Left Bundle Branch Block (LBBB) After IntuityTM

May 28, 2021 updated by: Assistance Publique Hopitaux De Marseille

Persistent Left Bundle Branch Block After Rapid-Deployment Aortic Valve Replacement: Incidence, Long-term Prognostic and Predictive Factors

This study aimed to evaluate incidence, prognosis and predictive factors of new-onset of persistent left bundle branch block (LBBB) after rapid-deployment aortic valve replacement (RD-AVR) with the IntuityTM bioprosthesis.

It was an observational, retrospective and single-center study. Two hundred and seventy-four consecutive patients without any baseline ventricular conduction disorder or previous permanent pacemaker or defibrillator implantation who underwent RD-AVR with the IntuityTM valve were included. Twelve-lead electrocardiogram and transthoracic echocardiography were performed preoperatively, postoperatively, at discharge, 1-month, and 1-year. Incidence, prognosis and predictive factors of new-onset of persistent LBBB were evaluated.

Study Overview

Status

Completed

Conditions

Aortic Valve Disease

Study Type

Observational

Enrollment (Actual)

274

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

France
- - Marseille, France, 13005
    - Assistance Publique Hôpitaux de Marseille

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Two hundred and seventy-four consecutive patients without any baseline ventricular conduction disorder or previous permanent pacemaker or defibrillator implantation who underwent rapid-deployment aortic valve replacement (RD-AVR) with the IntuityTM valve were included. Twelve-lead electrocardiogram and transthoracic echocardiography were performed preoperatively, postoperatively, at discharge, 1-month, and 1-year.

Description

Inclusion Criteria:

rapid-deployment aortic valve replacement (RD-AVR) with the Edwards Intuity™ bioprosthesis for severe aortic valve stenosis
between July 2012 and May 2018

Exclusion Criteria:

preoperative permanent pacemaker or defibrillator,
complete intraventricular conductive disorder defined by a QRS width ≥ 120 ms.
absence of patient's authorization for anonymous publication of their clinical data for research purposes.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of NOP-LBBB (new onset of persistent left bundle branch block) Time Frame: at 1 year	QRS duration ≥ 120 ms with QS or rS patterns on the V1 lead, a large notched R wave in D1, aVL, V5 and V6 and the absence of Q wave in V5 and V6, according to the recommendations of the American Heart Association. NOP-LBBB was persistence of LBBB on the 12-lead recording electrocardiogram (ECG) at discharge from hospital.	at 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Assistance Publique Hopitaux De Marseille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2021

Primary Completion (Actual)

April 1, 2021

Study Completion (Actual)

May 1, 2021

Study Registration Dates

First Submitted

May 18, 2021

First Submitted That Met QC Criteria