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Torsade in a patient with left bundle branch block: is there a long QT? (And: Left Bundle Pacing).

Dr. Smith's ECG Blog

CASE CONTINUED She was admitted to the ICU. Finally, do a coronary angiogram Possible alternative to pacing is to give a beta-1 agonist to increase heart rate. Smith has provided excellent overview of measuring and correcting QT interval in scenarios where QRS duration is prolonged (e.g., LBBB, ventricular pacing, etc.)."