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The Egyptian Journal of Hospital Medicine
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El Fiky, A., El Damanhoury, H., Abdel Halim, W., Naguib, S., El Missiri, A., Salama, A. (2018). Assessment of the Role of Speckle Tracking Echocardiography in Targeting the Left Ventricular Lead Position in Patients Undergoing Cardiac Resynchronization Therapy. The Egyptian Journal of Hospital Medicine, 63(1), 157-171. doi: 10.12816/0023842
Azza Abdallah El Fiky; Hayam El Damanhoury; Walaa Adel Abdel Halim; Sameh Samir Raafat Naguib; Ahmed Mohamed Abou Bakr El Missiri; Ahmed Yehia Ramadan Salama. "Assessment of the Role of Speckle Tracking Echocardiography in Targeting the Left Ventricular Lead Position in Patients Undergoing Cardiac Resynchronization Therapy". The Egyptian Journal of Hospital Medicine, 63, 1, 2018, 157-171. doi: 10.12816/0023842
El Fiky, A., El Damanhoury, H., Abdel Halim, W., Naguib, S., El Missiri, A., Salama, A. (2018). 'Assessment of the Role of Speckle Tracking Echocardiography in Targeting the Left Ventricular Lead Position in Patients Undergoing Cardiac Resynchronization Therapy', The Egyptian Journal of Hospital Medicine, 63(1), pp. 157-171. doi: 10.12816/0023842
El Fiky, A., El Damanhoury, H., Abdel Halim, W., Naguib, S., El Missiri, A., Salama, A. Assessment of the Role of Speckle Tracking Echocardiography in Targeting the Left Ventricular Lead Position in Patients Undergoing Cardiac Resynchronization Therapy. The Egyptian Journal of Hospital Medicine, 2018; 63(1): 157-171. doi: 10.12816/0023842

Assessment of the Role of Speckle Tracking Echocardiography in Targeting the Left Ventricular Lead Position in Patients Undergoing Cardiac Resynchronization Therapy

Article 5, Volume 63, Issue 1, April 2016, Page 157-171  XML PDF (717.33 K)
Document Type: Original Article
DOI: 10.12816/0023842
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Authors
Azza Abdallah El Fiky; Hayam El Damanhoury; Walaa Adel Abdel Halim; Sameh Samir Raafat Naguib; Ahmed Mohamed Abou Bakr El Missiri; Ahmed Yehia Ramadan Salama email
Department of Cardiology, Faculty of Medicine, Ain shams University
Abstract
Background: Cardiac Resynchronization Therapy (CRT) is now a well-established treatment for patients with advanced heart failure through biventricular pacing. Optimizing the left ventricular (LV) lead position via echocardiographic speckle tracking guidance could reduce the rate of non-responders to CRT.
Objectives: to assess the role of speckle tracking echocardiography in determining the proper position of the left ventricular lead in patients undergoing CRT.
Methods: the study population comprised 50 patients who were indicated for CRT according to the ESC 2012 guidelines. Speckle tracking echocardiography was done to all patients before CRT implantation or shortly after implantation while switching off pacing to determine the latest activated myocardial wall of the LV. The patients were classified after CRT implantation into two groups; the first group (group A) included 20 patients and represented those with concordance between the most mechanically delayed myocardial wall derived from speckle tracking echocardiography and the coronary sinus lead position, and the second group (group B) included 30 patients that showed discordance between them. Both groups were recruited for follow-up after a period of 6 months to assess clinical response, echocardiographic response and mortality
Results: Significant correlation was observed between echocardiographic response and the LV lead concordance (p value=0.041), and between combined clinical and echocardiographic response and LV lead concordance. There was a nearly significant difference between clinical response and the LV lead concordance (p value=0.057), and there was a trend towards less mortality in the group with concordant LV lead (10.5% in the concordant group versus 24.1% in the discordant group) with no statistical significance (p value=0.286).
Conclusions: we demonstrated an increased benefit with an echocardiographically optimized LV lead position targeting the most delayed myocardial wall by 2D speckle tracking echocardiography.
 
Keywords
resynchronization; speckle tracking; Strain; Dyssynchrony
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