Related Experiment Video
Updated: Feb 13, 2026

Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities
Published on: May 10, 2017
Irregularly irregular AVNRT misdiagnosed by smartwatch
Yaanik B Desai1, Nitish Badhwar1
1Stanford University School of Medicine, Department of Medicine, Division of Cardiovascular Medicine, Section of Arrhythmia & Cardiac Electrophysiology, United States.
Abstract:
A fifty-one-year-old woman presented with an irregularly irregular rhythm noted on a smartwatch. EP study revealed a narrow complex A-on-V tachycardia with significant cycle-length variability. Pacing maneuvers were consistent with atrioventricular nodal re-entry tachycardia (AVNRT), and we performed slow pathway modification. While AVNRT can have some degree of variability - particularly on warm up - the amount of irregularity here was striking, and much more than we have ever encountered or than has been previously reported in the literature.
More Related Videos
05:03Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
Published on: December 11, 2019
05:51Assessing the Accuracy of Fitness Smartwatch Data for Cardiovascular and Physical Activity Monitoring: A Validation Study in Digital Health
Published on: February 21, 2025
Related Concept Videos
Areas Within Irregular Boundaries
Additional Subnuclear Structures
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
Nonsense-mediated mRNA Decay
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Nuclear Export of mRNA