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Premature ventricular contractions of the right ventricular outflow tract: is there an incipient underlying disease? New insights from a speckle tracking echocardiography study.
Fonseca, Marta; Parreira, Leonor; Farinha, José Maria; Marinheiro, Rita; Esteves, Ana; Gonçalves, Sara; Caria, Rui.
Afiliación
  • Fonseca M; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: ms.ferreira.fonseca@gmail.com.
  • Parreira L; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: leonor.parreira@gmail.com.
  • Farinha JM; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: jfarinha@campus.ul.pt.
  • Marinheiro R; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: ritamarinheiro@gmail.com.
  • Esteves A; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: esteves.anafatima@gmail.com.
  • Gonçalves S; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: sara.soares.goncalves@gmail.com.
  • Caria R; Centro Hospitalar de Setúbal, Cardiology Department, Setúbal, Portugal. Electronic address: rui.caria@gmail.com.
Indian Pacing Electrophysiol J ; 21(3): 147-152, 2021.
Article en En | MEDLINE | ID: mdl-33607220
CONTEXT: Premature ventricular contractions (PVCs) originating in the right ventricular outflow tract (RVOT) are traditionally considered idiopathic and benign. Echocardiographic conventional measurements are typically normal. AIMS: To assess whether right ventricle longitudinal strain, determined by two-dimensional speckle tracking echocardiography, differ between RVOT PVCs patients (treated with catheter ablation) and healthy controls. METHODS: We retrospectively selected patients with PVCs from the RVOT who underwent electrophysiological study and catheter ablation between 2016 and 2019. Patients with documented structural heart disease were excluded. Transthoracic echocardiography was performed and right ventricle global longitudinal strain (RV-GLS), free wall longitudinal strain (RVFW-LS) and left ventricle global longitudinal strain (LV-GLS) were determined as well as conventional ultrasound measurements of RV and LV function. RESULTS: We studied 21 patients with RVOT PVCs and 13 controls. Patients with PVCs from the RVOT had lower values of RV-GLS and RVFW-LS compared with the control group (-19.4% versus -22.5%, P = 0.015 and -22.1% versus -25.5, P = 0.041, respectively). They also had lower values of LV-GLS, although still within the normal range (-19.1% versus -20.9%, P = 0.047). Regarding RVOT PVCs patients only, RV-GLS and RVFW-LS had no correlation with the PVCs burden prior to catheter ablation and they did not differ between the patients in whom the catheter ablation was successful and those in whom it was not. RV-GLS also had a positive correlation with RVOT proximal diameter (r = 0.487, P = 0.025). CONCLUSIONS: In this group of RVOT PVCs patients, we found worse RV longitudinal strain values (and therefore sub-clinical myocardial dysfunction) when compared to healthy controls.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Indian Pacing Electrophysiol J Año: 2021 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Indian Pacing Electrophysiol J Año: 2021 Tipo del documento: Article Pais de publicación: Países Bajos