Maximum P-wave duration

1. Maximum P-wave duration predicts new-onset atrial fibrillation in humans (Sick sinus syndrome after pacemaker implantation; prediction from the 3-month landmark) (HR 1.200/10 ms; 95% CI 1.085–1.326).

   “maximum P-wave duration (HR 1.200/10 ms; 1.085–1.326)”

   HumansSick sinus syndrome after pacemaker implantation; prediction from the 3-month landmarkPer 10 msMedian 41.6 monthsn = 322

   Device-detected new-onset atrial fibrillation after dual-chamber pacemaker implantation in patients with sick sinus syndrome under managed ventricular pacing: a risk nomogram from the 3-month landmark

   Frontiers in cardiovascular medicine·Oct 30, 2026

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1. Ultramarathon running is associated with maximum P-wave duration in humans (Ultramarathon athletes compared with age- and sex-matched healthy volunteers) (114.24 ± 7.95 ms vs. 105.76 ± 7.15 ms).

   “Ultramarathon athletes had significantly higher maximum P wave duration (114.24 ± 7.95 ms vs. 105.76 ± 7.15 ms, p < 0.001)”

   HumansUltramarathon athletes compared with age- and sex-matched healthy volunteers≥1 race of ≥100 km or ≥60 km in the past year70% males

   Comparison of P wave indices between ultramarathon athletes and general population

   Physiological reports·Feb 1, 2026

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