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Biomedical subjects

B Donaldson

Publications and source records attributed to B Donaldson.

At least 19 recordsLinked to original sources
PubMed2002

Traumatic pseudoaneurysm of the pulmonary artery: case report and review of the literature.

Pulmonary artery pseudoaneurysm is a very rare but potential complication of chest trauma. These aneurysms are usually produced by penetrating trauma although a few cases have been reported after blunt injury. They should be suspected if there is a persistence of opacity on chest radiograph that when evaluated by contrast-enhanced CT shows an increased opacification of the mass. Diagnosis is confirmed with a pulmonary arteriogram.

Adolescent↗
PubMed2001

Myocardial infarction in men and women under 65 years of age: no evidence of gender bias.

We examined short and long term outcomes of MI in a consecutive series of 169 men and 50 women who were followed for an average of 3.5 years. Similar percentages of men and women were admitted to medical intensive care, received in-patient cardiac rehabilitation, quit smoking at one year, were still smoking, were taking a lipid lowering drug or had returned to work at one year, underwent coronary angiography at 3.5 years or had died by 3.5 years. The lack of gender difference in outcome may reflect an absence of gender bias in the management of men and women with MI in southwest Scotland.

Age Factors↗
PubMed1998

A comparative analysis of surveyors from six hospital accreditation programmes and a consideration of the related management issues.

PURPOSE: To gather data on how accreditors manage surveyors, to compare these data and to offer them to the accreditors for improvement and to the scientific community for knowledge of the accreditation process and reinforcement of the credibility of these processes. DATA SOURCE: The data were gathered with the aid of a questionnaire sent to all accreditors participating in the study. RESULTS: An important finding in this comparative study is the different contractual relationships that exist between the accreditors and their surveyors. CONCLUSION: Surveyors around the world share many common features in terms of careers, training, work history and expectations. These similarities probably arise from the objectives of the accreditors who try to provide a developmental process to their clients rather than an 'inspection'.

Accreditation↗
PubMed1997

Human immunodeficiency virus and lung cancer.

BACKGROUND: The association of human immunodeficiency virus (HIV) infection with lung cancer remains unclear. The presence of multiple risk factors in patients with HIV infection makes it difficult to identify a direct cause-effect relationship. METHODS: A retrospective study of patients with lung cancer who were diagnosed, treated and followed at Harlem Hospital Center, New York, between January 1990 and December 1994 was performed. Eleven HIV-seropositive and 116 HIV-indeterminate patients with histologically proven lung cancer were identified. The two groups were compared with regard to age, sex, race, predisposing factors, stage of presentation, histological type of the tumours and survival. RESULTS: HIV-infected patients with lung cancer were predominantly male smokers who were significantly younger than the control HIV-indeterminate patients with lung cancer. Although adenocarcinoma was seen more frequently in the HIV-seropositive group, the difference was not statistically significant. Survival in HIV-infected patients was shorter than that in HIV-indeterminate patients, suggesting that the cancer may be more aggressive in HIV-infected patients or that the progression of immunoincompetence in these patients may influence survival. CONCLUSION: A direct cause-effect relationship between lung cancer and HIV infection is difficult to establish in the presence of other risk factors, but the incidence of lung cancer may be increasing in HIV-infected men.

Acquired Immunodeficiency Syndrome↗
PubMed1996

Accreditation programs for hospitals: funding and operation.

Accreditation is a formal process by which an authorized body assesses and recognizes an individual, an organization (like a hospital), a program, or a group as complying with requirements such as standards or criteria. This article analyses and compares the activity and funding of six health care accrediting bodies which operate in five different countries, and which in 1994, accredited over 5000 health centres. The data included in this article could be useful for other institutions who wish to commence accreditation programmes for health care organizations.

Accreditation↗
PubMed1987

Real time ultrasound, arterial pulsation and neonatal cerebral infarction.

This paper describes an infant whose cranial ultrasound scan showed marked unilateral cerebral arterial pulsation and enlargement without other abnormality. Subsequent computerized tomogram showed extensive cortical infarction in an area not readily accessed by ultrasound. It is concluded that the real time dimension of cranial ultrasound is of diagnostic value in the absence of demonstrable parenchymal or intraventricular abnormality.

Brain↗
PubMed1978

Improved colorimetric method for determining nitrate and nitrate in foods.

A method is described for determining nitrate and nitrite in cured meat products, cheeses, and vegetables. The nitrite is determined colorimetrically by diazotization of sulfanilic acid and subsequent coupling with N-(1-naphthyl)-ethylenediamine. The concentration of nitrate plus nitrite is determined similarly but after reduction of the nitrate to nitrite on a cadmium column. The difference of the 2 values is a measure of the nitrate concentration. The main improvements are replacing the Griess reagent, which contains a carcinogen, with a mixture of sulfanile acid and N-(1-naphthyl)-ethylenediamine, providing for adjustment of pH of the sample suspension during extraction and digestion by heating, and maintaining constant pH by controlled addition of buffers and acids during color development. The method was successfully applied to the analysis of 15 samples of meat products, 23 cheeses, and 6 different vegetables. The average recovery of sodium nitrite added at levels ranging from 10 to 30 ppm was 95% and recovery of sodium nitrate added at levels from 30 to 400 ppm was 94% (corrected for cadmium column efficiency).

Animals↗
PubMed1971

Food service.

Explore the source record for details and available documents.

Dietary Services↗