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Transesophageal Measurement of Left Atrial Refractoriness
Author(s) -
SIMONCELLI UMBERTO,
MARCHETTI ALESSANDRA,
SORGATO ALBERICO,
FAGGIANO POMPILIO,
ONEGLIA CARLO,
RUSCONI CESARE
Publication year - 1993
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.1540-8159.1993.tb01815.x
Subject(s) - medicine , refractory period , cardiology
During electrophysiological evaluation of supraventricular arrhythmias the transesophageal (TEEP) approach may be the first step but is limited in information available. One difficulty is in measuring left atrial refractoriness as left atrial capture is seldom defectable either on ECG or via an esophageal lead. The problem may be eliminated and left atrial refractoriness measured via the esophagus, utilizing two or three extrastimuli to scan diastole to determine whether the atrial refractory period has been entered by the first extrastimulus. Measurement of left atrial and/or atrioventricular node or accessory pathway refractoriness then becomes possible.