Electrophysiological properties of dual atrioventricular nodes in patients with right atrial isomerism.
Population
2 patients with right atrial isomerism
Design
Case_series
Authors
Discussion
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Member takes
Implication
May protect against reentrant tachycardia in right atrial isomerism; hypothesis-generating from single case report and should not change practice.
Structured PICO
P
Population
2 patients with right atrial isomerism (one with a delta wave on surface ECG without tachycardia attacks, and one without manifest pre-excitation but with recurrent narrow QRS tachycardia)
I
Intervention
Electrophysiological studies including isoprenaline infusion
O
Outcome
Electrophysiological properties of dual atrioventricular nodes (conduction directionality)surrogate
In patients with right atrial isomerism, dual atrioventricular nodes may exhibit only unidirectional conduction, which protects against reentrant tachycardia.
Cite This Study
Wu et al. (1995) studied this question.