The purpose of this study was to determine if intraosseous administration of adenosine is effective and, if so, to establish therapeutic dosage criteria for the intraosseous route compared with peripheral or central venous routes.
Randomized, unblinded, crossover, within-animal control study.
University hospital in Ohio.
Thirty newly weaned piglets.
Thirty newly weaned pigs were transesophageally (n=26) or transvenously (n=4) paced at a cycle length that was 10% longer than the Wenckebach threshold. The minimum effective dose of adenosine necessary to induce atrioventricular block during pacing was recorded for peripheral venous, central venous, and intraosseous routes.
Measurements and Results:
The baseline resting heart rate and Wenckebach thresholds were not statistically different between subjects or between different routes of administration. The intraosseous route required a minimum effective dose of 127 μg/kg. Using a log transformation, the difference between central venous and peripheral venous doses was found to be statistically significant. The intraosseous dose was not statistically different from the central venous or peripheral venous doses.
The intraosseous route is an effective way of administering adenosine. The peripheral venous dose required to achieve atrioventricular block is higher than the central venous dose and the intraosseous dose is intermediary to the central venous and peripheral venous doses.(Arch Pediatr Adolesc Med. 1994;148:616-619.
Getschman SJ, Dietrich AM, Franklin WH, Allen HD. Intraosseous Adenosine: As Effective as Peripheral or Central Venous Administration? Arch Pediatr Adolesc Med. 1994;148(6):616–619. doi:10.1001/archpedi.1994.02170060070014
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: