Ann Acad Med Singap
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Episodic headaches associated with ocular symptoms is a frequent complaint in clinical practice. In the medical and medical related field of neurology, one of the most often considered diagnosis is that of classical migraine, whilst in ophthalmology, the condition of intermittent primary angle closure glaucoma must be entertained. This paper reports three cases in which the two conditions were confused, and follows with a discussion on the essential differentiating features that can help in the diagnosis.
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Ann Acad Med Singap · Sep 1990
Hypertext-based enhancement of medical and dental undergraduate learning.
The use of the microcomputer in medical education began about 1977. Since then man computer-assisted learning packages have been developed for preclinical and clinical subjects. ⋯ Elementary levels of animation can also be achieved. In this way it illustrates how a study of Anatomy, for example, can be made using the computer to "dissect" the human body.
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Ann Acad Med Singap · May 1990
Comparative StudyRewarming after cardiopulmonary bypass--a comparison of two methods.
Patients returning to the Intensive Care Unit following cardiac surgery with cardiopulmonary bypass are almost always hypothermic despite having been rewarmed prior to termination of bypass. The study compared the effect of an overhead radiant heat source with a reflective metallised blanket. ⋯ Rectal, tympanic membrane and great toe temperatures were measured. Patients nursed under the radiant heat source had higher temperatures at the end of the study period as compared to those nursed with conventional means (p less than 0.05).
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Ann Acad Med Singap · Jan 1990
The role of protamine dose assay in reversal of heparin following extracorporeal circulation for open heart surgery.
The amount of protamine required for the neutralisation of heparin following cardiopulmonary bypass was determined by a Protamine Titration Assay using the principle of the dose--response curve and the patient's estimated blood volume. In 300 open heart surgery patients, infusion of the determined dose of protamine normalised the Activated Clotting Time (ACT) to baseline levels in 97% of these patients and produced adequate hemostasis. Our present study showed that the dose of protamine dropped to 75% of the dose calculated by conventional method of heparin to protamine ratio of 1:1. This had minimised the adverse effects of excessive protamine administration and optimised coagulation control after extracorporeal circulation.
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Ann Acad Med Singap · Jul 1989
Case ReportsHypoglycaemia misdiagnosed by capillary glucose measurement.
The diagnosis of hypoglycaemia has become much easier with the introduction of bedside capillary glucose measurements which require a single drop of blood from a finger prick. However, such a diagnosis may be wrongly made in patients with poor peripheral circulation. This case report illustrates the common circumstances where misdiagnosis occurs A drop of venous blood should be used for bedside glucose measurement if the diagnosis is in doubt.