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Tricuspid Regurgitation Study

2014-07-23 21:09:44 | BioPortfolio

Summary

The effect of cardiac pacing leads on tricuspid regurgitation is unclear. This study will determine whether using a smaller diameter leads and an alternate position in the ventricle, the proximal septum, will reduce tricuspid regurgitation than larger leads placed in the apex.

Description

Leads are commonly placed in the right ventricular apex. It is not known whether placing similar leads higher on the septum where there will be less redundancy or pressure on the septal leaflet will change the extent and severity of tricuspid regurgitation following pacemaker/ICD implantation. Data has shown that right ventricular pacing can give rise to right ventricular dysfunction, which in turn may give rise to enlargement of the right ventricle and cause tricuspid regurgitation.

The study will answer the clinically relevant questions on device lead-related tricuspid regurgitation.

This study is a single center prospective study at the Mayo Clinic, Rochester. The study will enroll 200 eligible subjects and follow for 12 months. 50 pacemaker subjects will be randomized to right ventricular apex pacing 50 pacemaker subjects will be randomized to right ventricular septum pacing 50 pacemaker subjects will be randomized to left ventricular pacing via coronary sinus 50 ICD subjects will be enrolled with right ventricular apex pacing.

A baseline heart failure assessment and Two Dimensional echocardiography will be performed before device implant.

A Two Dimensional echo will be performed 24 hours after device implant. If significance TR is present a Three Dimensional echo will be performed. At 12 months post implant heart failure assessment and Two Dimensional echo will be performed.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Tricuspid Regurgitation

Intervention

Echo, Echo, Echo, Echo

Location

Mayo Clinic
Rochester
Minnesota
United States
55905

Status

Recruiting

Source

Mayo Clinic

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:09:44-0400

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A type of MAGNETIC RESONANCE IMAGING that uses only one nuclear spin excitation per image and therefore can obtain images in a fraction of a second rather than the minutes required in traditional MRI techniques. It is used in a variety of medical and scientific applications.

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The pathologic narrowing of the orifice of the TRICUSPID VALVE. This hinders the emptying of RIGHT ATRIUM leading to elevated right atrial pressure and systemic venous congestion. Tricuspid valve stenosis is almost always due to RHEUMATIC FEVER.

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