Electrocardiographic Mapping and Imaging

The purpose of this study is to evaluate a novel non-invasive cardiac electric imaging methodology for localizing and imaging cardiac electrical activity from body surface electrocardiographic recordings in patients with ventricular tachycardia (VT). Using non-invasive means will increase our ability to correctly diagnose cardiac abnormalities, and aid ablation of cardiac arrhythmias, offering enhanced performance to what currently exists.

Study Overview

• Status: Withdrawn
• Conditions: Cardiac Arrhythmia
• Intervention / Treatment: Procedure: ECG electrodes

Detailed Description

Specific Aims

1. Use non-invasive cardiac electric imaging to provide information as to the sites of origin of arrhythmias and sequence of cardiac activation and repolarization.

Methods and Procedures Approximately 8 patients with recorded Premature Ventricular Contractions (PVC), Wolff-Parkinson-White (WPW) or other ventricular tachycardia cases which need Ensite/Carto endocardial mapping and radiofrequency ablation treatment will be enrolled.

One day before catheterization and ablation, patients will undergo approximately 30 minutes of Body Surface Potential Mapping (BSPM) recordings with about 200 surface electrodes arranged in 20 strips, attached on his/her front and back. BSPMs will be recorded in the baseline resting rhythm.

On the day of ablation, before catheterization in the surgical room, the BSPM recording procedure will be carried out with the patient using the same technique used during the first BSPM study.

Clinical endocardial mapping data may also be obtained concurrently with BSPM recordings before the ablation procedure.

Another BSPM recording will be made 30-60 minutes after successful ablation with the patient still in normal sinus rhythm if possible. Patients will be followed up 1 month after ablation with the same method of BSPM recorded at the baseline resting rhythm.

• Study Type: Interventional
• Phase: Early Phase 1

Contacts and Locations

Study Locations

• United States
  • Minnesota
    • Rochester, Minnesota, United States, 55905
      • Mayo Clinic in Rochester

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Any patient undergoing ablation.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: Single

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: ECG Mapping	Procedure: ECG electrodes; Cardiac mapping of patients before and after ablation to develop future treatment/diagnostic options for cardiac patients.; Other Names: Electrode strips; Electrode patches

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Results of ECG Mapping	Accuracy of the system to estimate site of arrhythmia origin, and frequency of obtaining ecg signals	1 year

Collaborators and Investigators

• Sponsor: Mayo Clinic
• Collaborators: University of Minnesota
• Investigators: Principal Investigator: Samuel Asirvatham, MD, Mayo Clinic

Study record dates

Study Major Dates

• Study Start: October 1, 2013
• Primary Completion (Actual): October 1, 2013
• Study Completion (Actual): October 1, 2013

Study Registration Dates

• First Submitted: July 7, 2011
• First Submitted That Met QC Criteria: July 14, 2011
• First Posted (Estimate): July 15, 2011

Study Record Updates

• Last Update Posted (Estimate): October 21, 2013
• Last Update Submitted That Met QC Criteria: October 18, 2013
• Last Verified: October 1, 2013

More Information

Terms related to this study

• Keywords: ECG; Mapping; arrythmias; ecg mapping
• Additional Relevant MeSH Terms: Pathologic Processes; Heart Diseases; Cardiovascular Diseases; Arrhythmias, Cardiac
• Other Study ID Numbers: 10-004825