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Guy S. Reeder

Bio: Guy S. Reeder is an academic researcher from Mayo Clinic. The author has contributed to research in topics: Myocardial infarction & Angioplasty. The author has an hindex of 64, co-authored 263 publications receiving 17289 citations. Previous affiliations of Guy S. Reeder include University of Arizona & West Virginia University.


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TL;DR: Simultaneous continuous wave Doppler echocardiography and right-sided cardiac pressure measurements were performed during cardiac catheterization in 127 patients and approximately 80% of patients with increased and 57% with normal right ventricular pressure had analyzable Dopplers tricuspid regurgitant velocities that could be used to accurately predictright ventricular systolic pressure.

980 citations

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TL;DR: In patients with acute myocardial infarction, immediate angioplasty does not appear to result in greaterMyocardial salvage than the administration of a thrombolytic agent followed by conservative treatment, although a small difference between these two therapeutic approaches cannot be excluded.
Abstract: Background Immediate angioplasty and the administration of a thrombolytic agent followed by conservative treatment are two approaches to the management of acute myocardial infarction, but these methods have not been compared prospectively. Methods We enrolled 108 patients with acute myocardial infarction in a randomized trial designed to test the hypothesis that immediate angioplasty (without previous thrombolytic therapy) may result in greater myocardial salvage than the administration of a thrombolytic agent followed by conservative treatment. The primary end point was the change in the size of the perfusion defect as assessed at admission and discharge by tomographic imaging with technetium-99m sestamibi, a myocardial perfusion agent that can measure myocardium at risk and final infarct size. Results End-point data were available for 56 patients randomly assigned to receive tissue plasminogen activator (mean [±SD] time to start of infusion, 232 ±174 minutes after the onset of chest pain) and 47 patient...

816 citations

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TL;DR: Increased LA volume index is a powerful predictor of mortality after AMI and provides prognostic information incremental to clinical data and conventional measures of LV systolic and diastolic function.
Abstract: Background— After acute myocardial infarction (AMI), diastolic function assessed by Doppler echocardiography provides important prognostic information that is incremental to systolic function. However, Doppler variables are affected by multiple factors and may change rapidly. In contrast, left atrial (LA) volume is less influenced by acute changes and reflects subacute or chronic diastolic function. This may be of importance when one assesses risk in patients with AMI. Methods and Results— Three hundred fourteen patients with AMI who had a transthoracic echocardiogram with assessment of left ventricular (LV) systolic and diastolic function and measurement of LA volume during admission were identified. The LA volume was corrected for body surface area, and the population was divided according to LA volume index of 32 mL/m2 (2 SDs above normal). LA volume index was >32 mL/m2 in 142 (45%). The primary study end point was all-cause mortality. During follow-up of 15 (range 0 to 33) months, 46 patients (15%) di...

656 citations

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TL;DR: Intravascular ultrasound imaging is a new method in which high resolution images of the arterial wall are obtained with use of a catheter placed within an artery, and an excellent correlation was obtained with those calculated from microscopic slides.

633 citations

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TL;DR: Outcomes in patients with acute MI and any degree of renal failure, including end-stage renal disease, were compared to determine whether treatment of these patients differs from that of patients with normal renal function and to determine the extent to which treatment factors explain differences in prognosis.
Abstract: Patients with renal failure are at increased risk for death after acute myocardial infarction and receive less aggressive treatment compared with patients who have normal renal function.

564 citations


Cited by
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TL;DR: Authors/Task Force Members: Piotr Ponikowski* (Chairperson) (Poland), Adriaan A. Voors* (Co-Chair person) (The Netherlands), Stefan D. Anker (Germany), Héctor Bueno (Spain), John G. F. Cleland (UK), Andrew J. S. Coats (UK)

13,400 citations

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TL;DR: This document provides updated normal values for all four cardiac chambers, including three-dimensional echocardiography and myocardial deformation, when possible, on the basis of considerably larger numbers of normal subjects, compiled from multiple databases.
Abstract: The rapid technological developments of the past decade and the changes in echocardiographic practice brought about by these developments have resulted in the need for updated recommendations to the previously published guidelines for cardiac chamber quantification, which was the goal of the joint writing group assembled by the American Society of Echocardiography and the European Association of Cardiovascular Imaging. This document provides updated normal values for all four cardiac chambers, including three-dimensional echocardiography and myocardial deformation, when possible, on the basis of considerably larger numbers of normal subjects, compiled from multiple databases. In addition, this document attempts to eliminate several minor discrepancies that existed between previously published guidelines.

11,568 citations

Journal ArticleDOI
TL;DR: Members of the Chamber Quantification Writing Group are: Roberto M. Lang, MD, Fase, Michelle Bierig, MPH, RDCS, FASE, Richard B. Devereux,MD, Frank A. Flachskampf, MD and Elyse Foster, MD.
Abstract: Members of the Chamber Quantification Writing Group are: Roberto M. Lang, MD, FASE, Michelle Bierig, MPH, RDCS, FASE, Richard B. Devereux, MD, Frank A. Flachskampf, MD, Elyse Foster, MD, Patricia A. Pellikka, MD, Michael H. Picard, MD, Mary J. Roman, MD, James Seward, MD, Jack S. Shanewise, MD, FASE, Scott D. Solomon, MD, Kirk T. Spencer, MD, FASE, Martin St John Sutton, MD, FASE, and William J. Stewart, MD

10,834 citations

Journal ArticleDOI
TL;DR: It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced in the detection, management, and management of diseases.
Abstract: PREAMBLE......e4 APPENDIX 1......e121 APPENDIX 2......e122 APPENDIX 3......e124 REFERENCES......e124 It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced in the detection, management,

8,362 citations