Alteration in Subendocardial and Subepicardial Myocardial Strain in Patients with Aortic Valve Stenosis: An Early Marker of Left Ventricular Dysfunction?

Background It has been suggested that myocardial systolic impairment may not be accurately detected by the evaluation of endocardial excursion alone. The aim of this study was to test the hypothesis that changes in left ventricular (LV) subendocardial and subepicardial strain are sensitive markers o...

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Veröffentlicht in:Journal of the American Society of Echocardiography 2012-02, Vol.25 (2), p.153-159
Hauptverfasser: Hyodo, Eiichi, MD, Arai, Kotaro, MD, Koczo, Agnes, BA, Shimada, Yuichi J., MD, Fujimoto, Kohei, MD, Di Tullio, Marco R., MD, Homma, Shunichi, MD, Gillam, Linda D., MD, Hahn, Rebecca T., MD
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container_issue 2
container_start_page 153
container_title Journal of the American Society of Echocardiography
container_volume 25
creator Hyodo, Eiichi, MD
Arai, Kotaro, MD
Koczo, Agnes, BA
Shimada, Yuichi J., MD
Fujimoto, Kohei, MD
Di Tullio, Marco R., MD
Homma, Shunichi, MD
Gillam, Linda D., MD
Hahn, Rebecca T., MD
description Background It has been suggested that myocardial systolic impairment may not be accurately detected by the evaluation of endocardial excursion alone. The aim of this study was to test the hypothesis that changes in left ventricular (LV) subendocardial and subepicardial strain are sensitive markers of severity of aortic stenosis (AS) and LV function in patients with AS. Methods Transthoracic echocardiography was performed in 73 consecutive patients with AS who had preserved systolic function and in 20 controls. Longitudinal strain, subendocardial radial strain, subepicardial radial strain, and transmural radial strain were measured using LV apical and short-axis images. Results The 73 patients enrolled in this study were classified according to AS severity: mild ( n  = 10), moderate ( n  = 15), or severe ( n  = 48). Although transmural and subepicardial radial strain showed similar values in all groups, subendocardial radial strain and longitudinal strain could differentiate mild or moderate AS from severe AS. Only the ratio of subendocardial to subepicardial radial strain (the bilayer ratio) decreased significantly as the severity of AS increased. Bilayer ratio showed weak correlations with LV ejection fraction ( r  = 0.37) and E/E′ ratio ( r  = −0.33) and moderate correlations with LV mass ( r  = −0.55) and aortic valve area ( r  = 0.71). Moreover, bilayer ratio was independently associated with AS severity ( P  = .001). In 21 patients who underwent aortic valve replacement, subendocardial radial strain and bilayer ratio increased 7 days after surgery, whereas other echocardiographic parameters of LV function showed no improvement. Conclusions Bilayer ratio can reliably differentiate patients with varying degrees of AS severity and is a sensitive marker of LV function. These findings suggest that the evaluation of subendocardial and subepicardial radial strain might be a novel method for assessing LV mechanics in patients with AS.
doi_str_mv 10.1016/j.echo.2011.11.003
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The aim of this study was to test the hypothesis that changes in left ventricular (LV) subendocardial and subepicardial strain are sensitive markers of severity of aortic stenosis (AS) and LV function in patients with AS. Methods Transthoracic echocardiography was performed in 73 consecutive patients with AS who had preserved systolic function and in 20 controls. Longitudinal strain, subendocardial radial strain, subepicardial radial strain, and transmural radial strain were measured using LV apical and short-axis images. Results The 73 patients enrolled in this study were classified according to AS severity: mild ( n  = 10), moderate ( n  = 15), or severe ( n  = 48). Although transmural and subepicardial radial strain showed similar values in all groups, subendocardial radial strain and longitudinal strain could differentiate mild or moderate AS from severe AS. Only the ratio of subendocardial to subepicardial radial strain (the bilayer ratio) decreased significantly as the severity of AS increased. Bilayer ratio showed weak correlations with LV ejection fraction ( r  = 0.37) and E/E′ ratio ( r  = −0.33) and moderate correlations with