The Impact of Right Ventricular Pacing on Tricuspid Regurgitation

Clalit Health Services

Status: Unknown

Conditions: Tricuspid Regurgitation

Study type: Observational

Funder types: Other

Identifiers

NCT00419354

4134

Details and patient eligibility

About

"1" To examine whether right ventricular pacing has an impact on tricuspid regurgitation grade that is related to pacing rather than to valve closure interference by the electrode.

Full description

"1" Traditionally, tricuspid regurgitation in the presence of pacemaker is attributed to the physical interference of the valve closure by the electrode.

"2" Right ventricular pacing may be associated with dyssynchrony in contraction of the right ventricular wall (i.e. septum and free wall.

"3" The tricuspid sub-valvar apparatus is anchored to the septum and free wall, thus may be sensitive to dyssynchrony in those wals contraction.

"4" The study hypothesis is that the dyssynchrony in right ventricular contraction, induced by pacing, may increase tricuspid regurgitation grade and that this is a mechanism is independent of the mechanical effect of the electrode on the valve closure.

Enrollment: 50 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age >18 years
• Permanent pacemaker

Exclusion criteria

• Epicardial pacing
• Left ventricular dysfunction
• Organic tricuspid regurgitation
• Bi-ventricular pacemaker
• Atrial fibrillation
• Complete pacemaker dependence