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F Baum

Publications and source records attributed to F Baum.

At least 37 records · Page 2Linked to original sources
PubMed2000

The power of place: space and time in women's and community health centres in South Australia.

This paper focuses on the importance of time and space in an Australian medical setting. It draws on research findings from a one year project that aimed to explore community perspectives of, and experiences of medical services in three South Australian women's and community health centres. Both qualitative and quantitative methods of data collection and analysis were used in order to address these objectives. A significant finding was the way in which participants described the organisation and experience of time and space in these centres and how this impacted on their health and well being and that of the community. In analysing these spatio-temporal dimensions and the underlying philosophical structures of women's and community health centres, this paper argues that experiences associated with space and time have a positive effect on health status by: diminishing barriers to health services, improving quality of care, increasing community participation, providing safe places for social interaction and strengthening people's sense of belonging or attachment to a particular community and place. Based on these findings, the authors conclude that the spatio-temporal dimensions of health care provision have empowering and positive impacts on a community's health, a significant finding that has implications for the maintenance and future funding of this style of health service.

Community Health Centers↗
PubMed2000

[Stent artifacts in 3D MR angiography: experimental studies].

PURPOSE: The purpose of this phantom study was to evaluate the visualization of vascular stents by using contrast-enhanced (CE) 3D MR angiography (MRA). METHODS: The measurements were performed on a Magnetom Vision operating at 1.5 T with 25 mT/m gradients by using a head coil; a 3D FISP sequence (TR/TE/FA 4.6 ms/1.8 ms/30 degrees) was used. A phantom was designed with a length of 20 cm and consisted of a plastic cylinder filled with hydrogel. Tubes were used to install 7 different stents (Strecker, Boston Scientific; Cragg, Mintec; Wall, Schneider; Memotherm, Angiomed; St-Come, Trigon-MTS; Sinus, Optimed; Palmaz, Johnson & Johnson) with different metal components. The tubes were perfused with a solution of water and Gd-DTPA. Four radiologists evaluated the image quality. The measurements of the endoluminal stent diameters were compared with the findings obtained by digital subtraction angiography. The signal intensities were measured before (inflow), within (stent) and after (outflow) the different stent types. RESULTS: The endoluminal diameter of the Cragg stent and the strecker graft were easily detectable. The signal loss within the lumen of the Wall stent was approx. 10% in relation to the inflow and outflow measurements. The result was an only slightly reduced image quality. The other grafts (St-Come, Sinus, Palmaz, Memotherm) showed significant signal losses ranging from 65% to 96%. A correct diagnosis was not possible within these graft lumina. CONCLUSION: Contrast-enhanced MR angiography can be used to evaluate vascular stents. A prerequisite is the application of particular commercially available grafts.

Angiography, Digital Subtraction↗
PubMed2000

[The radial scar in contrast media-enhanced MR mammography].

INTRODUCTION: In patients with the mammographic findings of a radial scar, contrast enhanced (CE) MR mammography was evaluated in a retrospective study. MATERIAL AND METHODS: In 24 women with radial opacities and black star configurations, CE MR mammography was performed. Examinations were done on a 1.5 T system using bilateral superficial coil (2D technique, T1-weighted FLASH-sequence, TR 336 ms, TE 5 ms, FA 90 degrees). Findings in mammography and MR mammography were compared with the histological results. RESULTS: 15 radial scars (including 4 with additional ADH) and 9 carcinomas (6 in coexistence with a radial scar) presenting with a diameter of 3 mm to 13 mm were evaluated. There was no evidence of malignancy in MRI in 12 of 15 radial scars. In MR mammography 6 of the carcinomas fulfilled the criteria for malignant tumors. There were 3 borderline cases (scored 3 points) corresponding histologically to 1 radial scar, and to 2 carcinomas. Within the results found in MRI there were 2 false positives and 1 false negative. CONCLUSION: CE MR mammography is superior to other imaging modalities in the differentiation between radial scars and carcinomas. However, lesions suggestive of radial scars have to be removed surgically.

Adult↗
PubMed1998

Health promotion in different medical settings: women's health, community health and private practice.

