atrial pacing (AAI) in dogs with sinus node dysfunction showed low long-term risk of AV block (1/16), though lead dislodgment (3/16), perforation (2/16), and rising thresholds (3/16) occurred.
Why the study?
Is atrial pacing (AAI) feasible and safe in dogs with sinus node dysfunction?
Population
16 dogs with sinus node dysfunction (SND)
Design
Preclinical
Follow-up
mean 292 days (range 45 to 1,227 days)
Authors
Discussion
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Implication
Supports AAI pacing consideration in canine SND; leaves open lead durability questions for larger trials.
Study Design
Type
Observational (n=16)
Structured PICO
Is atrial pacing (AAI) feasible and safe in dogs with sinus node dysfunction?
P
Population
16 dogs with sinus node dysfunction (SND)
I
Intervention
Atrial pacing (AAI)
O
Outcome
Feasibility and complications of AAI pacing (including AV block, lead dislodgment, lead perforation, and rising thresholds)safety
In dogs with sinus node dysfunction, atrial pacing rarely results in long-term AV block, but is associated with notable risks of lead dislodgment, perforation, and rising pacing thresholds.
Limitations
- Small group of dogs
- Complications may be related to the initial skill level of the operator or the leads that were used
- Small sample size
Cite This Study
Estrada et al. (2012) conducted an observational in Sinus node dysfunction (SND) (n=16). Atrial pacing (AAI) was evaluated on Feasibility of atrial pacing (AAI). Atrial pacing (AAI) in dogs with sinus node dysfunction showed low long-term risk of AV block (1/16), though lead dislodgment (3/16), perforation (2/16), and rising thresholds (3/16) occurred.