AF with Wolff-Parkinson-White syndrome. 12-lead ECG showing AF with preexcitation. There is an irregular, wide-complex tachycardia, with many QRS complexes showing a slurred upstroke (delta wave). At times, the ventricular rate can be as high as 300 bpm.
Reproduced with permission from: Nathanson LA, McClennen S, Safran C, Goldberger AL. ECG Wave-Maven: Self-Assessment Program for Students and Clinicians. Copyright © 2021 Beth Israel Deaconess Medical Center. Available at:
http://ecg.bidmc.harvard.edu (Accessed on August 2, 2021).