This paper describes the health promotion role of doctors in two medical practice settings: women's and community health centres, and fee-for-service practice. It proposes the establishment of divisions of primary health care in Australia which would be multi-disciplinary and focus on community-wide health issues. The paper is based on data from an interview survey of medical practitioners who had worked in metropolitan Adelaide women's and community health centres and from a questionnaire survey of GPs in private practice. The types of health promotion activity by the doctors in the different settings are discussed. It is concluded that private practice GPs are involved primarily in providing health education advice to individual patients. Doctors within women's and community health centres are more likely to report involvement in group health promotion activity and broader community development initiatives. The study concludes that health promotion which focuses on the health of the local community is best conducted within multidisciplinary health centres. GPs in private practice are limited by the structure of their setting (particularly the fee-for-service basis and reliance on a single discipline) to health promotion which focuses on the needs of individual patients.

Attitude of Health Personnel↗
PubMed1997

A hyperinsulinaemic, sequentially eu- and hypoglycaemic clamp test to characterize autonomous insulin secretion in patients with insulinoma.

To better characterize autonomous insulin secretory behaviour in insulinoma patients and to establish diagnostic criteria with high accuracy, hyper-insulinaemic, sequentially eu- and hypoglycaemic clamp tests were performed in insulinoma patients and control subjects. Ten patients with insulinoma (benign in nine, histologically proven in nine) and 10 patients with suspected episodes of hypoglycaemia, in whom thorough clinical evaluation excluded an insulinoma, were examined. Five insulinoma patients were restudied after successful extirpation of the tumour. Suppression of C-peptide during low-dose [2 pmol kg-1 min-1 (20 mU kg-1 h-1) for 90 min, plasma insulin approximately 120 pmol L-1 (20 mUL-1)] and high-dose [8 pmol kg-1 h-1 (80 mU kg-1 h-1) for 90 min, plasma insulin approximately 450 pmol L-1 (75 mU L-1)] insulin infusion under euglycaemic conditions [plasma glucose 4.4-5.0 mmol L-1 (80-90 mg dL-1)] and during high-dose insulin infusion under hypoglycaemic conditions [glucose 2-2.2 mmol L-1 (40-45 mg dL-1)] was evaluated by radioimmunoassay (RIA). Euglycaemic hyper-insulinaemia suppressed C-peptide in control subjects (P < 0.0001), whereas in insulinoma patients apparently irregular changes in C-peptide concentrations (with spontaneous or paradoxical increments, P = 0.0006 vs. controls) were observed. The combination of hyper-insulinaemia and controlled hypoglycaemia led to a nearly complete suppression of C-peptide in normal subjects (from basal, 0.76 +/- 0.08-0.06 +/- 0.01 nmol L-1; maximum observed value 0.10 nmol L-1), which was more pronounced than at the point of discontinuation of prolonged fasting (> 48 h; 0.26 +/- 0.16 nmol L-1; P = 0.005). In insulinoma patients, C-peptide remained elevated under all conditions (P = 0.51 vs. prolonged fasting). All these findings were reversible after successful surgical removal of the insulinoma. Insulinoma patients could be identified as abnormal by (a) non-suppression of C-peptide even under hyperinsulinaemic/hypoglycaemic conditions (10 out of 10 patients) and (b) irregular increments in C-peptide under conditions that led to at least partial suppression in all normal subjects (9 out of 10 patients) and/or by an apparent shift to the left of insulin secretion relative to glucose concentrations (7 out of 10 patients). Controlled exposure to hyperinsulinaemic/hypoglycaemic conditions can help to characterize autonomous secretion in insulinoma patients and may be used as a diagnostic procedure when conventional methods yield equivocal results.

Adult↗
PubMed1996

Evaluation of a national health promotion program in South Australia.

This paper reports the findings of the evaluation of the South Australian component of the National Better Health Program. The evaluation used analysis of focus-group interviews and key documents to assess the value of the state program. The evaluation demonstrated that for a relatively small investment ($2.4 million was allocated to the project over four years, representing only 0.5 per cent of the annual budget for teaching hospitals in South Australia), much can be achieved by harnessing the energy of local communities. The evaluation concluded that more attention should be directed to structural change, with an emphasis on collaboration across sectors, and community participation. Some key issues for the planning and implementation of health promotion were highlighted: the challenge of marrying local initiatives based on community development with national health promotion objectives; the importance of dedicated and assured funding; the need for increased training and support for health promotion workers; and the importance of continuing a focus on equity in the implementation of health promotion. The paper concludes by questioning the value of the current Australian goals, targets and strategies for health, given the findings from this evaluation.

Community Participation↗
PubMed1995

Researching public health: behind the qualitative-quantitative methodological debate.

