Long Term Evaluation of Cardiac Arrhythmias After Transcatheter Aortic Valve Implantation -The LOCATE Registry

Recruiting now

Conditions studied: Aortic Stenosis, Atrial Fibrillation New Onset, Heart Block

In brief

The purpose of the Long term Evaluation of Cardiac Arrhythmias after Transcatheter Aortic Valve Implantation (LOCATE) Registry is to perform long-term ambulatory monitoring of patients with severe aortic stenosis who undergo trans-catheter aortic valve implantation (TAVI) and develop new onset conduction system abnormalities post-procedure that do not require urgent permanent pacemaker (PPM) implantation. The primary objectives of this study are to assess the incidence of late onset heart block necessitating PPM implantation and to evaluate the incidence of new onset atrial fibrillation (AF) following TAVI. This study aims to provide valuable insights into the long-term cardiac health of TAVI patients and inform the development of improved treatment strategies for aortic stenosis patients with conduction system abnormalities.

Key facts

Study ID

NCT06055751

Run by

Kansas City Heart Rhythm Research Foundation

People needed

50

Starts

2023-09-22

Expected to finish

2025-12-01

Last updated by the study team

2024-10-16

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patients > 18 years of age with severe aortic stenosis that undergo TAVI for severe aortic stenosis that develop any one of the following conduction system abnormalities on the immediate post procedural or post operative ECG and have undergone ILR implantation for long-term monitoring of these conditions:
• New left bundle branch block (QRS >120ms)
• New first degree AV block (PR>200ms) or worsening of pre-existing first-degree AV block by >30ms
• New right bundle branch block (QRS>120ms)
• Intra-procedural 2:1 or higher-grade AV block with spontaneous improvement within 24 hours

You may not qualify if…

• Patients with high grade or complete AV block post TAVI needing urgent pacemakers
• Patient with existing cardiac implantable electronic devices (CIEDs)
• Patients having a particular medical condition that dictates that they cannot tolerate subcutaneous, chronically-inserted device
• Patient is currently pregnant as evidenced by urine positive Beta-HCG. (Urine Beta human chorionic gonadotropin (HCG) will be checked in all females of the reproductive age group).
• Patients not willing to sign the consent, lacks the capacity to sign the consent or revoke the consent after signing will be excluded

Where it is running

• Research Medical Center Clinic — Kansas City, Missouri, United States (enrolling)
• Research Medical Center — Kansas City, Missouri, United States (enrolling)

Full record on ClinicalTrials.gov

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