Affiliation:
1. Department of Cardiovascular Ultrasound CEMIC (Center for Medical Education and Clinical Research "Norberto Quirno") Buenos Aires Argentina
2. Department of Cardiology Ramos Mejia Hospital Buenos Aires Argentina
3. Master Ultrasound in Cardiology National University of La Plata La Plata Argentina
4. Department of Echocardiography Juan Fernandez Hospital Buenos Aires Argentina
Abstract
AbstractObjectiveDevice lead‐induced tricuspid regurgitation (LITR) mechanisms are well‐defined by 3D transthoracic echocardiography (3D‐TTE). There is a lack of data on the Latin‐American population. The objective of this study was to describe the prevalence of several mechanisms and insights in patients with permanent right ventricular (RV) implanted devices by 3D‐TTE examination.MethodsWe performed a cross‐sectional analysis of 101 patients with permanent cardiac devices such as pacemakers or defibrillators. 3D‐TTE was obtained on all patients in RV‐focused apical views to perform a complete tricuspid valve (TV) evaluation: leaflets, subvalvular apparatus, precise lead location, and functional assessment to evaluate possible mechanisms of tricuspid regurgitation (TR).ResultsIn a total of 101 patients, the leads did not interfere with TV function in 53 p. (59%), while LITR was observed in 38 (41%) patients. Adherent, impinging, entangled, and mixed lead‐induced mechanisms were observed. Time in years since device implantation was significantly higher in patients with LITR.ConclusionsLITR was present in a high proportion of our population. LITR is the result of damage to the TV as well as its subvalvular apparatus due to the fibrotic and inflammatory response over time when leads are situated in unfavorable locations.
Subject
Cardiology and Cardiovascular Medicine,Radiology, Nuclear Medicine and imaging