In a patient with cardiac sarcoidosis and complex ventricular arrhythmias, discontinuing amiodarone and metoprolol, starting propranolol, and increasing the pacemaker rate successfully managed QT prolongation and recurrent ventricular tachycardia.
May support individualized beta-blocker and pacing adjustments for QT prolongation with VT in cardiac sarcoidosis; hypothesis-generating, prospective trials needed.
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Souza et al. (2025) studied this question.
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