Cost-effective adenosine dosing for the treatment of PSVT

We reviewed our experience with adenosine for the conversion of paroxysmal supraventricular tachycardia (PSVT) to determine whether the recommended dosing strategy of 6 mg, followed by 12 mg, is cost-effective in actual practice. We observed a 65% conversion rate to sinus rhythm with the initial dosage of 6 mg adenosine (95% CI, 54% to 75%), and, based on subsequent cost analysis, conclude that the current strategy should not be replaced by a 12 mg-first strategy. If the packaging of adenosine was changed so that 12 mg cost less than twice 6 mg, this analysis should be revisited. (Am J Emerg Med 1944;17:633-634. Copyright a 1994 by W.B. Saunders Company).