Intramural Needle Ablation for Ablation of Recurrent Ventricular Tachycardia
The purpose of the study is to assess the effectiveness and safety of a new device called an Intramural Needle Ablation Catheter (INA catheter). The INA catheter is used for locating and ablating ventricular tachycardia that has failed standard radiofrequency ablation. This approach is desirable because some people have ventricular tachycardia that originates deep within the heart muscle where it is not abolished by ablation with standard catheters.
The investigators seek to determine whether the INA catheter can potentially help people who have ventricular tachycardia that has failed standard radiofrequency ablation. The investigators also want to determine if it is likely to be safe, without excessive side effects.
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Early Feasibility Study of Intramural Needle Ablation for Ablation of Recurrent Ventricular Tachycardia That Has Failed Conventional Radiofrequency Ablation|
- Control of Ventricular Tachycardia (VT) [ Time Frame: 6 months ] [ Designated as safety issue: No ]Freedom from hospitalization for recurrent Ventricular Tachycardia during the 6 months following ablation.
- Absence of all serious adverse events [ Time Frame: 30 days ] [ Designated as safety issue: Yes ]Absence of serious adverse events that are potentially device related and occur within 30 days of the ablation procedure
- Acute Procedural Success [ Time Frame: Absence of inducible clinical VT at then end of the ablation procedure. ] [ Designated as safety issue: No ]Defined as termination of at least one clinical or presumptive clinical monomorphic VT by Radiofrequency ablation and/or rendering that VT no longer inducible. It is recognized that this secondary efficacy endpoint will not be assessed in all patients because VT induction will not be attempted in patients in whom, in the judgment of the investigator, attempted VT induction imposes unwarranted risk of hemodynamic deterioration. A clinical or presumptive clinical VT is one that has been documented to occur spontaneously, or is within 20 ms in cycle length of a VT that has been documented to occur spontaneously.
|Study Start Date:||April 2013|
|Estimated Study Completion Date:||October 2015|
|Estimated Primary Completion Date:||October 2015 (Final data collection date for primary outcome measure)|
Experimental: Intramural Needle Catheter Ablation
Ablation of Ventricular Tachycardia with Intramural Needle Ablation Catheter
|Device: Intramural Needle Ablation Catheter|
|Contact: Christine P. Pellegrini, MSN/MHSAemail@example.com|
|United States, Massachusetts|
|Brigham and Women's Hospital||Not yet recruiting|
|Boston, Massachusetts, United States, 02115|
|Sub-Investigator: William G. Stevenson, M.D.|
|Principal Investigator: Roy John, M.D.|
|Study Director:||William G. Stevenson, M.D.||Brigham and Women's Hospital|
|Principal Investigator:||Roy John, M.D., Ph.D.||Brigham and Women's Hospital|