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Suffering from Premature Ventricular Contraction - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Excellent Posted in: Valvular Heart Disease
Answered by

General & Family Physician
Practicing since : 2005
Answered : 2408 Questions
User :   I had sinus tach 130s so I held my breath and my heart rate went to 150s with frequent pvc and a 3 beat run what does that mean?
Doctor :   Hi,
User :   hello
Doctor :   PVC is Premature Ventricular contraction /complex
User :   Well what do you think? I have had frequent PVCs for years. But this is a new thing..PSVT that the rate went up when I held my breath and increase in PVC with a few 3 beat runs. The PSVT corrected itself in about 20 minutes. But was curious why the vagel manouver made my heart rate go up.
Doctor :   In actual the heart rate is maintained by the rate at which the impulse is produced ( by SAN sino atrial node on the atrium ) and transferred to the ventricle
Doctor :   in rates more than 15o to 170 , the impluse conduction to the ventricle is affected resulting in firing of the ventricular myocardium ( Purkinje fibers ) and lead into premature ventricular contractions
Doctor :   and in you it was for about 3 beats , i mean the ventricular impulse was generated in 3 spikes due to the failed transfer of affected transfer of the impulse from the atrium
User :   I do have a history of some mild left heart enlargement probably caused by sleep apnea that has now resolved with wt loss. Do you think this anything to be concerned about?
Doctor :   yes, in cardiomyotrophy the PVC are expected more if there is a base of PSVT
Doctor :   i would ask you to confirm the complete regression of the hypertrophy of the ventricles by a ECHO
Doctor :   only then its relation with present problem can be evaluated
User :   Ok , thank you for your input. I am a critical care nurse and we can tend to overthink our own cardiac issues!
Doctor :   i agree with you
Doctor :   You are welcome
Doctor :   Thanks for consulting me
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