Key result
Recording left atrial potentials from the pulmonary artery was successfully validated using simultaneous high left atrium recordings during sinus or paced ectopic atrial rhythm.
Why the study?
Does recording from the pulmonary artery validly reflect left atrial activity compared to high left atrium recording in patients with atrial septal defect or patent foramen ovale?
Does recording from the pulmonary artery validly reflect left atrial activity compared to high left atrium recording in patients with atrial septal defect or patent foramen ovale?
This study validates the feasibility of recording left atrial potentials from the pulmonary artery in humans.
Answers are grounded in this paper and cite their sources.
Supports pulmonary artery recording as feasible alternative for left atrial signals in ASD/PFO; leaves open broader validation before clinical adoption.
The purpose of the present study was to validate the recording of left atrial activity from the pulmonary artery in man. Fifteen patients with atrial septal defect or patent foramen ovale were studied. Atrial activity was recorded simultaneously from the pulmonary artery and the high left atrium either during sinus rhythm or during paced ectopic atrial rhythm.
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Breithardt et al. (1980) studied this question. Recording left atrial potentials from the pulmonary artery was successfully validated using simultaneous high left atrium recordings during sinus or paced ectopic atrial rhythm.
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