Ann Acad Med Singap
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Ann Acad Med Singap · Sep 1992
Randomized Controlled Trial Clinical TrialAn assessment of preoxygenation techniques using the pulse oximeter.
The effect of preoxygenation with varying inspired oxygen concentration on the arterial oxygen saturation during induction of anaesthesia and intubation was studied using the pulse oximeter. Sixty-five healthy, young adults, (American Society of Anaesthesiologists Class I) undergoing elective surgery were randomly divided into three groups. Group I patients were not preoxygenated. ⋯ No patient had clinical signs of hypoxaemia. Patients who were preoxygenated with either 50% oxygen and nitrous oxide or 100% oxygen showed similar and clinically insignificant desaturation during this period. One minute after intubation and manual ventilation with 100% oxygen, the saturations of all patients returned to preinduction levels.
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This is a five year retrospective study of chemical burn injury in our burn center between 1 January 1987 and 31 December 1991. Of the 1,226 total burn cases, 131 patients had chemical burns. We noted a constant prevailing incidence of 10.7% per year. ⋯ We had three mortality cases with deep third degree burns covering 60% of their total body surface area. Some clinical cases are demonstrated. Lastly, proposed solutions for the prevention of chemical burns are cited.
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Ann Acad Med Singap · Sep 1992
Case ReportsMass ammonia inhalational burns--experience in the management of 12 patients.
Twelve Korean crew members of a deep sea fishing vessel were admitted to the Burns Centre, Singapore General Hospital following exposure to ammonia gas. The injuries sustained were primarily respiratory burns with minor cutaneous and corneal burns. They were divided into three grades of severity based on the admission findings and subsequent clinical course. ⋯ Eight patients were intubated. Ten of the patients with mild and moderate involvement of the respiratory tract recovered without complication. Of the two patients with severe respiratory burns, one died while another progressed to chronic debilitating airway disease.
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Ann Acad Med Singap · May 1992
A prevalence study of dysmenorrhoea in female residents aged 15-54 years in Clementi Town, Singapore.
A community-based questionnaire survey to study the prevalence of dysmenorrhoea, its associated risk factors and impact on daily living was carried out on a random sample of 415 female persons aged 15 to 54 residing in Housing Development Board flats in Clementi Town. The overall prevalence of dysmenorrhoea, defined as one or more episodes of menstrual cramp or pain in the previous year, not due to a diagnosed gynaecological disease, was 51.3%. ⋯ Among those with dysmenorrhoea, about 52% of students, 42% of working women, and 30% of housewives reported that their ability to perform work was affected. About 6% of all women consulted a doctor for their problem, and 10% of all employed women reported having been sick-absent because of dysmenorrhoea.
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The pathology, clinical features, indications for surgery and the results of intrathoracic aneurysm are analysed in thirty-nine consecutive patients who underwent surgery at Singapore General Hospital from January 1986 through December 1990. There were twenty cases of non-dissecting aneurysm and nineteen cases of dissecting aneurysm or aortic dissection. The 30 day survival for the twenty patients with non-dissecting aneurysm was sixteen patients (80%). ⋯ The overall 30-day survival for the nineteen patients with aortic dissection was twelve patients (64%). The mortality was especially high in patients with acute aortic dissection (46%). Recent advances in the management of these aneurysms make early recognition and diagnosis mandatory to achieve the best results.