Assoc Prof Harry Mond
December 2, 2024
I was asked for an opinion on this ECG.
There is sequential shortening of the PR interval and no dropped beats.This is not AV dissociation or isorhythmic AV dissociation as the R to R intervals are different and related to the PR intervals.This is reversed Wenckebach and below is another example.
Reversed Wenckebach is a rare ECG finding where there is sequential shortening of the PR interval and when it reaches its shortest value, the sequence is repeated often without a dropped beat.When a dropped beat occurs, there may be syncope and a permanent pacemaker required.In the good old days this was an arrhythmia associated with digitalis toxicity.Dr Harry Mond
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May 14, 2025
Fusion is another lesson in timing! Fusion beats are an amalgam of two competing rhythms. Both are responsible for partial depolarization of the respective chambers and depending on the contribution of each, result in progeny with similarities to one or both parents.
May 14, 2025
The ventricular ectopic compensatory pause is a lesson in timing!