Debates about appropriate methodologies for studying public health problems have tended to be polarized. Traditionalists, advocating the use of epidemiology and other methods drawn from a reductionist research tradition have tended to devalue the potential contribution of more interpretive research methods. Those advocating the use of more qualitative methods have often established the legitimacy of these methods by criticising the contribution of quantitative techniques. These debates often mask more fundamental differences in epistemology and approaches to dealing with the issues of power raised by research which aims to be compatible with the philosophy of the new public health. This paper argues that these underlying issues are crucial to contemporary public health debates and the methods are simply tools that are used to further knowledge and have no inherent status as sound or unsound. Public health problems result from complex social, economic, political, biological, genetic and environmental causes. A range of methods are needed to tackle these and public health researchers are most effective when they are eclectic in their choice of methods.

Humans↗
PubMed1992

Cervical fibrotic stenosis in a young Rottweiler.

An 18-month-old neutered male Rottweiler was examined because of slowly progressive spastic tetraparesis and ataxia. Signalment and clinical signs were suggestive of 2 neuronal degenerative diseases presumed to be inherited in young Rottweilers: leukoencephalomyelopathy and neuroaxonal dystrophy. Myelography revealed an extradural compression at the articulation of the second and third cervical vertebrae. At surgery, focal hypertrophy of the yellow ligament was observed to compress the spinal cord ventrally at that site.

Animals↗
PubMed1992

Role of endogenously released cholecystokinin in determining postprandial insulin levels in man: effects of loxiglumide, a specific cholecystokinin receptor antagonist.

To estimate the contribution of postprandial cholecystokinin (CCK) responses to circulating insulin concentrations and insulin secretion, a specific CCK receptor antagonist (loxiglumide; 10 mg/kg body weight/h) or saline were infused intravenously in normal volunteers, beginning 90 min before insulin secretion was stimulated on separate occasions by the intraduodenal administrations of glucose, glucose and protein, and glucose plus protein with the admixture of pancreatin. The release of CCK (radioimmunoassay) was stimulated by the protein component of the nutrients from basal 2.4 +/- 0.4 to 8.0 +/- 1.2 pmol/l. CCK plasma levels were significantly higher with loxiglumide (p < 0.05). Glucose-dependent insulinotropic polypeptide (GIP) was also released by all nutrient mixtures. Loxiglumide significantly inhibited the amount of bilirubin and pancreatic enzymes recovered from duodenal aspirates. In contrast, in none of the experiments, C-peptide increments and hence insulin secretion rates were altered by loxiglumide. With glucose and protein as intraduodenal stimulus (no pancreatin added), the plasma amino acids rose significantly less (by approximately 50% of the control experiment) and the increment in insulin (but not C-peptide) concentrations was significantly reduced by loxiglumide. This is most likely explained by a change in insulin metabolic clearance. This effect cannot be a primary action of CCK because there was no similar effect of loxiglumide with the same intraduodenal stimulus plus added pancreatin. Pancreatic enzymes reduced maldigestion secondary to loxiglumide effects on pancreatic exocrine secretion: The increment in circulating amino acid concentrations was similar with and without loxiglumide. In conclusion, CCK does not alter insulin secretion and, therefore, is not an incretin hormone in man. Blocking CCK actions on the exocrine pancreas by loxiglumide, however, can secondarily cause reductions in postprandial insulin profiles by altering insulin clearance. These changes are possibly related to reductions in circulating amino acid concentrations.

Adult↗
PubMed1990

[Drug residues in food fish].

The present paper reviews different possibilities of pharmacolegal residues in fish. Sometimes the treatment of fish with registered drugs in therapeutical dosage is provable in spite of keeping the withdrawal time. To that experiences of the persistence and values of Chloramphenicol, Chlortetracycline and Furazolidone proved after therapeutical treatment in fish correlated to the water temperature are compared with results of experiments documented in literature. Investigations on the residues of Enrofloxacin after application of different doses to rainbow trout were carried out. Sometimes the proof of drug residues in fish can be done without an advanced treatment. The recontamination of fish with drugs or their metabolites in environment is discussed as a possibility for drug residues. The carry-over-effect of drug during the animal food production can be also the reason for residues in fish. Experiments with Chloramphenicol contaminated feed in rainbow trout show residues in muscle of fish higher than 10 ppb during the feeding period. Finally the results of residues different drug used in fish--given in literature--are collected in two tables.

Animals↗