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The index of microcirculatory resistance (IMR) in takotsubo cardiomyopathy
Catheterization and Cardiovascular Interventions, 2010AbstractWe report a patient who presents with acute chest pain and positive cardiac enzymes clinically consistent with an acute coronary syndrome (ACS). Coronary angiography revealed normal epicardial arteries and the left ventriculogram was notable for apical ballooning. This was strongly suggestive of takotsubo cardiomyopathy.
David V, Daniels, William F, Fearon
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Coronary Artery Disease, 2015
The coronary microcirculation plays a critical role in normal cardiac physiology as well as in many disease states. However, methods to evaluate the function of the coronary microvessels have been limited by technical and theoretical issues. Recently, the index of microcirculatory resistance (IMR) has been proposed and validated as a simple and ...
Martínez, Gonzalo +3 more
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The coronary microcirculation plays a critical role in normal cardiac physiology as well as in many disease states. However, methods to evaluate the function of the coronary microvessels have been limited by technical and theoretical issues. Recently, the index of microcirculatory resistance (IMR) has been proposed and validated as a simple and ...
Martínez, Gonzalo +3 more
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Journal of Cardiovascular Translational Research, 2020
Coronary microvascular dysfunction (CMD) has emerged as an important therapeutic target in the contemporary management of ischemic heart disease. However, due to a lack of a reliable traditional "gold standard" test for CMD, optimal treatment remains undefined.
James Xu +3 more
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Coronary microvascular dysfunction (CMD) has emerged as an important therapeutic target in the contemporary management of ischemic heart disease. However, due to a lack of a reliable traditional "gold standard" test for CMD, optimal treatment remains undefined.
James Xu +3 more
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The International Journal of Cardiovascular Imaging, 2014
This study sought to investigate the relationship between the index of microcirculatory resistance (IMR) and periprocedural myocardial necrosis in patients with unstable angina pectoris (UAP). Fifty-seven UAP patients undergoing elective percutaneous coronary intervention (PCI) of a single lesion were recruited.
Zhiming, Wu +5 more
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This study sought to investigate the relationship between the index of microcirculatory resistance (IMR) and periprocedural myocardial necrosis in patients with unstable angina pectoris (UAP). Fifty-seven UAP patients undergoing elective percutaneous coronary intervention (PCI) of a single lesion were recruited.
Zhiming, Wu +5 more
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JACC: Cardiovascular Interventions, 2013 This study sought to investigate a novel method to calculate the index of microcirculatory resistance (IMR) in the presence of significant epicardial stenosis without the need for balloon dilation to measure the coronary wedge pressure (P(w)).The IMR provides a quantitative measure of coronary microvasculature status.
Leonard Kritharides +2 more
exaly +3 more sources
Catheterization and Cardiovascular Interventions
ABSTRACT Takotsubo syndrome (TTS) is an acute stress‐induced cardiomyopathy characterized by transient left ventricular dysfunction, often mimicking acute coronary syndrome (ACS). Coronary microvascular dysfunction has been implicated in its pathophysiology.
Charles, Gallen +4 more
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ABSTRACT Takotsubo syndrome (TTS) is an acute stress‐induced cardiomyopathy characterized by transient left ventricular dysfunction, often mimicking acute coronary syndrome (ACS). Coronary microvascular dysfunction has been implicated in its pathophysiology.
Charles, Gallen +4 more
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Clinical Hemorheology and Microcirculation, 2018
While fractional flow reserve (FFR) is a good diagnostic index to assess the myocardial ischemia, coronary flow reserve (CFR) and the index of microcirculatory resistance (IMR) can be used to address microvascular status without any significant epicardial disease.
Ju-Hyun, Chung +3 more
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While fractional flow reserve (FFR) is a good diagnostic index to assess the myocardial ischemia, coronary flow reserve (CFR) and the index of microcirculatory resistance (IMR) can be used to address microvascular status without any significant epicardial disease.
Ju-Hyun, Chung +3 more
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European Heart Journal
Abstract Background The Index of Microvascular Resistance (IMR) has emerged as a pivotal index for characterizing the specific endotype of patients with ischemic heart disease and also for predicting their prognosis.
D Galante +11 more
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Abstract Background The Index of Microvascular Resistance (IMR) has emerged as a pivotal index for characterizing the specific endotype of patients with ischemic heart disease and also for predicting their prognosis.
D Galante +11 more
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Journal of Cardiovascular Medicine
Background Coronary microvascular dysfunction (CMD) is common in ST-segment elevation myocardial infarction (STEMI) patients despite timely primary percutaneous coronary intervention (PPCI). Angiography-derived microcirculatory resistance (AMR), a novel noninvasive CMD index, offers potential for risk ...
Wanlin, Feng +7 more
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Background Coronary microvascular dysfunction (CMD) is common in ST-segment elevation myocardial infarction (STEMI) patients despite timely primary percutaneous coronary intervention (PPCI). Angiography-derived microcirculatory resistance (AMR), a novel noninvasive CMD index, offers potential for risk ...
Wanlin, Feng +7 more
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