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Physiologic Resynchronization Therapy: A Case of His Bundle Pacing Reversing Physiologic Conduction in a Patient with CHF and LBBB During 2 Years of Observation


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Pawel Dabrowski, Oddzial Kardiologii, Samodzielny Publiczny Szpital Wojewodzki im. Papieza Jana Pawla II w Zamosciu, Al. Jana Pawla II 10, 22-400 Zamosc, Poland. Fax: 48/84 6385674; E-mail:


Physiologic Resynchronization Therapy.  This is a case of a patient with congestive heart failure and left bundle branch block who was referred for cardiac resynchronization therapy implantation. Instead, a His bundle pacing was achieved with a narrow QRS complex. During 27 months of observation, the patient improved dramatically from NYHA class IV to I. Echo parameters improved significantly the LV diameter from 75/50 to 60/40 mm, EF from 28 to 50%, and mitral regurgitation from 4 to 2°. (J Cardiovasc Electrophysiol, Vol. 22, pp. 813-817, July 2011)

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