Ventricular pre-excitation
MSP221 recording · 09
Clinical history not documented in this image source.
Original waveform retained; quiz cropping only removes off-tracing interpretation or a row containing an answer label. Some sources are rhythm strips rather than a full 12-lead ECG.
Look for
- Short PR interval.
- Slurred QRS onset: delta wave.
Where to look. Inspect QRS onset and PR intervals across leads: a slurred initial delta wave.
An accessory pathway activates part of the ventricle early. The ECG pattern alone does not establish symptomatic Wolff–Parkinson–White syndrome.
The source diagnosis is retained; no additional clinical cause is inferred.
References & provenance
John Hampton; Joanna Hampton. The ECG Made Easy, 9th ed. (2019), ch. 4, pages du PDF / PDF pp. 115-117.
12 lead ECG demonstrating WPW. Note the characteristic delta wave and short PR interval.
James Heilman, MD. 12 lead ECG demonstrating WPW. Note the characteristic delta wave and short PR interval.. https://commons.wikimedia.org/wiki/File:WPW09.JPG. CC BY-SA 3.0. Adaptation: lossless metadata removal/encoding; quiz crop removes off-tracing labels/interpretive panels where applicable. Derivative image retains the same license. CC BY-SA 3.0
Adaptation: cropping and removal of headers/annotations outside the tracing where applicable; metadata removed. Waveforms have not been redrawn.
Compared with the published source; no independent clinical validation is claimed.
Original annotations & limitations
12 lead ECG demonstrating WPW. Note the characteristic delta wave and short PR interval.
12 lead ECG demonstrating WPW. Note the characteristic delta wave and short PR interval.
Original source labels retained. Question wording limited to visible findings; no independent clinical validation claimed.