Related Experiment Video
Updated: Feb 10, 2026

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars
Published on: February 11, 2020
Reentrant atrial tachycardia originating from the sinus venosa region
Ryo Sasaki1, Hisashi Yokoshiki2, Yuki Chiba1
1Division of Medical Engineering Center, Hokkaido University Hospital, Japan.
Abstract:
A 78-year old woman with palpitation exhibited an atrial tachycardia (AT) of variable cycle lengths resembling atrial fibrillation (AF). Vague centrifugal activation was noted at the sinus venosa region where overdrive pacing demonstrated entrainment with concealed fusion and the stimulus to P wave approximated the electrogram to the P wave interval of 125ms. Application of radiofrequency energy to this site resulted in termination of the AT as well as formation of a fixed block line manifested by the presence of discrete double potentials. These observations indicated the reentrant mechanism of AT originating from the sinus venosa region.
Related Concept Videos
IR Frequency Region: Fingerprint Region
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
The Eukaryotic Promoter Region
Region of Convergence
Regional Terms
Primarily, the human body has two major regions, the axial and appendicular regions. The axial region comprises regions from the head to the abdomen and makes up the central body axis. In contrast,...
Cancers Originate from Somatic Mutations in a Single Cell

