Abstract:
AIMS:The purpose of this study was to calculate the prevalence of ectopic atrial tachycardia in a population of young asymptomatic males and to assess its natural course both in asymptomatic subjects and in symptomatic hospital patients. METHODS AND RESULTS:12-lead electrocardiograms (ECG) of 3554 consecutive males applying for a pilot's licence were analysed. ECGs of symptomatic arrhythmia patients at two university hospitals were also analysed. A repeat ECG was taken in cases of ectopic atrial tachycardia to assess the natural course of this arrhythmia. Twelve out of 3554 asymptomatic subjects (prevalence 0.34%) and 17 out of 3700 symptomatic arrhythmia patients (prevalence 0.46%) had ECG evidence of ectopic atrial tachycardia. A repeat ECG was obtained after a mean follow-up of 8+/-3 years in asymptomatic subjects and 7+/-3 years in symptomatic patients. After the follow-up, seven (26%) out of 27 patients were still in a similar ectopic atrial rhythm, 10 (37%) showed a change in P wave morphology and 10 (37%) were in sinus rhythm. Heart rate was significantly slower (mean rate 81+/-19 vs 109+/-17 beats. min-1) in the repeat ECGs. CONCLUSION:Asymptomatic ectopic atrial tachycardia is not an uncommon finding in a population of young males. The majority of patients show slowing of heart rate in the course of time, either with restoration of sinus rhythm or with a change in P wave morphology, suggesting that the ectopic foci undergo gradual degeneration with time.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Poutiainen AM,Koistinen MJ,Airaksinen KE,Hartikainen EK,Kettunen RV,Karjalainen JE,Huikuri HVdoi
10.1053/euhj.1998.1313subject
Has Abstractpub_date
1999-05-01 00:00:00pages
694-700issue
9eissn
0195-668Xissn
1522-9645pii
S0195668X98913136journal_volume
20pub_type
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journal_title:European heart journal
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更新日期:1993-09-01 00:00:00
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更新日期:2016-04-01 00:00:00
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更新日期:2001-12-01 00:00:00
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