BMJ Case Reports 2012; doi:10.1136/bcr-2012-007821
  • Unexpected outcome (positive or negative) including adverse drug reactions

Adenosine-induced worsening of supraventricular tachycardia

  1. Ashfaq Patel2
  1. 1Department of Cardiology, Al Ahli Hospital, Doha, Qatar
  2. 2Department of Cardiology, Hamad Medical Corporation, Doha, Qatar
  1. Correspondence to Dr Georgey Koshy Kunnumpuram, georgeyk{at}


An approximately 20-year-old to 30-year-old patient presented with a haemodynamically stable supraventricular tachycardia . The patient was managed with intravenous adenosine primarily, with two bolus doses of 6 and 12 mg. This, however, caused a rare paradoxical surge of tachycardia with mild haemodynamic compromise. The patient further required a combination of Metoprolol and Verapamil administration to slow down and reverse the arrhythmia. Following this the patient remained stable with no further episodes till discharge.

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