Clinical Significance of Prolonged P Wave Width After Right Atrial Appendage Pacing in Sick Sinus Syndrome

The present study investigated both the clinical significance of atrial fibrillation (AF) before right atrial appendage (RAA) pacing and the influence of prolonged P wave on AF occurrence in RAA-paced patients with sick sinus syndrome (SSS). Fifty-seven patients (age 68±10 years; 19 men, 38 women) w...

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Bibliographic Details
Published in:Circulation Journal 2003, Vol.67(6), pp.485-489
Main Authors: Endoh, Yasuhiro, Nakamura, Ayako, Suzuki, Tsuyoshi, Mizuno, Masayuki, Takara, Ayako, Ota, Yoshimi, Kasanuki, Hiroshi
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Atrial Appendage - physiopathology
Atrial fibrillation
Atrial Fibrillation - etiology
Atrial Fibrillation - physiopathology
Atrial Fibrillation - prevention & control
Biological and medical sciences
Bradycardia - physiopathology
Bradycardia - prevention & control
Cardiac dysrhythmias
Cardiac Pacing, Artificial - methods
Cardiology. Vascular system
Electrocardiography
Female
Heart
Humans
Male
Medical sciences
Middle Aged
Recurrence
Right appendage pacing
Sick sinus syndrome
Sick Sinus Syndrome - complications
Sick Sinus Syndrome - physiopathology
Sick Sinus Syndrome - therapy
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Summary:The present study investigated both the clinical significance of atrial fibrillation (AF) before right atrial appendage (RAA) pacing and the influence of prolonged P wave on AF occurrence in RAA-paced patients with sick sinus syndrome (SSS). Fifty-seven patients (age 68±10 years; 19 men, 38 women) with SSS who underwent RAA pacing were divided into 2 groups: 23 patients without AF before pacing (I + II; Rubenstein I or II) and 34 patients with AF before pacing (III; Rubenstein III). The P wave duration in intrinsic rhythm and with RAA pacing were measured on the standard electrocardiography in leads II and V1 with the use of a digitizing tablet. Group III was further subdivided into 2 groups: 20 patients (IIIb) with a paced P wave >130 ms in both leads II and V1 and the other 14 patients (IIIa). The duration of the intrinsic P wave in leads II and V1 was significantly greater in group III than in group I + II (119±20 vs 108±21 ms, p=0.0417, 106±16 vs 95±21 ms, p=0.0258, respectively). During the follow-up of 40±21 months, AF recurrence was significantly higher in group IIIb than in groups IIIa and I + II (17/20 vs 5/14 vs 2/23 p
ISSN:1346-9843
1347-4820
DOI:10.1253/circj.67.485