Abstract
The classic pattern of the typical WP's consists of (1) progressive lengthening of the P-R intervals with the largest increment occurring in the second conducted beat, (2) progressive decrease in P-R increment which accounts for the progressive shortening of successive R-R intervals, and (3) the pause produced by the nonconducted P-wave is less than two P-P intervals. In 45 patients with atrial pacing-induced Wenckebach periods of A-V conduction, the structure of these was studied with His bundle recordings. Of the 128 periods analyzed exceeding 3:2 A-V conduction ratios, 66 per cent were atypical. In 24 patients with spontaneous WP's of A-V coduction, the electrocardiographic records were studied. Of the 98 periods analyzed exceeding 3:2 A-V conduction ratios, 86 per cent were atypical. WP's with A-V conduction ratios greater than 6:5 were all atypical. Five categories of atypical WP's are described.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 26-31 |
| Number of pages | 6 |
| Journal | American heart journal |
| Volume | 89 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1975 |
Funding
Supported in part by National under the Myocardial Infarction Institutes, National Institute8 Education, and Welfare. Received for publication April Reprint requests: Dr. Kenneth sity of Illinois Hospital, P. 0.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine