Adenosine administration for narrow complex tachycardia can precipitate rapid atrial fibrillation and haemodynamic collapse requiring electrical cardioversion.
Adenosine may precipitate haemodynamic collapse in narrow complex tachycardia; this case leaves open predictors of adverse response and need for prospective data.
A 26 year old woman presented with a narrow complex tachycardia with a rate of 210 beats/min. Adenosine converted this to atrial fibrillation with a rate of 280 beats/min with associated haemodynamic deterioration that needed electrical cardioversion.
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Cowell et al. (1994) studied this question.
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