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Optimizing the pacing site in the ventricular septum by fluoroscopy and morphology of the paced QRS complex.
MedLine Citation:
PMID:  22660211     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aims. To analyze the paced QRS duration in various septal positions of the right ventricular leads and with different paced QRS vectors. To use the results to assess parameters suggesting the optimal site for right ventricular pacing. Methods and results. A total of 609 patients with leads implanted in the right ventricular septum were classified using fluoroscopy in the lateral view (the primary pacing site), and in the anteroposterior view (the secondary pacing site), according to the QRS vector in leads I and III. Significantly shortened paced QRS was found in the primary pacing site with the true septal compared with the anteroseptal site, with the vector being negative or isoelectric in lead I plus positive in lead III. In secondary pacing sites, no significant difference in pacing QRS duration was found between RVOT-HS, RVOT-LS, mid-septum and inferior-septum. Conclusions. For optimization of the pacing site in the ventricular septum, the following are significant: the primary site based on the lateral view, and the paced QRS vector in leads I and III.
Authors:
Libor Kamenik; Pavel Sedlon; Tomas Hnatek; Eva Krcova; Jiri Jarkovsky; Simona Littnerova; Milos Taborsky
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-19
Journal Detail:
Title:  Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia     Volume:  -     ISSN:  1213-8118     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2012-6-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101140142     Medline TA:  Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic. milos.taborsky@fnol.cz.
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