Why the study?
Does a fine no. 4 French quadripolar catheter improve simultaneous atrial stimulation and recording compared to bipolar catheters in subjects undergoing transesophageal studies?
Does a fine no. 4 French quadripolar catheter improve simultaneous atrial stimulation and recording compared to bipolar catheters in subjects undergoing transesophageal studies?
The use of a fine no. 4 French quadripolar catheter allows for simultaneous atrial stimulation and recording, improving the diagnostic value of transesophageal studies.
May allow simultaneous atrial stimulation and recording in transesophageal studies; leaves open diagnostic superiority over bipolar catheters.
Transesophageal pacing and recording are valuable techniques in the diagnosis and treatment of patients with arrhythmias. Bipolar pacing with bipolar catheters has been effective, but recording from the same electrodes is not possible during and immediately following pacing. We utilized a fine no. 4 French quadripolar catheter in 21 subjects to stimulate the atrium and record atrial electrical activity simultaneously. Pacing characteristics were equivalent to previously used bipolar catheters and recording was markedly enhanced. Bipolar atrial electrograms could be recorded either during pacing or at the first atrial depolarization following pacing in all patients. Thus, this quadripolar pacing lead improves the diagnostic value of studies involving transesophageal atrial pacing and recording.
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Kerr et al. (1986) studied this question.
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