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Completed

NCT Number: NCT05646251

Intra-procedural Transthoracic EChocardiogram to Facilitate Left Bundle Branch Area Pacing (LBBAP)

The goal of this observational study is to learn more about whether or not the use of heart ultrasound during pacemaker implantation is helpful. The main questions this aims to answer are:

1. Does this help the doctors with figuring out the wire location during implantation? 2. Does this reduce the wire placement procedure time? 3. Does this reduce the x-ray imaging time during the procedure?

Participants will be asked to:

1. Have a physical exam and Echocardiogram (ECG) at initial visit, 2 weeks post implant, and 3 months post implant. 2. Have a urine pregnancy test (if applicable) 3. Have a heart ultrasound during implant procedure 4. Answer questions related to heart failure symptoms to see what stage of heart failure is present 5. Have device interrogation (a wand placed over the chest to see that the device is working properly) at a visit 2 weeks post implant and at 3 months post implant.

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Key information

Conditions

Heart Failure Cardiovascular Diseases Heart Diseases

Age range

18 year–89 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Geisinger Clinic

Wilkes-Barre, Pennsylvania, 18711, United States

About this study

The EC-LBBAP study is a prospective, single-enter, observational research study. The study team will identify all patients who satisfy the inclusion and exclusion criteria. The study team will evaluate the feasibility and success rates of echocardiogram guided LBBAP lead implantation.

Eligible patients will undergo LBBAP using Medtronic 3830 lead and C315His sheath. LBBAP will be confirmed at implant using left bundle potentials recorded from the lead, ECG morphology during unipolar and bipolar pacing, peak Left Ventricular Pacing (LV) activation time and lead depth in the 2D transthoracic echo at implant.

During implant procedure, transthoracic echo windows will be identified and documented: Parasternal short and long axis, apical 2 and 4 chamber views and subcostal views to visualize the proximal interventricular septum. Following venous access using cephalic vein cut-down or ultrasound guided axillary vein access, the lead implantation in the left bundle branch region will be guided by echocardiography.

Retrospectively, the study team will identify 20 consecutive previous patients who satisfy inclusion and exclusion criteria (control patients). Twenty patients will undergo intraprocedural transthoracic echocardiogram via standard practices. An additional 10 patients will undergo intraprocedural transthoracic echocardiogram using a hand-held ultrasound device. The study team will compare the difference in procedural success between case and control patients.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • patient with indication for permanent pacemaker or Implantable Cardioverter Defibrillator (ICD) utilizing conduction system pacing lead for bradycardia or cardiac resynchronization therapy
  • patient is willing to comply with all study procedures and be available for the duration of the study

Exclusion criteria

  • Inability to provide informed consent
  • pregnant
  • enrolled in a concurrent study that may confound the results of this study

Treatment and study plan

Heart Ultrasound

Device

A wand is placed on the chest to use soundwaves to make a picture of the heart and shows how the muscle and valves work. This helps with device placement.

Primary outcomes

  1. A Positive Success Rate of LBBAP Utilization With Intraprocedural Transthoracic Echocardiogram

    Time frame: Perioperative, through study completion, an average of 3 months

    Positive success rate of LBBAP is measured by Left bundle branch capture for participants, measured during implant

  2. Difference of Fluoroscopy/Procedure Duration Between Groups

    Time frame: Perioperative

    Difference in fluoroscopy and procedure duration using echo guided LBBAP lead implantation compared to control data for standard LBBAP lead implantation

  3. Number of Participants Determined to be Eligible for the Work-flow and Echocardiographic Procedures

    Time frame: Through study completion, an average of 3 months

    This measure is to determine if the workflow is feasible in regular practice (echo tech availability, lab availability, duration of comparative procedures) between intervention group and controls, and to determine if the identifying echocardiographic windows is able to be performed pre operatively on all intervention patients

    This measure is to determine the number of participants that the workflow is feasible for and could be performed on in regular practice (echo tech availability, lab availability, duration of comparative procedures)

Sponsors and collaborators

Lead sponsor

Geisinger Clinic

Other

Collaborators

  • Medtronic

Registry information

Official study title

Intra-procedural Transthoracic EChocardiogram to Facilitate LBBAP

Acronym: EC-LBBAP

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Dec 12, 2022
Registry last updated
Oct 1, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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