Arrhythmias may occur in the potential organ donor at the time of brain herniation. Use of high dose inotropes, acid base derangements, electrolyte abnormalities, hypothermia and myocardial injury will further increase the incidence of arrhythmias. Timely correction of these problems is important as arrhythmias in an organ donor may be difficult to treat. The heart is denervated after brain death and is atropine-resistant. Chronotropic agents (isoproterenol hydrochlo-ride or epinephrine) or a pacemaker may be necessary to treat bradycardia.
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