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Related Concept Videos

Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

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...
Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

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...

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Related Experiment Video

Updated: Jun 18, 2026

Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter
08:00

Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter

Published on: June 15, 2015

Initial experience using a radiofrequency powered transseptal needle.

Matthew P Smelley1, Dipak P Shah, Ian Weisberg

  • 1Section of Cardiology, Department of Internal Medicine, University of Chicago, Chicago, Illinois, USA.

Journal of Cardiovascular Electrophysiology
|November 21, 2009
PubMed
Summary
This summary is machine-generated.

A novel radiofrequency (RF) powered transseptal needle safely and effectively performs transseptal puncture (TSP) with minimal force, even in patients with prior procedures. Further research is needed for routine use.

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

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Published on: February 26, 2013

Area of Science:

  • Cardiovascular Interventions
  • Medical Device Technology

Background:

  • Transseptal puncture (TSP) is a critical step in left-sided catheter ablation procedures.
  • Traditional TSP methods can require significant mechanical force.

Purpose of the Study:

  • To evaluate the safety and efficacy of a novel radiofrequency (RF) powered transseptal needle for performing TSP.
  • To assess the feasibility of using RF energy to facilitate TSP.

Main Methods:

  • TSP was performed in 35 patients undergoing left-sided catheter ablation using an RF powered transseptal needle.
  • RF energy (10 W for 2 seconds) was applied to the needle tip during gentle pressure.
  • Patient characteristics included a mean age of 51 years, with 71% males; 34% had prior TSP.

Main Results:

  • Successful TSP was achieved in 35 of 36 punctures using the RF powered needle after RF energy delivery.
  • One TSP was unsuccessful with the powered needle but successful with a standard needle.
  • The primary complication was a transient right atrial thrombus in 2 patients.

Conclusions:

  • The RF powered transseptal needle enables safe and successful TSP without substantial mechanical force.
  • This technology shows promise, particularly for patients with prior transseptal puncture history.
  • Additional studies are warranted to establish routine clinical use.