Assoc Prof Harry Mond
December 2, 2024
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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.
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Dr Harry Mond
July 9, 2026
No tricks. Just a selection of tracings from a Holter study.Look at each one carefully, use calipers, arrows and highlight and write down your conclusions.
July 2, 2026
I came across these two tracings from the same patient during Holter reporting. Do you agree with the reported diagnoses?
June 26, 2026
I was asked to review this Holter monitor, the report of which stated: “Sinus rhythm, ventricular rate ~ 90 bpm, Wenckebach AV block”. What do you think?