LV mass ( r  = −0.55) and aortic valve area ( r  = 0.71). Moreover, bilayer ratio was independently associated with AS severity ( P  = .001). In 21 patients who underwent aortic valve replacement, subendocardial radial strain and bilayer ratio increased 7 days after surgery, whereas other echocardiographic parameters of LV function showed no improvement. Conclusions Bilayer ratio can reliably differentiate patients with varying degrees of AS severity and is a sensitive marker of LV function. These findings suggest that the evaluation of subendocardial and subepicardial radial strain might be a novel method for assessing LV mechanics in patients with AS.</description><identifier>ISSN: 0894-7317</identifier><identifier>EISSN: 1097-6795</identifier><identifier>DOI: 10.1016/j.echo.2011.11.003</identifier><identifier>PMID: 22129776</identifier><language>eng</language><publisher>United States: Mosby, Inc</publisher><subject>Aged, 80 and over ; Aortic stenosis ; Aortic Valve Stenosis - diagnostic imaging ; Aortic Valve Stenosis - epidemiology ; Aortic Valve Stenosis - physiopathology ; Cardiovascular ; Comorbidity ; Echocardiography - statistics &amp; numerical data ; Elastic Modulus ; Endocardium - diagnostic imaging ; Endocardium - physiopathology ; Female ; Humans ; Male ; New York - epidemiology ; Prevalence ; Reproducibility of Results ; Risk Assessment - methods ; Risk Factors ; Sensitivity and Specificity ; Subendocardial strain ; Subepicardial strain ; Ventricular Dysfunction, Left - diagnostic imaging ; Ventricular Dysfunction, Left - epidemiology ; Ventricular Dysfunction, Left - physiopathology</subject><ispartof>Journal of the American Society of Echocardiography, 2012-02, Vol.25 (2), p.153-159</ispartof><rights>American Society of Echocardiography</rights><rights>2012 American Society of Echocardiography</rights><rights>Copyright © 2012 American Society of Echocardiography. Published by Mosby, Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c410t-4d82b7049490ca79129adec9ecbd8211eb5df444acbd6f2599c3a0eac5928a033</citedby><cites>FETCH-LOGICAL-c410t-4d82b7049490ca79129adec9ecbd8211eb5df444acbd6f2599c3a0eac5928a033</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0894731711008236$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22129776$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hyodo, Eiichi, MD</creatorcontrib><creatorcontrib>Arai, Kotaro, MD</creatorcontrib><creatorcontrib>Koczo, Agnes, BA</creatorcontrib><creatorcontrib>Shimada, Yuichi J., MD</creatorcontrib><creatorcontrib>Fujimoto, Kohei, MD</creatorcontrib><creatorcontrib>Di Tullio, Marco R., MD</creatorcontrib><creatorcontrib>Homma, Shunichi, MD</creatorcontrib><creatorcontrib>Gillam, Linda D., MD</creatorcontrib><creatorcontrib>Hahn, Rebecca T., MD</creatorcontrib><title>Alteration in Subendocardial and Subepicardial Myocardial Strain in Patients with Aortic Valve Stenosis: An Early Marker of Left Ventricular Dysfunction?</title><title>Journal of the American Society of Echocardiography</title><addtitle>J Am Soc Echocardiogr</addtitle><description>Background It has been suggested that myocardial systolic impairment may not be accurately detected by the evaluation of endocardial excursion alone. The aim of this study was to test the hypothesis that changes in left ventricular (LV) subendocardial and subepicardial strain are sensitive markers of severity of aortic stenosis (AS) and LV function in patients with AS. Methods Transthoracic echocardiography was performed in 73 consecutive patients with AS who had preserved systolic function and in 20 controls. Longitudinal strain, subendocardial radial strain, subepicardial radial strain, and transmural radial strain were measured using LV apical and short-axis images. Results The 73 patients enrolled in this study were classified according to AS severity: mild ( n  = 10), moderate ( n  = 15), or severe ( n  = 48). Although transmural and subepicardial radial strain showed similar values in all groups, subendocardial radial strain and longitudinal strain could differentiate mild or moderate AS from severe AS. Only the ratio of subendocardial to subepicardial radial strain (the bilayer ratio) decreased significantly as the severity of AS increased. Bilayer ratio showed weak correlations with LV ejection fraction ( r  = 0.37) and E/E′ ratio ( r  = −0.33) and moderate correlations with LV mass ( r  = −0.55) and aortic valve area ( r  = 0.71). Moreover, bilayer ratio was independently associated with AS severity ( P  = .001). In 21 patients who underwent aortic valve replacement, subendocardial radial strain and bilayer ratio increased 7 days after surgery, whereas other echocardiographic parameters of LV function showed no improvement. Conclusions Bilayer ratio can reliably differentiate patients with varying degrees of AS severity and is a sensitive marker of LV function. These findings suggest that the evaluation of subendocardial and subepicardial radial strain might be a novel method for assessing LV mechanics in patients with AS.