Welch Allyn Cardioperfect Workstation, PEDMEANS ECG Interpretation Module - Physicians - User Manual - Manual (Page 11)

CardioPerfect Workstation
PEDMEANS ECG Interpretation Module Physicians Manual
DIR 80015051 Rev. C 11 / 55
2.2 Wolf-Parkinson-White syndrome (WPW)
Due to the anomalous conduction pathway (Kent bundle), the corresponding ventricle is depolarized at
a slower rate through the ventricular myocardium. This produces initial slurring (delta wave), a short
PR interval and wide QRS complex. The presence of delta waves in two or more leads is a necessary
condition for the diagnosis of WPW. Only if delta waves are found in two or more leads, together with
a short PR interval or a wide QRS complex, a definite diagnosis of WPW is made.
Say: “WPW”
if: delta wave in at least 2 leads
and PR interval > ULN
or QRS duration > ULN
Say:
“possible WPW”
if: delta wave in at least 2 leads
If the test WPW passed, no further contour analysis is performed.