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02-10-2020 | Rhythm Puzzle – Question | Uitgave 3/2021 Open Access

Netherlands Heart Journal 3/2021

Broad complex tachycardia; never judge a book by its cover

Tijdschrift:
Netherlands Heart Journal > Uitgave 3/2021
Auteurs:
M. V. Regeer, L. F. Tops, M. de Riva Silva
A 69-year-old male presented to the emergency department with broad complex tachycardia (Fig.  1). He had been diagnosed with non-ischaemic cardiomyopathy with complete left bundle branch block (LBBB) and a left ventricular ejection fraction (LVEF) of 20% ten years earlier, for which he received cardiac resynchronisation therapy with defibrillator function (CRT-D). He was a good responder with LVEF improving to 49% and functioning in New York Heart Association (NYHA) functional class I. A recent outpatient clinic electrocardiogram (ECG) showed sinus rhythm with biventricular pacing (Fig.  2).
On the day of admission he woke up with palpitations after an afternoon nap. He denied chest pain, dyspnoea and dizziness. Upon arrival of emergency medical services he was haemodynamically stable with a blood pressure of 124/76 mm Hg and a broad complex tachycardia of initially 200 bpm, slowing down to 138 bpm after 150 mg amiodarone.
What is the origin of the broad complex tachycardia?

Answer

You will find the answer elsewhere in this issue.
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Netherlands Heart Journal

Het Netherlands Heart Journal wordt uitgegeven in samenwerking met de Nederlandse Vereniging voor Cardiologie en de Nederlandse Hartstichting. Het tijdschrift is Engelstalig en wordt gratis beschikbaa ...

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