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Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing

BACKGROUND: Our study aimed to demonstrate the short-term impacts of right ventricular apical pacing (RVAP) and right ventricular septal pacing (RVSP) on left ventricular (LV) regional longitudinal strain (RLS) and global longitudinal strain (GLS) in patients with preserved ejection fraction (EF). L...

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Autores principales: Algazzar, Alaa Solaiman, Katta, Azza Ali, Ahmed, Khaled Sayed, Elkenany, Nasima Mohamed, Ibrahim, Maher Abdelaleem
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elmer Press 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5295530/
https://www.ncbi.nlm.nih.gov/pubmed/28197264
http://dx.doi.org/10.14740/cr454w
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author Algazzar, Alaa Solaiman
Katta, Azza Ali
Ahmed, Khaled Sayed
Elkenany, Nasima Mohamed
Ibrahim, Maher Abdelaleem
author_facet Algazzar, Alaa Solaiman
Katta, Azza Ali
Ahmed, Khaled Sayed
Elkenany, Nasima Mohamed
Ibrahim, Maher Abdelaleem
author_sort Algazzar, Alaa Solaiman
collection PubMed
description BACKGROUND: Our study aimed to demonstrate the short-term impacts of right ventricular apical pacing (RVAP) and right ventricular septal pacing (RVSP) on left ventricular (LV) regional longitudinal strain (RLS) and global longitudinal strain (GLS) in patients with preserved ejection fraction (EF). LV strain and functions may be altered by RVAP. RVSP might be a better alternative. The detrimental effect of right ventricular (RV) pacing may be mediated by regional LV impairment. METHODS: Sixty-two patients indicated for permanent pacemaker implantation and preserved LV systolic function were included. Dual chamber pacemakers were implanted in all patients. Patients were divided into two groups according to RV lead position: group A (RVAP, n = 32) and group B (RVSP, n = 30). Patients were examined at baseline and after 6 months of implantation for LV systolic functions, global and regional strain by echocardiography and 2D speckle tracking echocardiography. RESULTS: Paced QRS duration was significantly shorter in group B compared to group A patients (P = 0.02). Regarding ventricular strain, there was no statistically significant difference between both groups at baseline measurements in comparisons of GLS, relative apical longitudinal strain (rALS) and RLS (P > 0.05). In contrast, there was statistically significant difference between both groups in results of GLS (P = 0.01) at 6 months. In addition, RLSs in septal, apical and rALS were affected after 6 months with P values of 0.02, 0.03 and 0.03, respectively. CONCLUSION: RVAP appears to worsen GLS more than RVSP, and the resultant decrease in apical strain is most correlated region to decrease in GLS.
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spelling pubmed-52955302017-02-14 Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing Algazzar, Alaa Solaiman Katta, Azza Ali Ahmed, Khaled Sayed Elkenany, Nasima Mohamed Ibrahim, Maher Abdelaleem Cardiol Res Original Article BACKGROUND: Our study aimed to demonstrate the short-term impacts of right ventricular apical pacing (RVAP) and right ventricular septal pacing (RVSP) on left ventricular (LV) regional longitudinal strain (RLS) and global longitudinal strain (GLS) in patients with preserved ejection fraction (EF). LV strain and functions may be altered by RVAP. RVSP might be a better alternative. The detrimental effect of right ventricular (RV) pacing may be mediated by regional LV impairment. METHODS: Sixty-two patients indicated for permanent pacemaker implantation and preserved LV systolic function were included. Dual chamber pacemakers were implanted in all patients. Patients were divided into two groups according to RV lead position: group A (RVAP, n = 32) and group B (RVSP, n = 30). Patients were examined at baseline and after 6 months of implantation for LV systolic functions, global and regional strain by echocardiography and 2D speckle tracking echocardiography. RESULTS: Paced QRS duration was significantly shorter in group B compared to group A patients (P = 0.02). Regarding ventricular strain, there was no statistically significant difference between both groups at baseline measurements in comparisons of GLS, relative apical longitudinal strain (rALS) and RLS (P > 0.05). In contrast, there was statistically significant difference between both groups in results of GLS (P = 0.01) at 6 months. In addition, RLSs in septal, apical and rALS were affected after 6 months with P values of 0.02, 0.03 and 0.03, respectively. CONCLUSION: RVAP appears to worsen GLS more than RVSP, and the resultant decrease in apical strain is most correlated region to decrease in GLS. Elmer Press 2016-02 2016-02-20 /pmc/articles/PMC5295530/ /pubmed/28197264 http://dx.doi.org/10.14740/cr454w Text en Copyright 2016, Algazzar et al. http://creativecommons.org/licenses/by/2.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Algazzar, Alaa Solaiman
Katta, Azza Ali
Ahmed, Khaled Sayed
Elkenany, Nasima Mohamed
Ibrahim, Maher Abdelaleem
Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing
title Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing
title_full Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing
title_fullStr Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing
title_full_unstemmed Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing
title_short Changes in Left Ventricular Global and Regional Longitudinal Strain During Right Ventricular Pacing
title_sort changes in left ventricular global and regional longitudinal strain during right ventricular pacing
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5295530/
https://www.ncbi.nlm.nih.gov/pubmed/28197264
http://dx.doi.org/10.14740/cr454w
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