A member asked:

I have a moderate ant of pvcs daily. i see a cardiologist. i'm on toprol (metoprolol) 50 mg xl. still having them. am i at an increased risk for v-fib?

4 doctors weighed in across 2 answers

Structural disease?: Without structural heart disease PVC is benign and will not generate into vfib. Beside cardiac disease causing PVC there ste other conditions such as electrolyte abnormalities, stress. Sleep deprevation, alcohol, smoking could case pvc. Hope my answer is helpful please let me know if you havd any questions.

Answered 6/10/2014

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Dr. Milton Alvis, jr answered

Specializes in Preventive Medicine

Higher Than No PVCs: Primary reason v. Arrhythmias: areas of damaged muscle slowing conduction & facilitating re-entry pathways. Primary driver damage: ischemia, loss of sufficient blood supply. Artery ds, known for >7 decades from autopsy, to begin ~age 7. Biggest driver lipoproteins. Thus optimize NMR particle test: LDL ?700 nmol/l, large HDL ?9 µmol/l), hba1c ?5.0 sbp ?120. Coreg cr superior outcomes to toprol (metoprolol) xl.

Answered 11/28/2017

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