Evolution of 5 cardiovascular magnetic resonance–derived viability indexes after reperfused myocardial infarction

Background The objective of this study was to evaluate the simultaneous evolution of 5 cardiovascular magnetic resonance–derived myocardial viability indexes. Methods We studied 72 patients with a first ST-elevation myocardial infarction and sustained TIMI 3 flow. In the first week and in the sixth...

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Veröffentlicht in:The American heart journal 2007-04, Vol.153 (4), p.649-655
Hauptverfasser: Bodí, Vicente, MD, FESC, Sanchis, Juan, MD, FESC, Lopez-Lereu, Maria P., MD, Nunez, Julio, MD, Mainar, Luis, MD, Pellicer, Mauricio, MD, Sanz, Roberto, PhD, Gomez, Cristina, PhD, Bosch, Maria J., MD, Husser, Oliver, Chorro, Francisco J., MD, FESC, Llacer, Angel, MD, FESC
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container_end_page 655
container_issue 4
container_start_page 649
container_title The American heart journal
container_volume 153
creator Bodí, Vicente, MD, FESC
Sanchis, Juan, MD, FESC
Lopez-Lereu, Maria P., MD
Nunez, Julio, MD
Mainar, Luis, MD
Pellicer, Mauricio, MD
Sanz, Roberto, PhD
Gomez, Cristina, PhD
Bosch, Maria J., MD
Husser, Oliver
Chorro, Francisco J., MD, FESC
Llacer, Angel, MD, FESC
description Background The objective of this study was to evaluate the simultaneous evolution of 5 cardiovascular magnetic resonance–derived myocardial viability indexes. Methods We studied 72 patients with a first ST-elevation myocardial infarction and sustained TIMI 3 flow. In the first week and in the sixth month of the study, using cardiovascular magnetic resonance imaging, we determined wall thickening (WT) and the following viability indexes: wall thickness, WT with low-dose dobutamine, microvascular perfusion in first-pass imaging, microvascular obstruction in late-enhancement imaging, and transmural extent of necrosis. Results In 250 dysfunctional segments, the evolution outcomes for the viability indexes were as follows: (1) wall thickness thinned (8.6 ± 2.9 versus 7.7 ± 3 mm, P < .001), (2) WT with low-dose dobutamine improved (1.5 ± 1.9 versus 2.6 ± 3 mm, P < .001), (3) the number of segments showing abnormal microvascular perfusion in first-pass imaging decreased (22% versus 7%, P < .001), (4) the number of segments showing microvascular obstruction in late-enhancement imaging decreased (14% versus 2%, P < .001), and (5) the transmural extent of necrosis remained stable throughout follow-up (56% ± 40% versus 54% ± 39%, P = .3). Conclusions After reperfused myocardial infarction, dynamic changes in wall thickness, contractile reserve, microvascular perfusion, and microvascular obstruction take place. These changes may affect their accuracy as viability indexes early after myocardial infarction. The transmural extent of necrosis does not vary, however.
doi_str_mv 10.1016/j.ahj.2006.12.023
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Methods We studied 72 patients with a first ST-elevation myocardial infarction and sustained TIMI 3 flow. In the first week and in the sixth month of the study, using cardiovascular magnetic resonance imaging, we determined wall thickening (WT) and the following viability indexes: wall thickness, WT with low-dose dobutamine, microvascular perfusion in first-pass imaging, microvascular obstruction in late-enhancement imaging, and transmural extent of necrosis. Results In 250 dysfunctional segments, the evolution outcomes for the viability indexes were as follows: (1) wall thickness thinned (8.6 ± 2.9 versus 7.7 ± 3 mm, P &lt; .001), (2) WT with low-dose dobutamine improved (1.5 ± 1.9 versus 2.6 ± 3 mm, P &lt; .001), (3) the number of segments showing abnormal microvascular perfusion in first-pass imaging decreased (22% versus 7%, P &lt; .001), (4) the number of segments showing microvascular obstruction in late-enhancement imaging decreased (14% versus 2%, P &lt; .001), and (5) the transmural extent of necrosis remained stable throughout follow-up (56% ± 40% versus 54% ± 39%, P = .3). Conclusions After reperfused myocardial infarction, dynamic changes in wall thickness, contractile reserve, microvascular perfusion, and microvascular obstruction take place. These changes may affect their accuracy as viability indexes early after myocardial infarction. The transmural extent of necrosis does not vary, however.</description><identifier>ISSN: 0002-8703</identifier><identifier>EISSN: 1097-6744</identifier><identifier>DOI: 10.1016/j.ahj.2006.12.023</identifier><identifier>PMID: 17383307</identifier><identifier>CODEN: AHJOA2</identifier><language>eng</language><publisher>New York, NY: Mosby, Inc</publisher><subject>Angioplasty ; Biological and medical sciences ; Cardiology ; Cardiology. Vascular system ; Cardiovascular ; Confidence intervals ; Coronary heart disease ; Enzymes ; Female ; Heart ; Heart attacks ; Humans ; Intubation ; Magnetic Resonance Imaging ; Male ; Medical sciences ; Middle Aged ; Myocardial Infarction - diagnosis ; Myocardial Infarction - therapy ; Myocardial Reperfusion ; Studies ; Veins &amp; arteries</subject><ispartof>The American heart journal, 2007-04, Vol.153 (4), p.649-655</ispartof><rights>Mosby, Inc.</rights><rights>2007 Mosby, Inc.