The role of prehospital discharge two-dimensional echocardiography in determining the prognosis of survivors of first myocardial infarction

Bhatnagar, S. K.; Moussa, M. A. A.; Al-Yusuf, Abdul Razzak

doi:10.1016/0002-8703(85)90550-2

Cited by 41 publications

(4 citation statements)

References 16 publications

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“…This study provided very valuable information concerning the role of echocardiography performed early in the course of acute myocardial infarction..In their study patients with high wall motion score indices present on admission were more likely to deteriorate during the course of their hospital stay, and this was independent of the initial Killip classification. Similar data have been generated by investigators at the Mayo Clinic [31,32] and elsewhere [33]. All studies reported thus far have demonstrated the excellent predictive value of two-dimensional echocardiography to identify those patients at high risk of developing complications following acute myocardial infarction.…”

Section: Assessment Of Prognosissupporting

confidence: 68%

“…Numerous investigators have demonstrated that two-dimensional echocardiography can be used to assess patient prognosis following acute myocardial infarction [7,11,[29][30][31][32][33]. Most of these studies have relied on creation of wall motion score or score index which reflects the functional extent of the myocardial infarction and correlates well with eventual patient outcome.…”

Section: Assessment Of Prognosismentioning

confidence: 99%

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Echocardiography and coronary artery disease: Current and future applications

Armstrong

1987

Int J Cardiac Imag

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Echocardiographic techniques are becoming more widespread for evaluating patients with known or suspected coronary artery disease. Because it affords an excellent overall view of the heart, two-dimensional echocardiography, rather than M-mode echocardiography, is the imaging procedure of choice when dealing with coronary artery disease. This technique can be used to make the initial diagnosis of acute myocardial infarction, diagnose complications, and assess prognosis following myocardial infarction. Additionally by combining this test with stress testing, latent coronary artery disease can be detected. Recovery of wall motion can be assessed following interventions such as thrombolysis or balloon angioplasty. Investigational and future uses include tissue characterization, which may allow detection of ischemic but potentially viable myocardium, direct coronary visualization for detection of atherosclerotic involvement of the proximal coronary arteries and myocardial contrast echocardiography. The latter technique allows visualization of perfusion by way of injecting contrast material into the coronary circulation. This has been demonstrated to be an accurate means of determining myocardial infarction size in an animal model and is currently being used in a number of centers in patients at the time of cardiac catheterization. In summary two-dimensional echocardiography currently allows assessment of patients with myocardial infarction from the time of their presentation through their convalescent period with respect to diagnosis, prognosis and presence of complications. Exercise echocardiography can diagnose latent coronary artery disease. The newer investigational techniques show promise for furthering our ability to evaluate patients with coronary artery disease using echocardiography.

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Section: Assessment Of Prognosissupporting

confidence: 68%

Section: Assessment Of Prognosismentioning

confidence: 99%

Echocardiography and coronary artery disease: Current and future applications

Armstrong

1987

Int J Cardiac Imag

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“…[1] The reliable assessment of LVEF is essential, especially for evaluating the hemodynamic status of unstable, time-sensitive, critically ill patients. [2,3] Although the modified Simpson method (MSM) has been regarded as the standard method for evaluating EF, several critical care physicians have focused on visually estimating EF (eyeballing EF) due to its high reliability and simple application. Thus, this method of estimating EF has been widely used as an alternative method for evaluating cardiac contractility, especially in the emergency department (ED) and intensive care unit (ICU).…”

Section: Introductionmentioning

confidence: 99%

Learning curve-cumulative summation analysis of visual estimation of left ventricular function in novice practitioners

et al. 2019

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The aim of the present study was to determine the value of cumulative summation (CUSUM) analysis in assessing the proficiency of novice practitioners in estimating the left ventricular ejection fraction (EF). Seven novice practitioners with no echocardiography experience were recruited in this observational study. Each practitioner assessed EF from echocardiographic video files of 100 cases, one by one, and received feedback and teaching. We obtained a CUSUM score through comparison of the gold standard values of EF and the EF values determined by the practitioners. Then, the practitioners underwent the same test 4 weeks later, except without feedback and teaching, using echocardiographic video files from 100 other cases. The mean number of visual estimation cases required to pass the learning curve (LC)-CUSUM test was 56.3 ± 9.1 (95% CI 47.8–64.7). The LC-CUSUM average of the 7 novice practitioners showed improvement in visual estimation skill, with an average acceptable level achieved after a mean experience of 55 cases. In the test performed after 4 weeks, 5 of the 7 novice practitioners showed significantly good overall agreement. All novice practitioners had a kappa coefficient greater than .8, and significant and almost perfect agreement was observed. All the participants exhibited a percentage of correct answers greater than 81%. We found that the novice practitioners could acquire an acceptable level of skill for estimating EF with short-term, self-learning-focused echocardiographic training.

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“…The contractile function of the left ventricle strongly correlates with the prognosis of ischemic heart disease, and is thus very useful as an index in the evaluation of the severity of the disease and the effects of therapy 1) . Ischemic heart disease is diagnosed using tomographic echocardiography, cardiac pool scintigraphy, and left ventricular imaging.…”

Section: Introductionmentioning

confidence: 99%

Left Ventricular Function and Cardiovascular Responses during Moderate Exercise; Investigation of the Exercise M-mode Echocardiography.

Sakai

Fukuhara

Anzai³

et al. 1996

J Phys Ther Sci

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Abstsract. Using exercise echocardiography (M-mode method) with a supine-position leg ergometer, we examined cardiovascular responses and the contractile wall movement and pumping function of the left ventricle in healthy male subjects. Under a moderate exercise load equivalent to the optimum exercise intensity, it is necessary to fully understand changes in PRP and systolic blood pressure to accurately estimate myocardial oxygen demand. Decreases in the telediastolic and telesystolic volumes of the left ventricle, especially a marked decrease in the telesystolic volume, led to differences between the two volumes, resulting in an increased EF. There was a high correlation between changes in PRP and EF during exercise. Although exercise echocardiography requires complex measurement techniques, it is very useful in physiotherapy for risk control in cardiac rehabilitation.

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The role of prehospital discharge two-dimensional echocardiography in determining the prognosis of survivors of first myocardial infarction

Cited by 41 publications

References 16 publications

Echocardiography and coronary artery disease: Current and future applications

Echocardiography and coronary artery disease: Current and future applications

Learning curve-cumulative summation analysis of visual estimation of left ventricular function in novice practitioners

Left Ventricular Function and Cardiovascular Responses during Moderate Exercise; Investigation of the Exercise M-mode Echocardiography.

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