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Related Concept Videos

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

153
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
153
Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

199
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
199
Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

146
Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
146
Cardiac Catheterization IV: Nursing Management01:26

Cardiac Catheterization IV: Nursing Management

182
Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
182

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Related Experiment Video

Updated: Sep 6, 2025

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
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Initial Clinical Experience With a Novel 8-Spline High-Resolution Mapping Catheter.

Johannes Steinfurt1, Pietro Bernardo Dall'Aglio1, Jannik Hugenschmidt1

  • 1Department of Cardiology and Angiology, University Heart Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

JACC. Clinical Electrophysiology
|July 2, 2022
PubMed
Summary

The novel Octaray catheter offers safe and efficient high-resolution electroanatomical mapping for cardiac arrhythmias. It significantly improves mapping speed and data density compared to the 5-spline Pentaray catheter.

Keywords:
3D mapping8-spline catheterOctarayhigh densityhigh resolutionmultielectrode

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Area of Science:

  • Cardiac Electrophysiology
  • Medical Device Technology
  • Catheter Ablation

Background:

  • The Octaray is a new multispline mapping catheter featuring 48 microelectrodes for high-resolution electroanatomical mapping.
  • This technology aims to enhance the precision and efficiency of mapping cardiac arrhythmias.

Purpose of the Study:

  • To evaluate the initial clinical experience with the Octaray catheter in various cardiac arrhythmias.
  • To compare the mapping performance of the Octaray catheter against the 5-spline Pentaray catheter.

Main Methods:

  • Retrospective analysis of 50 consecutive procedures in 46 patients.
  • Assessment of safety, efficacy, and acute procedural success.
  • Comparative analysis of mapping data (electrograms per map, mapping time, point density, acquisition rate) in 10 patients with sustained atrial tachycardia.

Main Results:

  • Left atrial and ventricular mapping was safely performed using transseptal or retroaortic access with the Octaray catheter.
  • The acute procedural success rate was 94%.
  • In sustained atrial tachycardia, the Octaray catheter showed significantly higher electrogram counts, point density, and acquisition rate in a shorter time compared to the 5-spline catheter.

Conclusions:

  • Initial experience indicates that the Octaray catheter is safe and efficient for high-resolution electroanatomical mapping.
  • The Octaray catheter demonstrated superior mapping speed and data density compared to the 5-spline catheter in sustained atrial tachycardia.
  • Further validation in larger, multicenter studies with longer follow-up is recommended.