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ECG for Programming in CRT

NCT03936608 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 4

Last updated 2020-12-03

Study results available
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Summary

Patients with heart failure and left bundle branch block benefit from Cardiac Resynchronization Therapy (CRT) that delivers pacing from right ventricle (RV) and left ventricle (LV) synchronously, resulting in electrical ventricular resynchrony followed by revere structural cardiac remodeling and thereby reduced heart failure symptoms, hospitalizations and death. It is not known if programming an individually optimized RV-LV pacing offset to maximize electrical resynchrony can improve benefit from CRT.

The proposed study is a randomized controlled trial in patients undergoing implant of a CRT pacemaker/defibrillator device for clinical indications to evaluate benefit of RV-LV offset programming using electrocardiogram (ECG) vs. standard nominal CRT programming without RV-LV offset. Patients receiving CRT devices will be randomized to either (A) active intervention of programming RV-LV pacing offset to optimize ECG or to (B) active control of nominally programming CRT device without RV- LV offset. The patients will be followed to evaluate change in echocardiogram, quality of life, functional evaluation and a blood marker for heart failure.

Conditions

  • Systolic Heart Failure
  • Cardiac Resynchronization Therapy
  • Electrocardiography

Interventions

DEVICE

Programming individualized RV-LV pacing offset to optimize ECG

After CRT device implant, participants will undergo physiologic evaluations at various (up to 10 or more) RV-LV offset settings including ECGs. The RV-LV offset that optimizes the paced QRS morphology on ECG will be programmed.

DEVICE

Nominally programming CRT device without RV-LV offset

After CRT device implant, participants will undergo physiologic evaluations at various (up to 10 or more) RV-LV offset settings including ECGs. Nominal standard-of-care CRT programming with no RV-LV offset will be programmed.

Sponsors & Collaborators

  • Washington University School of Medicine

    lead OTHER

Principal Investigators

  • Amit Noheria, MBBS, SM · Washington University School of Medicine

  • Sandeep Sodhi, MD · Washington University School of Medicine

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-04-22
Primary Completion
2019-11-21
Completion
2019-11-21
FDA Device
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03936608 on ClinicalTrials.gov