Verapamil and ventricular tachycardias.

In the absence of myocardial ischaemia, ventricular tachycardias occurring in patients with structural heart disease rarely respond to calcium antagonists like verapamil. In contrast, verapamil is markedly effective in the acute management of "supraventricular" tachycardias. Thus, intravenous verapamil has often been used for therapeutic and diagnostic purposes in patients with wide QRS complex tachycardias. This report details two unusual cases of ventricular tachycardia that are verapamil-sensitive. They highlight two major categories of "idiopathic" ventricular tachycardia, namely fascicular tachycardia and catecholamine-mediated ventricular tachycardia. The risks of verapamil administration for wide complex tachycardias are also reviewed.
AuthorsY T Tai, W H Chow, C P Lau, C C Yau
JournalChinese medical journal (Chin Med J (Engl)) Vol. 104 Issue 7 Pg. 567-72 (Jul 1991) ISSN: 0366-6999 [Print] CHINA
PMID1879219 (Publication Type: Journal Article)
Chemical References
  • Verapamil
  • Female
  • Humans
  • In Vitro Techniques
  • Injections, Intravenous
  • Male
  • Middle Aged
  • Tachycardia (drug therapy)
  • Tachycardia, Supraventricular (drug therapy)
  • Verapamil (therapeutic use)

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