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P Cazal

Publications and source records attributed to P Cazal.

At least 19 recordsLinked to original sources

[The laboratory of tomorrow. Particular reference to hematology].

UNLABELLED: A serious prediction can only be an extrapolation of recent developments. To be exact, the development has to continue in the same direction, which is only a probability. Probable development of hematological technology: Progress in methods. Development of new labelling methods: radio-elements, antibodies. Monoclonal antibodies. Progress in equipment: Cell counters and their adaptation to routine hemograms is a certainty. From analyzers: a promise that will perhaps become reality. Coagulometers: progress still to be made. Hemagglutination detectors and their application to grouping: good achievements, but the market is too limited. Computerization and automation: What form will the computerizing take? What will the computer do? Who will the computer control? What should the automatic analyzers be? Two current levels. Relationships between the automatic analysers and the computer. ADVANTAGES: rapidity, fidelity and above all, reliability. Memory: large capacity and easy access. Disadvantages: conservatism and technical dependency. How can they be avoided? Development of the environment: Laboratory input: outside supplies, electricity, reagents, consumables. Samples and their identification. Output: distribution of results and communication problems. Centralization or decentralization? CONCLUSIONS: What will tomorrow's laboratory be? 3 hypotheses: optimistic, pessimistic, and balanced.

Autoanalysis

[The SAG solution].

Explore the source record for details and available documents.

Blood Preservation

Recommendations of the task force on record-keeping and blood distribution systems.

The objectives of an automated donor record system are reviewed and recommendations as to file content and structure of a computer-based system are outlined. Four sections are suggested, data related to donor identification, demography, date of last donation and special services requirements. Alternative means of data entry and donor-donation links are discussed as well as desirable capabilities of unit record and patient record systems. Two types of blood distribution systems are outlined, namely the reactive type where hospital blood bank inventories are replenished on demand and the predictive type where inventory requirements are predicted in advance and inventories are replenished on a fixed, previously agreed on schedule.

Blood Banks

[The role of immigration in the geographic distribution of the HBs antigen].

The study of HBs antigen frequency among almost 130 000 donors,--according to their place of birth--,shows a significantly higher frequency among foreign residents. The general frequency represents the arithmetic average between that of natives and that of foreign residents. The distribution of ad and ay subtypes is analogous to that observed in the different native countries.

Blood Donors

[Family diffusion of HBs antigen].

Systematic investigation for HBs antigen and for HBs antibody in donors carrying HBs antigen evidenced a familial contamination more important in children and first cousins than in husband and wife which confirm various previous studies. Moreover, daughters and sisters of antigen carriers show an abnormaly high antigen frequency and especially an abnormally low antibody frequency.

Blood Donors

[Hepatitis B and ratio of masculinity].

Among families of blood donors from Languedoc, found to be chronic carriers of HBs antigens, the masculinity ratio of the siblings (number of boys compared to number of girls) calculated on 303 individuals is significantly higher (1,32) than that of the general population (1,05). This rise is still increased when considering only the families where the viral infection is present in the mother (1,73), whereas it is very low when in the father (1,09).

Blood Donors

[Age and sex of chronic carriers of HBs antigen among 130,000 blood donors].

The frequency of HBs antigen, using radioimmunology is studied in blood donors from Languedoc (70.894 men and 60.760 women are tested, between 18 and 60 years old). The frequency in man is found to be 0,6 %, except between 20 and 30 years whereas it reaches 1,0 %; the frequency in woman is 0,4 % except between 18 and 36 years where it is 0,4 %.

Age Factors