PVC and PAC

Hi all, Is there a value that says how many PVC and PAC in an hour is consider risk for a normal patient. I found these values from some of the papers I've read, but I would like second opinon.   PVC: in a hour of ECG report No risk: <60PVC/hr Risk 60-120PVC/hr High Risk: >120PVC/hr PAC: in a hour of ECG report No risk: <80 pac Risk: 900-1200 pac High Risk: >1200 pac    
Source: Doc2Doc BMJ Cardiology - Category: Cardiology Authors: Source Type: forums
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