Stewart Townley Boyd

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Niridazole alone (at 50 mg/kg/day) and particularly in combination with azathioprine and prednisolone showed potent immunosuppressive activity, far surpassing that produced by conventional agents, in the rat heterotopic cardiac allograft model. Benzoylmetronidazole or metronidazole (at 50 mg/kg/day) either alone or in combination with azathioprine and(More)
A system has been developed for the ex vivo functional testing of isolated hearts. Three groups, each of 10 pig hearts, have been studied: group 1--freshly excised hearts; group 2--heart hypothermically perfused for 20 - 24 hours with Krebs-Henseleit solution; group 3--hearts similarly perfused with a clear fluid hyperosmolar solution. Group 2 hearts(More)
A shortage of donors remains the major limiting factor as regards the number of kidney and heart transplants performed in South Africa each year. The medical, legal and administrative aspects of cadaveric organ donation in this country are reviewed. The pathophysiology of brain death and the criteria necessary for a definite diagnosis are described,(More)
A general review of psychological reactions to a disaster situation in four groups of people is presented. Adult reactions (and management thereof) vary according to the phase of the disaster, viz (i) the pre-impact phase characterized by underactivity, development of anxiety symptoms or involvement in adaptive activities; (ii) the warning phase typically(More)
Dysentery due to infestation with the whipworm, Trichuris trichiura, is common among underprivileged children living in Cape Town. Chronic blood loss and a diet deficient in iron leads to profound anaemia and it is not unusual for young children with this infestation to present in cardiac failure. While temporary correction of anaemia and treatment ofiron(More)
An important question after clinical auxiliary heart transplantation is whether controlled pacing of both hearts is desirable in order to protect the diseased recipient heart. A comparison of the effects of spontaneous beating with three types of pacing (random, simultaneous and sequential) was undertaken in an isolated perfused working double rat heart.(More)
Fifty-four human-to-human cardiac transplants (10 orthotopic and 44 heterotopic) in 50 patients were performed between December, 1967, and December, 1981. The underlying cardiac pathology was ischemic (IHD) in 29, cardiomyopathic (CM) in 17, rheumatic (RHD) in four, and mixed or other pathology in four. Patients with RHD survived for a mean period over(More)
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