November 1, 1992Pacing and Clinical Electrophysiology
Predictive Value of the P Wave at Implantation for Atrial Fibrillation After VVI Pacemaker Implantation
Key result
P wave duration in V1 at implantation was significantly longer in patients who developed atrial fibrillation compared to those who did not (114.6 vs 91.9 msec; P<0.001).
Why the study?
Does P wave duration in V1 at implantation predict the incidence of atrial fibrillation in VVI paced patients?
Population
172 VVI paced patients for symptomatic atrioventricular block or sick sinus syndrome and in sinus rhythm at…
Design
Cohort
Follow-up
5 years
Authors
Discussion
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Implication
Longer P-wave duration in V1 was associated with AF after VVI pacing; leaves open utility for guiding device selection.
Study Design
Type
Cohort (n=172)
Structured PICO
Does P wave duration in V1 at implantation predict the incidence of atrial fibrillation in VVI paced patients?
P
Population
172 patients in sinus rhythm receiving a VVI pacemaker for symptomatic atrioventricular block or sick sinus syndrome, followed for 5 years.
E
Exposure
P wave duration measurement in V1 at implantation
O
Outcome
Incidence of atrial fibrillation during 5 years of follow-uphard clinical
Main Result
p-value: p=<0.001
P wave duration in V1 at implantation is a strong predictor of atrial fibrillation in VVI paced patients, which can help guide the choice of pacing mode (AAI/DDD vs VVI).
Cite This Study
Snoeck et al. (1992) conducted a cohort in Symptomatic atrioventricular block or sick sinus syndrome (n=172). Prolonged P wave duration in V1 vs. Shorter P wave duration was evaluated on Development of atrial fibrillation (p=<0.001). P wave duration in V1 at implantation was significantly longer in patients who developed atrial fibrillation compared to those who did not (114.6 vs 91.9 msec; P<0.001).