NCT04004624

Physiologically Guided VT Ablation

Physiologically Guided Ablation of Reentry-Vulnerable-Zones for the Treatment of Post-Infarction Ventricular Tachycardia

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 80 (estimated)
• Sponsor: Center for Cardiovascular Reseach and Innovation · Industry
• Sex: All
• Age: 19 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to determine the efficacy of VT ablation guided by functional evaluation of the substrate to specifically target the reentry-vulnerable zones in patients with infarct-related VT.

Detailed description

Activation mapping of VT is the gold-standard method for description of the reentrant circuit and identification of its isthmus, however this is uncommonly accomplished due to hemodynamic non-tolerance and limited temporal and spatial resolution. Substrate mapping has been developed as an alternative method to identify the isthmus of post-infarction VT during sinus rhythm (SR). However, it has limited specificity to critical VT sites. Fundamental work in animal models of healed infarction and humans has shown that the VT isthmus corresponds to locations characterized by marked activation slowing during SR. Furthermore, these locations serve as "anchors" for multiple VT morphologies and cycle lengths. The hypothesis of this study is that activation mapping during SR or pacing can improve the specifically for identifying the critical VT sites. The aim of this prospective, multi-center controlled study is to evaluate the utility and limitations of functional mapping for guiding ablation of reentry vulnerably zones for long-term control of VT

Conditions

• Ventricular Tachycardia

Interventions

Type	Name	Description
DEVICE	Ablation	Cardiac Ablation

Timeline

• Start date: 2014-10-12
• Primary completion: 2019-09-16
• Completion: 2020-01-01
• First posted: 2019-07-02
• Last updated: 2019-07-02

Regulatory

• FDA-regulated device study