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herzschrittmachersystem with follow-up survey of premature atrial contractions based on qt data
herzschrittmachersystem with follow-up survey of premature atrial contractions based on qt data
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机译:Herzschrittmachersystem,基于qt数据对房性早搏进行随访
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摘要
A dual chamber pacemaker system and method provide for safe tracking of PACs. The pacemaker obtains an indication of when the T-wave has occurred within the cycle when the PAC occurs, either by measuring the T wave during the cycle, or by getting a QT interval measure from one or more prior cycles. The pacemaker determines a safe V-V interval as the QT interval measure plus a safety factor, the safety factor being selected so as to insure that a pulse that tracks the PAC does not get delivered during the vulnerable period. A PAC is tracked if and only if the VA interval plus the AV delay is as great as the safe V-V interval.
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