Cargando…
Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation
BACKGROUND AND OBJECTIVES: Irregular RR intervals in atrial fibrillation (AF) make beat-to-beat changes in left ventricular (LV) systolic performance. Early diastolic mitral annular velocity (E') is one of the well-established parameters for evaluating LV diastolic function. The relation betwee...
Autores principales: | , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Korean Society of Cardiology
2012
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3467446/ https://www.ncbi.nlm.nih.gov/pubmed/23091507 http://dx.doi.org/10.4070/kcj.2012.42.9.618 |
_version_ | 1782245805612072960 |
---|---|
author | Kim, Eun Young Choi, Young Hwan Hyeon, Cheol Won Cho, Jun Hwan Kim, Kyung Joon Lee, Wang-Soo Lee, Kwang Je Kim, Sang-Wook Kim, Tae Ho Kim, Chee Jeong |
author_facet | Kim, Eun Young Choi, Young Hwan Hyeon, Cheol Won Cho, Jun Hwan Kim, Kyung Joon Lee, Wang-Soo Lee, Kwang Je Kim, Sang-Wook Kim, Tae Ho Kim, Chee Jeong |
author_sort | Kim, Eun Young |
collection | PubMed |
description | BACKGROUND AND OBJECTIVES: Irregular RR intervals in atrial fibrillation (AF) make beat-to-beat changes in left ventricular (LV) systolic performance. Early diastolic mitral annular velocity (E') is one of the well-established parameters for evaluating LV diastolic function. The relation between RR intervals and E's is unknown. The aim of this study was to observe the influence of continuous changes in RR interval on the parameter for diastolic function in AF. SUBJECTS AND METHODS: Echocardiography was performed in 117 patients with AF. E' was adjusted for the effect of pre-preceding RR interval (RR-2) using the logarithmic equation between RR-2 and E'. The logarithmic equation between adjusted E' and preceding RR interval (RR-1) was calculated. RESULTS: The slope in the relation between RR-1 and E' varied from -2.5 to 2.6. The slope was lower (more likely negative) in patients with higher ratio of early diastolic mitral flow velocity (E) to E' (r=-0.21, p=0.023), ischemic heart disease (IHD, r=0.21, p=0.026), and higher systolic blood pressure (r=-0.19, p=0.046). When patients were divided into these 3 groups on the basis of slope, the lowest slope group (<-0.55, n=39) was associated with higher E'/E (p=0.004) and IHD (p=0.018) compared with the highest slope group (>0.57, n=39). The slope with regards to the relationship between RR-2 and E' also varied from -3.4 to 3.1. CONCLUSION: Changes in RR intervals had variable effects on E's according to clinical variables in AF. |
format | Online Article Text |
id | pubmed-3467446 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | The Korean Society of Cardiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-34674462012-10-22 Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation Kim, Eun Young Choi, Young Hwan Hyeon, Cheol Won Cho, Jun Hwan Kim, Kyung Joon Lee, Wang-Soo Lee, Kwang Je Kim, Sang-Wook Kim, Tae Ho Kim, Chee Jeong Korean Circ J Original Article BACKGROUND AND OBJECTIVES: Irregular RR intervals in atrial fibrillation (AF) make beat-to-beat changes in left ventricular (LV) systolic performance. Early diastolic mitral annular velocity (E') is one of the well-established parameters for evaluating LV diastolic function. The relation between RR intervals and E's is unknown. The aim of this study was to observe the influence of continuous changes in RR interval on the parameter for diastolic function in AF. SUBJECTS AND METHODS: Echocardiography was performed in 117 patients with AF. E' was adjusted for the effect of pre-preceding RR interval (RR-2) using the logarithmic equation between RR-2 and E'. The logarithmic equation between adjusted E' and preceding RR interval (RR-1) was calculated. RESULTS: The slope in the relation between RR-1 and E' varied from -2.5 to 2.6. The slope was lower (more likely negative) in patients with higher ratio of early diastolic mitral flow velocity (E) to E' (r=-0.21, p=0.023), ischemic heart disease (IHD, r=0.21, p=0.026), and higher systolic blood pressure (r=-0.19, p=0.046). When patients were divided into these 3 groups on the basis of slope, the lowest slope group (<-0.55, n=39) was associated with higher E'/E (p=0.004) and IHD (p=0.018) compared with the highest slope group (>0.57, n=39). The slope with regards to the relationship between RR-2 and E' also varied from -3.4 to 3.1. CONCLUSION: Changes in RR intervals had variable effects on E's according to clinical variables in AF. The Korean Society of Cardiology 2012-09 2012-09-27 /pmc/articles/PMC3467446/ /pubmed/23091507 http://dx.doi.org/10.4070/kcj.2012.42.9.618 Text en Copyright © 2012 The Korean Society of Cardiology http://creativecommons.org/licenses/by-nc/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Kim, Eun Young Choi, Young Hwan Hyeon, Cheol Won Cho, Jun Hwan Kim, Kyung Joon Lee, Wang-Soo Lee, Kwang Je Kim, Sang-Wook Kim, Tae Ho Kim, Chee Jeong Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation |
title | Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation |
title_full | Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation |
title_fullStr | Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation |
title_full_unstemmed | Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation |
title_short | Relation Between RR Intervals and Early Diastolic Mitral Annular Velocities in Atrial Fibrillation |
title_sort | relation between rr intervals and early diastolic mitral annular velocities in atrial fibrillation |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3467446/ https://www.ncbi.nlm.nih.gov/pubmed/23091507 http://dx.doi.org/10.4070/kcj.2012.42.9.618 |
work_keys_str_mv | AT kimeunyoung relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT choiyounghwan relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT hyeoncheolwon relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT chojunhwan relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT kimkyungjoon relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT leewangsoo relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT leekwangje relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT kimsangwook relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT kimtaeho relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation AT kimcheejeong relationbetweenrrintervalsandearlydiastolicmitralannularvelocitiesinatrialfibrillation |