Key result
Electrogram maximum derivatives DMAX and SMAX significantly decreased from the acute to chronic phase of pacemaker treatment (p < 0.02 and p < 0.01, respectively).
Why the study?
How do electrogram derivatives, amplitudes, and impedance change from acute to chronic phases of permanent pacemaker treatment?
Observational (n=71)
How do electrogram derivatives, amplitudes, and impedance change from acute to chronic phases of permanent pacemaker treatment?
p-value: p=<0.02; <0.01
Electrogram maximum derivatives decrease significantly from acute pacemaker implantation to chronic generator replacement, which combined with low Helmholtz capacity of small electrodes may increase the risk of demand failure.
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May raise demand failure risk in chronic pacing; hypothesis-generating for electrode optimization in observational cohorts.
Ole‐Jørgen Ohm (1979) conducted an observational in Permanent pacemaker treatment (n=71). Chronic phase of pacemaker treatment vs. Acute phase (first implantation) was evaluated on Electrogram maximum derivatives (DMAX, SMAX) (p=<0.02; <0.01). Electrogram maximum derivatives DMAX and SMAX significantly decreased from the acute to chronic phase of pacemaker treatment (p < 0.02 and p < 0.01, respectively).
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