A 75-year-old man presented to the emergency department with syncope. His ECG rhythm showed a broad complex tachycardia. After synchronized cardioversion with a monophasic 100 J shock he developed coarse ventricular fibrillation. The initial rhythm after the shock was sinus rhythm with no pulse or signs of life. The initial QRS was enlarged, while the following eight QRS complexes showed progressively decreasing ST-segment elevation. There was no palpable carotid pulse associated with this ECG activity. This case shows a combination of electrical and mechanical stunning after defibrillation.
Original languageEnglish
Pages (from-to)3-4
Number of pages2
Publication statusPublished - 2008


  • Heart Arrest
  • Resuscitaiton


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