Est-il possible d'optimiser le traitement médicamenteux des patients âgés ?

Contexte: La polymédication, définie ici comme la prescription simultanée de M 4 médicaments, est fréquente chez les personnes de M 65 ans. Celle-ci peut s'accompagner d'une mauvaise adhérence aux traitements et provoquer des effets indésirables. Cette revue systématique a évalué l'efficacité des interventions visant à améliorer l'adéquation de la polymédication chez la personne âgée (M 65 ans) présentant deux maladies chroniques ou plus

XAFS Study of Cu(II) at the Water-Goethite (α-FeOOH) Interface

Cu(II) complexation at the water-goethite (α-FeOOH) interface was studied by XAFS, potentiometry, and sorption experiments. Thermodynamic data indicate that the initial Cu(II) sorption is not accompanied by release of a H+. As pH is raised, hydrolysis occurs, and a maximum of two H+ are released per sorbed ion. Sorption experiments also show that Cu(II) complexation is insensitive to variation in ionic strength, indicating inner-sphere Cu complexes. The Cu K-edge XAFS suggest that the Cu(II) surface complexes are Jahn-Teller distorted with an equatorial plane of oxygens at approximately 1.95 Å. At pH 5, no 2nd coordination shell is observed. However, at pH 8 there is a well-defined 2nd shell which is best modeled with two Cu atoms at 2.96 Å. The appearance of a 2nd coordination shell at higher pH is attributed to the formation of hydroxo-bridged Cu(II) surface polymers

Are role perceptions of residents and nurses translated into action?

Abstract Background Effective interprofessional collaboration (IPC) has been shown to depend on clear role definitions, yet there are important gaps with regard to role clarity in the IPC literature. The goal of this study was to evaluate whether there was a relationship between internal medicine residents’ and nurses’ role perceptions and their actual actions in practice, and to identify areas that would benefit from more specific interprofessional education. Methods Fourteen residents and 14 nurses working in internal medicine were interviewed about their role perceptions, and then randomly paired to manage two simulated clinical cases. The authors adopted a general inductive approach to analyze the interviews. They identified 13 different role components that were then compared to data from simulations. Descriptive and kappa statistics were used to assess whether there was a relationship between role components identified in interviews and those performed in simulations. Results from these analyses guided a further qualitative evaluation of the relationship between role perceptions and actions. Results Across all 13 role components, there was an overall statistically significant, although modest, relationship between role perceptions and actions. In spite of this relationship, discrepancies were observed between role components mentioned in interviews and actions performed in simulations. Some were more frequently performed than mentioned (e.g. “Having common goals”) while others were mentioned but performed only weakly (e.g. “Providing feedback”). Conclusions Role components for which perceptions do not match actions point to role ambiguities that need to be addressed in interprofessional education. These results suggest that educators need to raise residents’ and nurses’ awareness of the flexibility required to work in the clinical setting with regard to role boundaries

When Team Conflicts Threaten Quality of Care: A Study of Health Care Professionals' Experiences and Perceptions

Objectives: To explore professionals' experiences and perceptions of whether, how, and what types of conflicts affected the quality of patient care. Patients and Methods: We conducted 82 semistructured interviews with randomly selected health care professionals in a Swiss teaching hospital (October 2014 and March 2016). Participants related stories of team conflicts (intra-/interprofessional, among protagonists at the same or different hierarchical levels) and the perceived consequences for patient care. We analyzed quality of care using the dimensions of care proposed by the Institute of Medicine Committee on Quality of Health Care in America (safety, effectiveness, patient-centeredness, timeliness, efficiency, and equity). Results: Seventy-seven of 130 conflicts had no perceived consequences for patient care. Of the 53 conflicts (41%) with potential perceived consequences, the most common were care not provided in a timely manner to patients (delays, longer hospitalization), care not being patient-centered, and less efficient care. Intraprofessional conflicts were linked with less patient-centered care, whereas interprofessional conflicts were linked with less timely care. Conflicts among protagonists at the same hierarchical level were linked with less timely care and less patient-centered care. In some situations, perceived unsatisfactory quality of care generated team conflicts. Conclusion: Based on participants' assessments, 4 of 10 conflict stories had potential consequences for the quality of patient care. The most common consequences were failure to provide timely, patient-centered, and efficient care. Management of hospitals should consider team conflicts as a potential threat to quality of care and support conflict management programs