</description><subject>Aged, 80 and over</subject><subject>Aortic stenosis</subject><subject>Aortic Valve Stenosis - diagnostic imaging</subject><subject>Aortic Valve Stenosis - epidemiology</subject><subject>Aortic Valve Stenosis - physiopathology</subject><subject>Cardiovascular</subject><subject>Comorbidity</subject><subject>Echocardiography - statistics &amp; numerical data</subject><subject>Elastic Modulus</subject><subject>Endocardium - diagnostic imaging</subject><subject>Endocardium - physiopathology</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>New York - epidemiology</subject><subject>Prevalence</subject><subject>Reproducibility of Results</subject><subject>Risk Assessment - methods</subject><subject>Risk Factors</subject><subject>Sensitivity and Specificity</subject><subject>Subendocardial strain</subject><subject>Subepicardial strain</subject><subject>Ventricular Dysfunction, Left - diagnostic imaging</subject><subject>Ventricular Dysfunction, Left - epidemiology</subject><subject>Ventricular Dysfunction, Left - physiopathology</subject><issn>0894-7317</issn><issn>1097-6795</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9Uk1vEzEQtRCIpoU_wAH5xmnD2PtphEBRKR9SKpACvVpe76zq1LGDvVu0P6X_Fm_S9sABaSTLM-89zcwbQl4xWDJg1dvtEvW1X3JgbJkCIH9CFgxEnVW1KJ-SBTSiyOqc1SfkNMYtAJQNwHNywjnjoq6rBblb2QGDGox31Di6GVt0ndcqdEZZqlx3SO3NQ-ZyeixuhqDMgfUj8dENkf4xwzVd-TAYTa-UvcUEQuejie_oytELFexEL1W4wUB9T9fYD_QqMYPRo1WBfppiPzo9d_PxBXnWKxvx5f17Rn59vvh5_jVbf__y7Xy1znTBYMiKruFtDYUoBGhVizSY6lAL1G2qMIZt2fVFUaj0r3peCqFzBah0KXijIM_PyJuj7j743yPGQe5M1GitcujHKAWrm7KEYkbyI1IHH2PAXu6D2akwSQZydkRu5eyInB2RKeAg__pefmx32D1SHixIgPdHAKYhbw0GGXXapsbOBNSD7Lz5v_6Hf-jaGpf8sjc4Ydz6Mbi0Pslk5BLkZr6J-SQYA2h4XuV_AT28tD0</recordid><startdate>20120201</startdate><enddate>20120201</enddate><creator>Hyodo, Eiichi, MD</creator><creator>Arai, Kotaro, MD</creator><creator>Koczo, Agnes, BA</creator><creator>Shimada, Yuichi J., MD</creator><creator>Fujimoto, Kohei, MD</creator><creator>Di Tullio, Marco R., MD</creator><creator>Homma, Shunichi, MD</creator><creator>Gillam, Linda D., MD</creator><creator>Hahn, Rebecca T., MD</creator><general>Mosby, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20120201</creationdate><title>Alteration in Subendocardial and Subepicardial Myocardial Strain in Patients with Aortic Valve Stenosis: An Early Marker of Left Ventricular Dysfunction?</title><author>Hyodo, Eiichi, MD ; Arai, Kotaro, MD ; Koczo, Agnes, BA ; Shimada, Yuichi J., MD ; Fujimoto, Kohei, MD ; Di Tullio, Marco R., MD ; Homma, Shunichi, MD ; Gillam, Linda D., MD ; Hahn, Rebecca T., MD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c410t-4d82b7049490ca79129adec9ecbd8211eb5df444acbd6f2599c3a0eac5928a033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Aged, 80 and over</topic><topic>Aortic stenosis</topic><topic>Aortic Valve Stenosis - diagnostic imaging</topic><topic>Aortic Valve Stenosis - epidemiology</topic><topic>Aortic Valve Stenosis - physiopathology</topic><topic>Cardiovascular</topic><topic>Comorbidity</topic><topic>Echocardiography - statistics &amp; numerical data</topic><topic>Elastic Modulus</topic><topic>Endocardium - diagnostic imaging</topic><topic>Endocardium - physiopathology</topic><topic>Female</topic><topic>Humans</topic><topic>Male</topic><topic>New York - epidemiology</topic><topic>Prevalence</topic><topic>Reproducibility of Results</topic><topic>Risk Assessment - methods</topic><topic>Risk Factors</topic><topic>Sensitivity and Specificity</topic><topic>Subendocardial strain</topic><topic>Subepicardial strain</topic><topic>Ventricular Dysfunction, Left - diagnostic imaging</topic><topic>Ventricular Dysfunction, Left - epidemiology</topic><topic>Ventricular Dysfunction, Left - physiopathology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hyodo, Eiichi, MD</creatorcontrib><creatorcontrib>Arai, Kotaro, MD</creatorcontrib><creatorcontrib>Koczo, Agnes, BA</creatorcontrib><creatorcontrib>Shimada, Yuichi J., MD</creatorcontrib><creatorcontrib>Fujimoto, Kohei, MD</creatorcontrib><creatorcontrib>Di Tullio, Marco R., MD</creatorcontrib><creatorcontrib>Homma, Shunichi, MD</creatorcontrib><creatorcontrib>Gillam, Linda D., MD</creatorcontrib><creatorcontrib>Hahn, Rebecca T., MD</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of the American Society of Echocardiography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hyodo, Eiichi, MD</au><au>Arai, Kotaro, MD</au><au>Koczo, Agnes, BA</au><au>Shimada, Yuichi J., MD</au><au>Fujimoto, Kohei, MD</au><au>Di Tullio, Marco R., MD</au><au>Homma, Shunichi, MD</au><au>Gillam, Linda D., MD</au><au>Hahn, Rebecca T., MD</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Alteration in Subendocardial and Subepicardial Myocardial Strain in Patients with Aortic Valve Stenosis: An Early Marker of Left Ventricular Dysfunction?</atitle><jtitle>Journal of the American Society of Echocardiography</jtitle><addtitle>J Am Soc Echocardiogr</addtitle><date>2012-02-01</date><risdate>2012</risdate><volume>25</volume><issue>2</issue><spage>153</spage><epage>159</epage><pages>153-159</pages><issn>0894-7317</issn><eissn>1097-6795</eissn><abstract>Background It has been suggested that myocardial systolic impairment may not be accurately detected by the evaluation of endocardial excursion alone. The aim of this study was to test the hypothesis that changes in left ventricular (LV) subendocardial and subepicardial strain are sensitive markers of severity of aortic stenosis (AS) and LV function in patients with AS. Methods Transthoracic echocardiography was performed in 73 consecutive patients with AS who had preserved systolic function and in 20 controls. Longitudinal strain, subendocardial radial strain, subepicardial radial strain, and transmural radial strain were measured using LV apical and short-axis images. Results The 73 patients enrolled in this study were classified according to AS severity: mild ( n  = 10), moderate ( n  = 15), or severe ( n  = 48). Although transmural and subepicardial radial strain showed similar values in all groups, subendocardial radial strain and longitudinal strain could differentiate mild or moderate AS from severe AS. Only the ratio of subendocardial to subepicardial radial strain (the bilayer ratio) decreased significantly as the severity of AS increased. Bilayer ratio showed weak correlations with LV ejection fraction ( r  = 0.37) and E/E′ ratio ( r  = −0.33) and moderate correlations with LV mass ( r  = −0.55) and aortic valve area ( r  = 0.71). Moreover, bilayer ratio was independently associated with AS severity ( P  = .001). In 21 patients who underwent aortic valve replacement, subendocardial radial strain and bilayer ratio increased 7 days after surgery, whereas other echocardiographic parameters of LV function showed no improvement. Conclusions Bilayer ratio can reliably differentiate patients with varying degrees of AS severity and is a sensitive marker of LV function. These findings suggest that the evaluation of subendocardial and subepicardial radial strain might be a novel method for assessing LV mechanics in patients with AS.</abstract><cop>United States</cop><pub>Mosby, Inc</pub><pmid>22129776</pmid><doi>10.1016/j.echo.2011.11.003</doi><tpages>7</tpages></addata></record>
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subjects Aged, 80 and over
Aortic stenosis
Aortic Valve Stenosis - diagnostic imaging
Aortic Valve Stenosis - epidemiology
Aortic Valve Stenosis - physiopathology
Cardiovascular
Comorbidity
Echocardiography - statistics & numerical data
Elastic Modulus
Endocardium - diagnostic imaging
Endocardium - physiopathology
Female
Humans
Male
New York - epidemiology
Prevalence
Reproducibility of Results
Risk Assessment - methods
Risk Factors
Sensitivity and Specificity
Subendocardial strain
Subepicardial strain
Ventricular Dysfunction, Left - diagnostic imaging
Ventricular Dysfunction, Left - epidemiology
Ventricular Dysfunction, Left - physiopathology
title Alteration in Subendocardial and Subepicardial Myocardial Strain in Patients with Aortic Valve Stenosis: An Early Marker of Left Ventricular Dysfunction?
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