</rights><rights>2008 INIST-CNRS</rights><rights>Copyright Elsevier Limited Apr 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-a52841e42361a7f7dc70b44aeb49c851ee991e870b845b97eb8c41d45f5add283</citedby><cites>FETCH-LOGICAL-c464t-a52841e42361a7f7dc70b44aeb49c851ee991e870b845b97eb8c41d45f5add283</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/1504609354?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976,64364,64366,64368,72218</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=19907979$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17383307$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bodí, Vicente, MD, FESC</creatorcontrib><creatorcontrib>Sanchis, Juan, MD, FESC</creatorcontrib><creatorcontrib>Lopez-Lereu, Maria P., MD</creatorcontrib><creatorcontrib>Nunez, Julio, MD</creatorcontrib><creatorcontrib>Mainar, Luis, MD</creatorcontrib><creatorcontrib>Pellicer, Mauricio, MD</creatorcontrib><creatorcontrib>Sanz, Roberto, PhD</creatorcontrib><creatorcontrib>Gomez, Cristina, PhD</creatorcontrib><creatorcontrib>Bosch, Maria J., MD</creatorcontrib><creatorcontrib>Husser, Oliver</creatorcontrib><creatorcontrib>Chorro, Francisco J., MD, FESC</creatorcontrib><creatorcontrib>Llacer, Angel, MD, FESC</creatorcontrib><title>Evolution of 5 cardiovascular magnetic resonance–derived viability indexes after reperfused myocardial infarction</title><title>The American heart journal</title><addtitle>Am Heart J</addtitle><description>Background The objective of this study was to evaluate the simultaneous evolution of 5 cardiovascular magnetic resonance–derived myocardial viability indexes. Methods We studied 72 patients with a first ST-elevation myocardial infarction and sustained TIMI 3 flow. In the first week and in the sixth month of the study, using cardiovascular magnetic resonance imaging, we determined wall thickening (WT) and the following viability indexes: wall thickness, WT with low-dose dobutamine, microvascular perfusion in first-pass imaging, microvascular obstruction in late-enhancement imaging, and transmural extent of necrosis. Results In 250 dysfunctional segments, the evolution outcomes for the viability indexes were as follows: (1) wall thickness thinned (8.6 ± 2.9 versus 7.7 ± 3 mm, P &lt; .001), (2) WT with low-dose dobutamine improved (1.5 ± 1.9 versus 2.6 ± 3 mm, P &lt; .001), (3) the number of segments showing abnormal microvascular perfusion in first-pass imaging decreased (22% versus 7%, P &lt; .001), (4) the number of segments showing microvascular obstruction in late-enhancement imaging decreased (14% versus 2%, P &lt; .001), and (5) the transmural extent of necrosis remained stable throughout follow-up (56% ± 40% versus 54% ± 39%, P = .3). Conclusions After reperfused myocardial infarction, dynamic changes in wall thickness, contractile reserve, microvascular perfusion, and microvascular obstruction take place. These changes may affect their accuracy as viability indexes early after myocardial infarction. The transmural extent of necrosis does not vary, however.</description><subject>Angioplasty</subject><subject>Biological and medical sciences</subject><subject>Cardiology</subject><subject>Cardiology. 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Methods We studied 72 patients with a first ST-elevation myocardial infarction and sustained TIMI 3 flow. In the first week and in the sixth month of the study, using cardiovascular magnetic resonance imaging, we determined wall thickening (WT) and the following viability indexes: wall thickness, WT with low-dose dobutamine, microvascular perfusion in first-pass imaging, microvascular obstruction in late-enhancement imaging, and transmural extent of necrosis. Results In 250 dysfunctional segments, the evolution outcomes for the viability indexes were as follows: (1) wall thickness thinned (8.6 ± 2.9 versus 7.7 ± 3 mm, P &lt; .001), (2) WT with low-dose dobutamine improved (1.5 ± 1.9 versus 2.6 ± 3 mm, P &lt; .001), (3) the number of segments showing abnormal microvascular perfusion in first-pass imaging decreased (22% versus 7%, P &lt; .001), (4) the number of segments showing microvascular obstruction in late-enhancement imaging decreased (14% versus 2%, P &lt; .001), and (5) the transmural extent of necrosis remained stable throughout follow-up (56% ± 40% versus 54% ± 39%, P = .3). Conclusions After reperfused myocardial infarction, dynamic changes in wall thickness, contractile reserve, microvascular perfusion, and microvascular obstruction take place. These changes may affect their accuracy as viability indexes early after myocardial infarction. The transmural extent of necrosis does not vary, however.</abstract><cop>New York, NY</cop><pub>Mosby, Inc</pub><pmid>17383307</pmid><doi>10.1016/j.ahj.2006.12.023</doi><tpages>7</tpages></addata></record>
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subjects Angioplasty
Biological and medical sciences
Cardiology
Cardiology. Vascular system
Cardiovascular
Confidence intervals
Coronary heart disease
Enzymes
Female
Heart
Heart attacks
Humans
Intubation
Magnetic Resonance Imaging
Male
Medical sciences
Middle Aged
Myocardial Infarction - diagnosis
Myocardial Infarction - therapy
Myocardial Reperfusion
Studies
Veins & arteries
title Evolution of 5 cardiovascular magnetic resonance–derived viability indexes after reperfused myocardial infarction
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