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  • Title: Rate-dependent premature beats in man.
    Author: Klein HO.
    Journal: Chest; 1976 Mar; 69(3):441-4. PubMed ID: 971623.
    Abstract:
    Ventricular premature beats (VPBs) appeared in a patient after pacemaker insertion for complete heart block secondary to acute myocardial infarction. Contrary to expectations, the frequency of VPBs was directly related to the basic pacemaker rate. The VPBs are either reentrant beats or represent VPBs arising from pacemaker cells with "slow-response" characteristics, which have been shown to become more automatic with increasing rates of electrical stimulation. This case documents the phenomenon of rate dependency of VPBs in man and discusses its practical importance.
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