1. Missing diagnosis of preexcitation syndrome on ECG
- Author
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Radou Moisei, Ibrahim Nossier, Lucian Muresan, Arnaud Terrier De La Chaise, Olivier Selton, Soumaya Jarmouni, Béatrice Brembilla-Perrot, Rouzbeh Valizadeh Moejezi, Pierre Yves Zinzius, Marius Andronache, Jean Marc Sellal, Pierre Louis, Jérôme Schwartz, and Daniel Beurrier
- Subjects
Tachycardia ,education.field_of_study ,medicine.medical_specialty ,business.industry ,Population ,Group ii ,Retrospective cohort study ,Accessory pathway ,Asymptomatic ,Electrophysiology ,Internal medicine ,Anesthesia ,Cardiology ,Medicine ,Sinus rhythm ,cardiovascular diseases ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,education - Abstract
Electrocardiographic criteria of preexcitation syndrome are sometimes not visible on ECG in sinus rhythm (SR). The purpose of the study was to evaluate the significance of unapparent preexcitation syndrome in SR, when overt conduction through accessory pathway (AP) was noted at atrial pacing. Methods Anterograde conduction through atrioventricular AP was identified at electrophysiological study (EPS) in 712 patients, studied for tachycardia (n=316), syncope (n=89) or life-threatening arrhythmia (n=55) or asymptomatic preexcitation syndrome (n=252). ECG in SR at the time of EPS was analysed. Results 78 patients (11%) (group I) had a normal ECG in SR and anterograde conduction over AP at atrial pacing; 634 (group II) had overt preexcitation in SR. Group I was as frequently asymptomatic (35%) as group II (35%), had as frequently tachycardias, syncope or life-threatening arrhythmia as group II (43, 5, 2% vs 43, 13, 8%). AP was more frequently left lateral in group I (57%) than in group II (36%)(p Conclusions The frequency of unapparent preexcitation syndrome represents 11% of our population with anterograde conduction through an AP and could be underestimated. The risk to have a malignant form is as high as in patients with overt preexcitation syndrome in SR.
- Published
- 2013