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Updated: Aug 29, 2026

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
Exercise-induced left bundle branch block in a young female athlete
Ugo Giordano1, Gaia Crosio, Armando Calzolari
1Sports Medicine Unit, Department of Pediatrics, Bambino Gesù Children's Hospital, Research Institute, Rome, Italy. giordano@opbg.net
Abstract:
An 11-year-old female, in apparent good health, was referred to our Institute because of exercise-induced left bundle branch block detected during a Master's step test performed to obtain the clearance for competitive sport. The tests that we performed to investigate the possible causes were all negative. We suspect, however, that the left bundle branch block is the initial sign of cardiomyopathy. If our suspicions are correct, close follow-up is important to chart the possible progression of the disease.
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