To determine whether thallium-201 washout profile analysis can detect regional myocardial ischemia caused by coronary artery bypass graft occlusion or progression of disease in nonbypassed coronary arteries, 19 consecutive patients with chest pain following bypass grafting were evaluated with coronary arteriography and thallium-201 scintigraphy. Twenty of the 55 coronary artery regions were perfused by an occluded bypass graft or a significantly stenosed (greater than or equal to 70% diameter narrowing) nonbypassed coronary artery, while 35 coronary regions were perfused by patent bypass grafts or insignificantly diseased coronary arteries. The tomographic thallium-201 washout profile results correlated with the bypass graft and coronary arteriographic findings (k = 0.67, P less than 0.001). The sensitivity of tomographic thallium-201 washout profile abnormalities for arteriographic abnormalities was 75%, while the specificity was 86%. The authors conclude that tomographic thallium-201 washout profile analysis may be very useful in the evaluation of patients with chest pain following coronary artery bypass grafting by detecting regional myocardial ischemia caused by occlusion of specific bypass grafts or progression of disease in nonbypassed coronary arteries.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/00003072-198702000-00013 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Real-world application of CCTA with CT-FFR for coronary assessment pre-TAVI: the CT2TAVI study.
Int J Cardiovasc Imaging
January 2025
Cardiology, Endeavor NorthShore Cardiovascular Institute, Evanston, IL, USA.
This study aims to evaluate the implementation of concomitant CAD assessment on pre-TAVI (transcatheter aortic valve implantation) planning CTA (CT angiography) aided by CT-FFR (CT-fractional flow reserve) [The CT2TAVI protocol] and investigates the incremental value of CT-FFR to coronary CT angiography (CCTA) alone in the evaluation of patients undergoing CT2TAVI. This is a prospective observational real-world cohort study at an academic health system on consecutive patients who underwent CTA for TAVI planning from 1/2021 to 6/2022. This represented a transition period in our health system, from not formally reporting CAD on pre-TAVI planning CTA (Group A) to routinely reporting CAD on pre-TAVI CTA (Group B; CT2TAVI protocol).
View Article and Find Full Text PDFDiagnosis and Management of Acute Coronary Syndrome Patients Without Obstructive Epicardial Stenosis.
Curr Cardiol Rep
January 2025
Division of Cardiology, Louisiana State University Health Sciences Center - Shreveport (LSUHSC-S), 1501 Kings Hwy, Shreveport, LA, 71103, USA.
Purpose Of Review: What is the pathophysiology and clinical findings as well as management of patients presenting with INOCA/MINOCA (Ischemia/Myocardial Infarction with Non-Obstructive Coronary Arteries).
Recent Findings: INOCA/MINOCA has a complex pathophysiology. In this review article, we aim to summarize the complex pathophysiology and clinical diagnosis, and review the current management options.
An Update on Multi-System Inflammatory Syndrome in Children.
Curr Rheumatol Rep
January 2025
Division of Rheumatology, Department of Pediatrics, The Warren Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI, 02903, USA.
Purpose: To summarize the latest research on the epidemiology, pathogenesis, diagnosis, and treatment of multisystem inflammatory syndrome in children (MIS-C).
Recent Findings: The epidemiology of MIS-C has been dynamic since its initial description. The pathogenesis remains poorly understood.
Risk factors that predict for presence of clinically significant, noncalcified plaque in younger adults.
Coron Artery Dis
January 2025
Department of Cardiology, Lundquist Institute, Torrance, California, USA.
Objective: Coronary artery calcium (CAC) scoring may be a useful tool for assessing cardiovascular disease in young adults, particularly in those with risk factors such as hypertension, dyslipidemia, or smoking. In this study, we aimed to address the risk factors for developing noncalcified plaque in young adults by assessing total plaque burden.
Methods: A single-center retrospective cohort study was conducted among 1026 consecutive patients aged 18-45 years who underwent CAC scoring and coronary computed tomography (CT) angiograms for clinical indications.
Noncardiac chest computerized tomography scan as a predictor for plaque presence in coronary artery.
Coron Artery Dis
January 2025
Intensive Cardiac Care Department, Ziv Medical Center.
Background: Coronary artery calcium, a marker of coronary atherosclerosis, is often identified on noncoronary chest computed tomography (CT). We wanted to evaluate the correlation between the presence of coronary plaques in coronary artery catheterization and coronary calcifications as shown in noncardiac chest CT.
Methods: A retrospective case-control study consisting of cases (N = 63) and controls (N = 29), aged 18-70 years old, residing in northern Israel and treated in the Intensive Cardiac Care Unit of Ziv Medical Center, between January 2020 and November 2022.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!