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Davis EF, Crousillat DR, Peteiro J, Lopez-Sendon J, Senior R, Shapiro MD, Pellikka PA, Lyubarova R, Alfakih K, Abdul-Nour K, Anthopolos R, Xu Y, Kunichoff DM, Fleg JL, Spertus JA, Hochman J, Maron D, Picard MH, Reynolds HR. Global Longitudinal Strain as Predictor of Inducible Ischemia in No Obstructive Coronary Artery Disease in the CIAO-ISCHEMIA Study. J Am Soc Echocardiogr 2024; 37:89-99. [PMID: 37722490 PMCID: PMC10842002 DOI: 10.1016/j.echo.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/18/2023] [Accepted: 09/05/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND Global longitudinal strain (GLS) is a sensitive marker for identifying subclinical myocardial dysfunction in obstructive coronary artery disease (CAD). Little is known about the relationship between GLS and ischemia in patients with myocardial ischemia and no obstructive CAD (INOCA). OBJECTIVES To investigate the relationship between resting GLS and ischemia on stress echocardiography (SE) in patients with INOCA. METHODS Left ventricular GLS was calculated offline on resting SE images at enrollment (n = 144) and 1-year follow-up (n = 120) in the CIAO-ISCHEMIA (Changes in Ischemia and Angina over One year in International Study of Comparative Health Effectiveness with Medical and Invasive Approaches trial screen failures with no obstructive CAD on computed tomography [CT] angiography) study, which enrolled participants with moderate or severe ischemia by local SE interpretation (≥3 segments with new or worsening wall motion abnormality and no obstructive (<50% stenosis) on coronary computed tomography angiography. RESULTS Global longitudinal strain values were normal in 83.3% at enrollment and 94.2% at follow-up. Global longitudinal strain values were not associated with a positive SE at enrollment (GLS = -21.5% positive SE vs GLS = -19.9% negative SE, P = .443) or follow-up (GLS = -23.2% positive SE vs GLS = -23.1% negative SE, P = .859). Significant change in GLS was not associated with positive SE in follow-up (P = .401). Regional strain was not associated with colocalizing ischemia at enrollment or follow-up. Changes in GLS and number of ischemic segments from enrollment to follow-up showed a modest but not clinically meaningful correlation (β = 0.41; 95% CI, 0.16, 0.67; P = .002). CONCLUSIONS In this cohort of INOCA patients, resting GLS values were largely normal and did not associate with the presence, severity, or location of stress-induced ischemia. These findings may suggest the absence of subclinical myocardial dysfunction detectable by echocardiographic strain analysis at rest in INOCA.
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Affiliation(s)
- Esther F Davis
- Echocardiography Laboratory, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts; Victorian Heart Institute and Victorian Heart Hospital, Victoria, Australia
| | - Daniela R Crousillat
- Echocardiography Laboratory, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts; Division of Cardiovascular Sciences, Department of Medicine, University of South Florida, Tampa, Florida; Department of Obstetrics and Gynecology, Tampa General-Heart and Vascular Institute, University of South Florida, Tampa, Florida
| | - Jesus Peteiro
- CHUAC, Universidad de A Coruña, CIBER-CV, A Coruna, Spain
| | | | - Roxy Senior
- Northwick Park Hospital-Royal Brompton Hospital, London, United Kingdom
| | - Michael D Shapiro
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | | | | | | | | | - Rebecca Anthopolos
- Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, New York, New York
| | - Yifan Xu
- Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, New York, New York
| | - Dennis M Kunichoff
- Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, New York, New York
| | - Jerome L Fleg
- National Institute of Health-National Heart Lung, and Blood Institute, Bethesda, Maryland
| | - John A Spertus
- Saint Luke's Mid America Heart Institute/University of Missouri-Kansas City, Kansas City, Missouri
| | - Judith Hochman
- Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, New York, New York
| | - David Maron
- Department of Medicine, Stanford University School of Medicine, Stanford, California
| | - Michael H Picard
- Echocardiography Laboratory, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts
| | - Harmony R Reynolds
- Cardiovascular Clinical Research Center, Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, New York, New York.
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