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- W2777773280 abstract "Uncertainty regarding the basis for the >50 ms jump used to define dual AV nodal physiology prompted us to calculate the threshold for significant change in the A1H1 and V1A1 intervals during decremental pacing. From this, we sought to establish whether ranges of AH and VA intervals are unique to the fast (FP) and slow (SP) AV nodal pathways among 100 pts. undergoing routine EP testing. The jump, defined as 2 STD beyond the mean increment in the A1H1 or V1A1 interval during decremental pacing, was ≥35 ms or ≥25ms, respectively. Among 61 pts. with ≥35ms jump, none had longest pre-jump A1H1intervals >200ms and none had shortest post-jump A1H1intervals <150ms. Among 89 pts. with intact retrograde conduction, 26 had ≥25ms jump in V1A1interval. In all 26, V1A1intervals ≥150ms corresponded to earliest atrial activation at the coronary sinus os while those <150ms had earliest activation in the His recording. Using 200ms to define minimum SP AH interval, SP prevalence was 92%. The data suggest that 200 ms may be a minimum SP AH interval and 150 ms is a maximum FP AH interval with values between 150-200 indeterminate. V1A1 intervals <150 ms and those ≥150 ms suggest FP and SP conduction time limits, respectively." @default.
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- W2777773280 date "2005-10-01" @default.
- W2777773280 modified "2023-09-27" @default.
- W2777773280 title "Identifying the Fast and Slow AV Nodal Pathway Conduction Times Using the AH and VA Intervals Recorded in the his Bundle Electrogram" @default.
- W2777773280 doi "https://doi.org/10.1016/j.eupc.2005.08.033" @default.
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