Visualisation and quantification of peri-operative myocardial infarction after coronary artery bypass surgery with contrast-enhanced magnetic resonance imaging

Steuer, Johnny; Bjerner, Tomas; Duvernoy, Olov; Jidéus, Lena; Johansson, Lars; Åhlström, Håkan; Ståhle, Elisabeth; Lindahl, Bertil

doi:10.1016/j.ehj.2004.05.015

Cited by 56 publications

(36 citation statements)

References 26 publications

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“…In contrast to the current literature, the size of the MI as well as CK max did not differ significantly between patients with and without PM involvement although both were slightly higher in patients with PM involvement [20]. This might be a result of the number of patients with PM involvement being too small to reach significance.…”

Section: Discussioncontrasting

confidence: 99%

Impact of Papillary Muscle Infarction on Ischemic Mitral Regurgitation Assessed by Magnetic Resonance Imaging

Bretschneider

Heinrich

Seeger

et al. 2017

Fortschr Röntgenstr

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This document was downloaded for personal use only. Unauthorized distribution is strictly prohibited.the development of mitral regurgitation in patients with chronic myocardial infarction (MI). The aim of the present study was to assess the correlation of PM infarction depicted by MRI with mitral regurgitation and left ventricular function.Methods and Materials 48 patients with chronic MI and recent MRI and echocardiography were retrospectively included. The location and extent of MI depicted by MRI were correlated with left ventricular function assessed by MRI and mitral regurgitation assessed by echocardiography. The presence, location and extent of PM infarction depicted by late gadolinium enhancement (LGE-) MRI were correlated with functional parameters and compared with patients with chronic MI but no PM involvement.Results PM infarction was found in 11 of 48 patients (23 %) using LGE-MRI. 8/11 patients (73 %) with PM infarction and 22/37 patients (59 %) without PM involvement in MI had ischemic mitral regurgitation. There was no significant difference between location, extent of MI and presence of mitral regurgitation between patients with and without PM involvement in myocardial infarction. In 4/4 patients with complete and in 4/7 patients with partial PM infarction, mitral regurgitation was present. The normalized mean left ventricular enddiastolic volume was increased in patients with ischemic mitral regurgitation. ConclusionThe presence of PM infarction does not correlate with ischemic mitral regurgitation. In patients with complete PM infarction and consequent discontinuity of viable tissue in the PM-chorda-mitral valve complex, the probability of developing ischemic mitral regurgitation seems to be increased. However, the severity of mitral regurgitation is not increased compared to patients with partial or no PM infarction.

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Section: Discussioncontrasting

confidence: 99%

Impact of Papillary Muscle Infarction on Ischemic Mitral Regurgitation Assessed by Magnetic Resonance Imaging

Bretschneider

Heinrich

Seeger

et al. 2017

Fortschr Röntgenstr

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“…Magnetic resonance imaging analyses of patients with elevated cTn after CABG have similarly shown more diffuse, nonregional injury patterns rather than regional MI. 20 Other studies have, in contrast, associated elevated cTn values after surgery with a higher likelihood for postoperative CABG graft loss. 21 Thus, the mechanism of cTn elevation in this context is likely multifactorial, which is supported by results of our and other data.…”

Section: Mohammed Et Al Troponin T After Cardiac Surgery 847mentioning

confidence: 86%

Prospective, Comprehensive Assessment of Cardiac Troponin T Testing After Coronary Artery Bypass Graft Surgery

et al. 2009

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Background-The significance and clinical role of cardiac troponin testing after coronary artery bypass grafting remain unclear. Methods and Results-Cardiac troponin T (cTnT) was measured during the first 24 hours after coronary artery bypass graft surgery in 847 consecutive patients. Only 17 patients (2.0%) had new Q waves or left bundle-branch block after surgery; however, cTnT elevation was observed in nearly all subjects, with a median cTnT concentration of 1.08 ng/mL overall.

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“…Already in the early eighties of the last century, unenhanced clinical MR imaging showed promising results for the identification of myocardial infarction in the living due to the increase of water (edema) within the infarcted muscle. 21,22 Whereas clinical cardiac MR imaging in recent years improved different contrast agents and implemented application schedules as well as contrast agent and cardiac motion adapted sequences to better assess cardiac pathology 17,[23][24][25][26] , postmortem cardiac MR imaging fully depends on imaging of unenhanced structural alterations at different stages of myocardial infarction. These stages showed a specific signal behavior in pmMRI that allow an age staging of the infarction.…”

Section: Discussionmentioning

confidence: 99%

Magnetic resonance imaging goes postmortem: noninvasive detection and assessment of myocardial infarction by postmortem MRI

Jackowski

Warntjes²,

Berge³

et al. 2010

Eur Radiol

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Visualisation and quantification of peri-operative myocardial infarction after coronary artery bypass surgery with contrast-enhanced magnetic resonance imaging

Abstract: Elevated biochemical markers after CABG correspond to the amount of peri-operatively infarcted myocardium.

Cited by 56 publications

References 26 publications

Impact of Papillary Muscle Infarction on Ischemic Mitral Regurgitation Assessed by Magnetic Resonance Imaging

Impact of Papillary Muscle Infarction on Ischemic Mitral Regurgitation Assessed by Magnetic Resonance Imaging

Prospective, Comprehensive Assessment of Cardiac Troponin T Testing After Coronary Artery Bypass Graft Surgery

Magnetic resonance imaging goes postmortem: noninvasive detection and assessment of myocardial infarction by postmortem MRI

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