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This paper details the implementation and operational performance of a minimum-power 2.45-GHz pulse receiver and a companion on-off keyed transmitter for use in a semi-active, duplex RF biomedical transponder. A 50-/spl Omega/ microstrip stub-matched zero-bias diode detector forms the heart of a body-worn receiver that has a CMOS baseband amplifier(More)
BACKGROUND Certain biphasic waveforms with specific time ratios of positive and negative components require less energy for successful defibrillation of the fibrillating ventricles than monophasic waveforms. However, if more efficient waveforms were also to be associated with more injurious effects on myocardial function, they might not provide a true(More)
Free radical production may cause myocardial damage during reperfusion of ischaemic myocardial tissue; when free radicals interact with polyunsaturated fatty acids or their esters, lipid peroxides are produced. A product of lipid peroxidation, malondialdehyde, was measured in 10 subjects with stable angina who underwent angioplasty of a proximal high-grade(More)
H ypertension affects more than 1 billion individuals globally 1 and is estimated to be responsible for 7.6 million premature deaths. 2 Drug 3–5 and lifestyle 6,7 interventions to lower blood pressure (BP), even by small amounts, have been proven to decrease cardiovascular disease (CVD) risk. Multiple lifestyle and genetic factors are thought to contribute(More)
Accepted Cardiovascular Medicine is now a very broad church, incorporating Cardiologists who can be frontline emergency Interventionalists, or experts in cardiac imaging, device implantation, arrhythmia ablation, pharmacology, genetics and research. Above all Cardiologists are clinicians trained in the management of patients with a wide and changing(More)
Department in Antrim experienced a large number of 7-day readmissions, i.e., the number of patients who were discharged from the department and then readmitted from A&E within 7 days of their discharge. Cardiology had the second highest figures within the hospital with 144 of 2780 patients. This number was also high in comparison with national rates, with(More)
UNLABELLED The risk of arterial embolism is well recognised following Direct Current Cardioversion (DCC) for atrial fibrillation although the use of prophylactic anticoagulation remains controversial. AIM To determine the risk of arterial embolism post-cardioversion and which factors predict successful cardioversion and maintenance of sinus rhythm. (More)
The mobile coronary care unit based at Coleraine Hospital was called to 155 patients in the community during a six-monthly period, 74 of whom had sustained a myocardial infarction. Over the same period, 25 of 49 patients admitted via the ordinary ambulance with suspected ischaemic heart disease had sustained a myocardial infarction and received medical care(More)
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