Nonconducted PACs are ones that occur so early after the previous beat that the ventricles are still refractory&there will not be a contraction& thus no QRS complex. Also the P wave may look different from the normal sinus P wave. The ectopic premature beat causes a reset of the sinus node( post ectopic depression). I'm not sure you're seeing true sinus node arrest which is due to damage.See cardi
Answered 12/31/2022
0 views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question