A. C. Tweddel
Castle Hill Hospital
11 Papers
112 Citations
A. C. Tweddel is an academic researcher from Castle Hill Hospital. The author has contributed to research in topics: Chest pain & Myocardial infarction. The author has an hindex of 8, co-authored 11 publications.
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Papers
Myocardial perfusion scintigraphy: the evidence
S. R. Underwood,Constantinos Anagnostopoulos,Manuel D. Cerqueira,Peter J. Ell,E. J. Flint,Mark Harbinson,A. D. Kelion,Abdallah Al-Mohammad,Elizabeth Prvulovich,Leslee J. Shaw,A. C. Tweddel +10 more
TL;DR: The evidence for the role of myocardial perfusion scintigraphy in patients with known or suspected coronary artery disease is summarized and evidence from modelling and observational studies supports the enhanced cost-effectiveness associated with MPS use.
Symptomatic and silent myocardial ischaemia in hypertensive patients with left ventricular hypertrophy.
Stuart D. Pringle,F G Dunn,A. C. Tweddel,Will Martin,Peter W. Macfarlane,James H. McKillop,A R Lorimer,Stuart M. Cobbe +7 more
TL;DR: Symptomatic and silent myocardial ischaemia are common in hypertensive patients with left ventricular hypertrophy, even in the absence of epicardial coronary artery disease.
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Evaluation of digitalis in cardiac failure.
TL;DR: In this study both intravenous ouabain and maintenance treatment with oral digoxin exerted a modest positive inotropic effect in patients with cardiac failure in sinus rhythm, however, the haemodynamic benefit was manifest only during exertion.
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A survey of nuclear cardiological practice in Great Britain. The British Nuclear Cardiology Group.
TL;DR: Data show that nuclear cardiology techniques are used much less frequently in Great Britain than in countries such as the United States and Germany, that the ratio of blood pool to myocardial perfusion imaging is much higher than elsewhere, and that methods are poorly standardised.
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Balanced triple-vessel disease: enhanced detection by estimated myocardial thallium uptake.
TL;DR: Thallium scans were normal in 11 of 55 patients with triple-vessel disease and eight of 26 with single- or double-vessels disease, however, five of the eight proved to have abnormal myocardial thallium uptake, and combining the tests improved sensitivity from 76.5% for the scan alone to 94.5%.
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