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Assoc Prof Harry Mond
December 17, 2024
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AV with slow ventricular response.
The rate is 40BPM.
In the good old days this was digitalis toxicity until proven otherwise.
The clue is Bifascicular block.
Many cardiologists are reluctant to call this complete heart block as there is no AV dissociation.
Don’t be scared to call this complete heart block because that is what it is!!
Permanent pacing required.
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Dr Harry Mond
CardioScan Medical Director
September 11, 2026
Fusion beats are an amalgam of two competing rhythms within the same chamber, atrial or ventricular. They are not “abnormal” beats and are a lesson in timing. For fusion beats to occur, two foci must commence propagation at or near the same time and both contribute to chamber depolarization. Both must be either atrial or ventricular and depending on the contribution of each, the resultant progeny have similarities to one or both parents.
August 26, 2026
Is this the impossible pacemaker ECG? It took me a while to work out what was going on. Is it pacemaker malfunction? What do you think?
July 24, 2026
I came upon these ECG tracings of ventricular tachycardia from a Holter study in a 79-year old asymptomatic female. What do you think?
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