The food service at the Le Tremplin school (QC), which is managed by a non-profit organization including parents and members of the community, was evaluated in terms of its impact on the nutritional quality of the meals consumed by the students from the point of view of the prevention of cardiovascular diseases (CVDs) in children. This was done by comparing it with a traditional food service operated by a concessionnaire. On the nutritional level, the menus offered in the two schools were comparable: in both cases, they fell far short of meeting nutritional recommendations related to the prevention of CVDs. In other respects, the nutritional value of the meals consumed by the children differed according to the school. It was closer to meeting recommendations in the case of the Le Tremplin school. The results obtained show that the organization of the food service at the Le Tremplin school appears to favour a more adequate consumption of lipids and carbohydrates, as well as a more appropriate distribution of the different fatty acids in the food.

Cardiovascular Diseases↗

PubMedDate not supplied

[Algodystrophy of the foot after arterial surgery: microcirculation evaluation].

Explore the source record for details and available documents.

Blood Gas Monitoring, Transcutaneous↗

PubMedDate not supplied

The ECAT EXACT HR: performance of a new high resolution positron scanner.

OBJECTIVE: The ECAT EXACT HR is a newly designed CTI-Siemens PET scanner with high spatial resolution. Its physical performance with respect to resolution, count rate efficiency, and scatter was investigated and evaluated with phantom studies. MATERIALS AND METHODS: The new tomograph consists of three rings of 112 BGO block detectors (50 mm x 23 mm x 30 mm deep) each, covering an axial field of view of 15 cm with a patient port of 56 cm diameter. Each block is sawed into an 8 x 7 matrix giving 24 detector rings with 784 crystals each. RESULTS: Total sensitivity for a 20 cm cylinder phantom is 177 kcps/microCi/ml in two-dimensional (2D) mode and increases to 1.46 Mcps/microCi/ml in 3D mode. Count rate performance was investigated for different low energy discriminator thresholds. Smaller detector blocks improve noise equivalent counts by approximately 50% compared with the EXACT system both in 2D and in 3D mode. Scatter fractions vary in 2D from 0.09 to 0.13 for energy thresholds from 450 to 250 keV for line sources in a 20 cm diameter phantom. In 3D mode an increase of scatter by a factor of 3 is observed. Transaxial spatial resolution varies from 3.6 mm full width at half-maximal (FWHM) at the center to 4.5 mm FWHM tangentially and 7.4 mm FWHM radially at R = 20 cm. Average axial resolution changes from 4.0 mm FWHM at center to 6.7 mm FWHM at R = 20 cm. CONCLUSION: Due to its special properties, the EXACT HR can be equally applied to routine clinical brain and whole-body imaging and to noninvasive experimental studies of regional tracer concentrations in medium-sized animals.

Animals↗

PubMedDate not supplied

[Extrarenal clearance in HIV-infected patients with chronic kidney failure. Experience in a hospital center].

In HIV-infected patients with end-stage renal failure maintenance dialysis raises multiple problems, the most important of these being the quality and duration of life in these patients and the risk of contaminating other HIV negative patients under dialysis and/or members of the medical-nursing staff. In this study the results obtained in 14 patients treated in one single centre over a 5-year period are analyzed. Nine patients (group I) had end-stage renal failure consecutive to HIV-associated nephropathy: 5 died after 2 to 30 months (mean 9.2 +/- 5.2) of dialysis, while 4 patients were alive at the end of the study with a mean follow-up of 23.8 +/- 8.8 months (5 to 50). Five patients (group II) had end-stage renal failure consecutive to a nephropathy unrelated to HIV: only 1 female patient died 29 months after she was found to be seropositive; the remaining 4 patients were alive at the end of the study with a mean 47.5 +/- 5.5 months (33 to 58) of follow-up. Ten patients were found to have a less than 8 g/dl Hb anaemia which was corrected in the 4 patients who received recombinant human erythropoietin. Out of the 9 patients treated with zidovudine (300 mg/day) 6 had haematological side-effects. Throughout this study, there was no contamination of HIV negative patients or members of the medical-nursing staff. In these 2 groups, the survival of HIV positive patients dialysed for chronic renal failure seems to have been conditioned by the stage of HIV infection at the time when maintenance dialysis was instituted.

AIDS Dementia Complex↗

PubMedDate not supplied

[Radiological exploration of pulmonary systemic hypervascularization. Study of our results concerning 83 cases. Confrontation of the angiographic results with the existence of hemoptysis (author's transl)].

The authors present the results of selective bronchial and parietal arteriography of pulmonary systemic hypervascularization, in 83 cases. They emphasize the advantages of previous pulmonary venous angiography and overall aortography for the success of selective injections. Failures are evaluated at 6 to 7%. On occasions, a medullary branch was opacified. No medullary accidents were noted. The angiographic appearances of the lesions encountered are described. A comparative study of the angiographic results of non-tumoral acquired lesions was carried out in those patients with hemoptysis and in those who were free from them.

Adult↗