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DDD Pacing and Interatrial Conduction Block: Importance of Optimal AV Interval Setting
Author(s) -
PARRAVICINI UMBERTO,
MEZZANI ALESSANDRO,
BIELLI MASSIMO,
CAMILLO TITO,
PARDO NICOLÒ FRANCHETTI,
IRAGHI GABRIELE,
ZE FRANCO,
ZANETTA MARCO
Publication year - 2000
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2000.tb00981.x
Subject(s) - medicine , cardiology , sick sinus syndrome , block (permutation group theory) , atrioventricular block , anesthesia , mathematics , geometry
The case of a 83‐year‐old patient undergoing DDD pacemaker implantation for sick sinus syndrome with postimplant detection of advanced interatrial conduction block is described. At nominal AV interval programming values (175 ms), absence of P wave following an atrial spike was observed, and the presence of an interatrial conduction disturbance was demonstrated by a Doppler transmitral flow pattern analysis and transesophageal ECG recording. AV interval lengthening up to 300 ms resulted in proper timing of atrial and ventricular contractions. Awaiting for conclusive data about biatrial pacing, interatrial conduction blocks can be managed in some cases by proper programming of conventional DDD systems.