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Catheter Evaluation for Endocardial Ablation in Patients With Ventricular Tachycardia

2014-07-23 21:34:27 | BioPortfolio

Summary

The primary objective is to provide additional corroborative safety and efficacy data for the Navistar ThermoCool catheter for the treatment of subjects with ischemic Ventricular Tachycardia.

Description

This study is a prospective, non-randomized, single-arm, multi-center condition of approval evaluation. The device is currently FDA approved for commercial distribution. Subjects with ischemic ventricular tachycardia will be considered for the condition of approval study. This study will be conducted at up to 30 centers in a minimum of 249 evaluable subjects.

Study Design

Allocation: Non-Randomized, Control: Historical Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Ventricular Tachycardia

Intervention

NAVISTAR® THERMOCOOL® Catheter

Location

University of Alabama, Birmingham
Birmingham
Alabama
United States
35294

Status

Recruiting

Source

Biosense Webster, Inc.

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:34:27-0400

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Outcomes with Prophylactic Use of Percutaneous Left Ventricular Assist Devices in High-Risk Patients Undergoing Catheter Ablation of Scar-Related VT: a Propensity-Matched Analysis.

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Medical and Biotech [MESH] Definitions

Implantable devices which continuously monitor the electrical activity of the heart and automatically detect and terminate ventricular tachycardia (TACHYCARDIA, VENTRICULAR) and VENTRICULAR FIBRILLATION. They consist of an impulse generator, batteries, and electrodes.

An abnormally rapid ventricular rhythm usually in excess of 150 beats per minute. It is generated within the ventricle below the BUNDLE OF HIS, either as autonomic impulse formation or reentrant impulse conduction. Depending on the etiology, onset of ventricular tachycardia can be paroxysmal (sudden) or nonparoxysmal, its wide QRS complexes can be uniform or polymorphic, and the ventricular beating may be independent of the atrial beating (AV dissociation).

A malignant form of polymorphic ventricular tachycardia that is characterized by HEART RATE between 200 and 250 beats per minute, and QRS complexes with changing amplitude and twisting of the points. The term also describes the syndrome of tachycardia with prolonged ventricular repolarization, long QT intervals exceeding 500 milliseconds or BRADYCARDIA. Torsades de pointes may be self-limited or may progress to VENTRICULAR FIBRILLATION.

Cardiac electrical stimulators that apply brief high-voltage electroshocks to the HEART. These stimulators are used to restore normal rhythm and contractile function in hearts of patients who are experiencing VENTRICULAR FIBRILLATION or ventricular tachycardia (TACHYCARDIA, VENTRICULAR) that is not accompanied by a palpable PULSE. Some defibrillators may also be used to correct certain noncritical dysrhythmias (called synchronized defibrillation or CARDIOVERSION), using relatively low-level discharges synchronized to the patient's ECG waveform. (UMDNS, 2003)

A potentially lethal cardiac arrhythmia characterized by an extremely rapid, hemodynamically unstable ventricular tachycardia (150-300 beats/min) with a large oscillating sine-wave appearance. If untreated, ventricular flutter typically progresses to VENTRICULAR FIBRILLATION.

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