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2-4) While the pathophysiology of the coexistence of these two disorders is not fully understood, it is thought that both stress induced cardiac dysfunction due to exaggerated sympathetic activation and use of sympathomimetic bronchodilators instigates the myocardial stunning in such patients.
If additional adrenergic drugs, including other short-acting sympathomimetic bronchodilators or epinephrine, are to be administered by any route, they should be used with caution to avoid deleterious cardiovascular effects.