Cyclic Bursts of Ventricular Premature Contractions of More than One Minute Intervals.

DOI Web Site PubMed 被引用文献3件 参考文献16件
  • TAKAYANAGI Kan
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • KAMISHIRADO Hirotoshi
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • IWASAKI Youichi
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • FUJITO Tsuneo
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • SAKAI Yoshihiko
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • INOUE Teruo
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • HAYASHI Terumi
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan
  • MOROOKA Shigenori
    Department of Cardiology, Dokkyo University Koshigaya Hospital, Koshigaya, Japan

この論文をさがす

抄録

Ventricular premature contractions (VPCs) occasionally appear successively in the form of bigeminy, trigeminy or quadrigeminy associated with quiescent periods. However, details of these rhythmic VPC bursts have not been well documented. We analyzed the incidence, periodicity and interval of VPC bursts exhibiting bigeminy or trigeminy using ambulatory ECG monitoring and computer analysis. We defined VPC bursts as more than 5 successive groups of VPCs each containing more than 20 VPCs in the form of bigeminy or trigeminy that were interrupted by normal sinus rhythm lasting for more than 60 seconds. Bursts thus defined were observed transiently or continuously in 78 out of 500 consecutive patients showing > 3000 VPCs a day. Their age ranged from 14 to 76 years (mean 48). Forty patients were men and 38 were women. We could discriminate between two types of bursts on the instantaneous heart rate tachograms. Dome type bursts(n=48) showed gradual shortening of the VPC coupling intervals whereas horizontal type bursts (n=30) demonstrated fixed coupling intervals during the bursts. Cycle length of the dome type burst was 185 ± 40 seconds and regular, whereas it was 210 ± 63 seconds and irregular in the horizontal type (NS). Duration of the VPC bursts was 101 ± 31 seconds in the dome type and 98 ± 41 seconds in the horizontal type. Both burst types were associated with transient increases in sinus rate and abbreviated VPC-VPC intervals. We suspect ventricular parasystole to be the mechanism of these bursts especially in the dome type. Recognition of these two burst types from heart rate tachograms may be of value in the suppression of VPCs.

収録刊行物

被引用文献 (3)*注記

もっと見る

参考文献 (16)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