Article Text

Download PDFPDF
Accordion QRS dance
  1. Oscar Thabouillot1,2,
  2. Kilian Bertho2,3,
  3. Romain Kedzierewicz2,3
  1. 1 10th Medical Center - 157th Medical Field Unit, French Military Health Service, Marseille, France
  2. 2 French Military Health Service, Paris, France
  3. 3 Emergency Medical Department, Paris Fire Brigade, Paris, France
  1. Correspondence to Dr Oscar Thabouillot, 10th Medical Center - 157th Medical Field Unit, French Military Health Service, Marseille 94160, France; thabouillot{at}

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Clinical introduction

An 81-year-old woman was admitted to the emergency department for collapse. She has no known medical history.

The clinical examination shows a heart rate oscillating between 160 and 180, a BP at 78/55 mm Hg, a GCS at 14 (E : 4, V : 4, M : 6), an oxygen saturation at 89%. She has cyanosis going from the feet to the knees.

An ECG was done (see figure 1).

Figure 1

ECG at the emergency department.


What is your diagnosis ?

  1. Ventricular tachycardia.

  2. Ventricular fibrillation.

  3. Wolff-Parkinson-White. …

View Full Text


  • Contributors OT and RK wrote the article. KB gave advices about the interpretation of the ECG.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; internally peer reviewed.