[Can narrative medicine be an answer to patient physician relationship teaching according to students' demand in medical education curricula?]. / L'enseignement de la médecine narrative peut-il être une réponse à l'attente de formation des étudiants à la relation médecin-malade ?

INTRODUCTION: Coming from literature and medicine and medical humanities north American seminars, narrative medicine has applied narratology for analyzing patients' discourse and has been taught during a decade. METHODS: At Paris Descartes School of Medicine a twenty-hour narrative medicine elective program including whole class lectures and writing and reading small group exercises for second year medical students has been assessed using satisfaction questionnaires. RESULTS: Although several students were uncomfortable with the first writing and reading exercises, the whole satisfaction scores demonstrate that this new program is very well appreciated even when students did not choose this program because they were interested with the patient physician relationship. These results have been confirmed when all students state this program should be continued and when half of them state this program should be offered to more students or made mandatory. DISCUSSION: The primary focus on literary characteristics of patients' and physicians' discourses, without ignoring psychoanalysis theory, has shown to be safe for young students. Writing exercises are encouraged but not mandatory, and reading is optional if ever they feel embarrassed after producing their own texts. Narrative medicine impact on students' attitudes and behaviors has now to be assessed before implementing new educational programs.

Effect of oversulfated dermatan sulfate derivatives on platelet aggregation.

We have investigated the effect on human platelet aggregation of native dermatan sulfate (DS) and three oversulfated DS derivatives with different sulfur contents, and compared it with that of unfractionated heparin. An inhibitory effect on collagen-induced platelet aggregation was observed only with unfractionated heparin at high concentrations, whereas no inhibitory effect was observed when arachidonic acid was used. Heparin was the most potent inhibitor of the thrombin-induced platelet aggregation in platelet-rich plasma (PRP), whereas the oversulfated DS had a higher potency than the native DS. All these glycosaminoglycans (GAGs) also inhibited thrombin-induced aggregation of washed platelets in the presence of antithrombin (AT) or heparin cofactor II (HCII) but not in their absence. Heparin was by far the most potent inhibitor of washed platelet aggregation in the presence of AT, whereas the inhibitory effects of the DS (native or oversulfated) were lower but dependent on the sulfur content. In the presence of HCII, DSb, a slightly oversulfated DS, had the highest inhibitory effect, whereas heparin and DSd, the most oversulfated derivative, had lower potencies in this case. These data suggest that the inhibition of thrombin-induced platelet aggregation by the oversulfated DS derivatives is related to their ability to potentiate thrombin inactivation by AT or HCII. Hence, the oversulfated DS derivatives may not have an effect per se on the inhibition of platelet aggregation. They may constitute a new class of anticoagulants with enhanced anticoagulant effects in comparison with the native DS, but with only minor side-effects of bleeding in comparison with heparin.