Experiencing communication related to knowing the cancer diagnosis and prognosis: A multi-perspective interpretative phenomenological study.

PURPOSE: To understand the phenomenon of communication related to knowing the diagnosis and prognosis, by exploring the perspectives of patients with advanced cancer and those of their caregivers, physicians and nurses. METHODS: Drawing upon a multi-perspective design, a total of 27 semi-structured interviews involving four different groups of stakeholders (7 patients, 7 caregivers, 6 physicians, and 7 nurses) -who were linked by a carer-cared relationship-were conducted in two Oncology Departments of two Italian hospitals. Interpretative Phenomenological Analysis was used to interpret the participants' narratives. RESULTS: Two overarching themes were identified: The first theme "the «what is it?¼ and the «what will happen to me?¼" illustrates the two different paths of communication of diagnosis and prognosis. The second theme "Matching and mismatching in identifying the others as speakers" shows that not each of the four parties recognizes the others as reciprocal speakers on topics related to diagnosis and prognosis, although all of them display reciprocal communication interactions. CONCLUSIONS: Communication related to diagnosis and prognosis is often handled by health professionals without a comprehensive and integrated understanding of the communication approach. There is a correspondence between the nurses' perception of their extraneousness to the diagnosis and the prognosis related communication, and the descriptions and perceptions of the nurse's role reported by the other participants. Understanding how the different groups of stakeholders reciprocally interact and influence each other, can help to identify potential positive resources and detect hindrance in the implementation of an effective patient-centered approach, while avoiding silo cultures.

Ethical perspectives in communication in cancer care: An interpretative phenomenological study.

BACKGROUND: In cancer care, many clinical contexts still lack a good-quality patient-health professional communication about diagnosis and prognosis. Information transmission enables patients to make informed choices about their own healthcare. Nevertheless, disclosure is still an ethically challenging clinical problem in cancer care. High-quality care can be achieved by understanding the perspectives of others. The perspective of patients, their caregivers, physicians and nurses have seldom been simultaneously studied. OBJECTIVE: To investigate the phenomenon of diagnosis and prognosis-related communication as experienced by patients, their caregivers, and both their attending nurses and physicians, to enlighten meanings attached to communication by the four parties. METHODS: A qualitative study using interpretative phenomenological analysis was performed. PARTICIPANTS AND RESEARCH CONTEXT: Purposive sampling of six patients, six caregivers, seven nurses and five physicians was performed in two oncological hospitals in Italy. ETHICAL CONSIDERATIONS: Local Ethics Committee approved the study. It was guided by the ethical principles of voluntary enrolment, anonymity, privacy and confidentiality. RESULTS: Three main themes were identified: (a) the infinite range of possibilities in knowing and willing to know, (b) communication with the patient as a conflicting situation and (c) the bind of implicit and explicit meaning of communication. CONCLUSION: The interplay of meanings attached by patients, their caregivers, and their attending oncologist and nurse to communication about diagnosis and prognosis revealed complexities and ambiguities not yet settled. Physicians still need to solve the ethical tensions in their caring relationship with patients to really allow them 'to choose with dignity and being aware of it'. Nurses need to develop awareness about their role in diagnosis and prognosis-related communication. This cognizance is essential not just to assure consistency of communication within the multi-disciplinary team but mostly because it allows and enables the moral agent to take its own responsibilities and be accountable for them.

Antigenic peptide molecular recognition by the DRB1-DQB1 haplotype modulates multiple sclerosis susceptibility.

Multiple sclerosis (MS) is an autoimmune disease of the central nervous system that has a notably high incidence in Sardinia. Our study focuses on two HLA class II haplotypes associated with the disease in Sardinia, the rare predisposing DRB1*15:01-DQB1*06:02 and the widespread protective DRB1*16:01-DQB1*05:02. This framework enabled the highlighting of HLA binding pocket specificity and peptide recognition mechanisms by employing molecular dynamics simulations of the whole DRB1-DQB1 haplotype interacting with MBP- and EBV-derived peptides. We analyzed peptide-protein interaction networks and temporal evolution of the original complexes and after key amino acid mutations. The mutation G86V of the protective DRB1 allele exerted its effect mainly in the presence of the EBV viral peptide, with local and long range outcomes. However, the V38A mutation of the protective DQB1 showed a long range effect only in the case of the MBP myelin peptide. Our findings also demonstrate a DRB1/DQB1 complementary molecular recognition of peptides. This mechanism could provide a robust synergistic action and a differential role of DRB1 and DQB1 in tissues and in the time-steps towards autoimmunity. In addition, we demonstrate that negatively charged residues in pockets 4 and 9 play a role in MS susceptibility. Our findings are supported by recent experiments using a closely related MS animal model. Overall, our analysis confirms the role of the DRB1-DQB1 haplotype in conferring disease predisposition and could provide a valuable aid in designing optimal therapeutic peptides for MS therapy.

Comparative performance of three TSE rapid tests for surveillance in healthy sheep affected by scrapie.

Rapid tests specific for sheep and goats became part of European Union-wide active scrapie surveillance in 2006. Performance of three approved TSE rapid tests for the detection of sheep infected with scrapie in field cases in the pre-clinical stage of the disease was compared. The medulla oblongata of 969 asymptomatic sheep of various genotype and breed aged over 18 months from 23 Italian flocks affected with scrapie, were tested by the Bio-Rad TeSeE Sheep/Goat (A), the IDEXX HerdChek BSE-Scrapie Antigen Test Kit, EIA (B) and the Prionics(®)-Check Western Small Ruminant (C) rapid tests. Of 136 positive samples of classical scrapie, as confirmed by Western blot assay, 132 were positive with test A (Se 97.06%, CI 95% 92.64-99.19); 135 with test B (Se 99.26%, 95% CI 95.97-99.98) and 128 with test C (Se 94.12%, 95% CI 88.74-97.43). Tests A and B showed the best performance on analytical sensitivity. All three systems demonstrated good reproducibility: being the intrarater and interrater kappa coefficients always over 0.83. The one available atypical scrapie sample was positive with tests A and B, negative with test C. Considering the discrepant results in the detection of low PrP(sc) concentrations and of the atypical case, differences can be expected in the efficacy of an active surveillance system, depending on the test adopted.