Delirium is a disturbance of consciousness and cognition that affects many terminally ill patients before death. It can manifest as confusion, hallucinations, and restlessness, all of which are known to be distressing to patients, families, and professional caregivers. Underlying the contemporary palliative care movement is a belief in the idea that a good death is possible; that dying can be made better for patients and families through the proper palliation of distressing symptoms and through proper attention to psychological, social, and spiritual issues that affect wellbeing at the end of life. Given that delirium is potentially disruptive to all that the good death assumes, i.e., mental awareness, patient-family communication, peace and comfort, the question was asked: What is the relationship between end-of-life delirium and the good death in hospice care? Ethnographic fieldwork was conducted at a freestanding residential hospice over a period of 15 months in a suburban community in eastern Canada. The research methods included participant observation (320 hours over 80 field visits), interviews with 28 hospice caregivers, and document analysis. The findings of this study provide an in-depth examination of the nature of caregiving relationships with patients and with families in end-of-life care. They illustrate how a commitment toward providing for the good death prevails within the cultural community of hospice, and how the conceptualization, assessment, and management of end-of-life delirium are organized within such a commitment. In this setting, experiences of conscious and cognitive change in dying are woven by hospice caregivers into a coherent system of meaning that is accommodated into prevailing scripts of what it means to die well. At the same time, delirium itself provides a facilitative context whereby processes of supporting families through the patient’s death are enabled. This study highlights the relevance of considering the contextual and cultural features of individual end-of-life care settings that wish to examine, and perhaps improve, the ways in which care of delirious patients and their families is provided.

Delirium is probably the most common presenting symptom of disease in old age. Delirium, as defined in DSM-IV, is a neuropsychiatric syndrome characterized by disturbance in attention and consciousness, which develops over a short period of time and where the symptoms tend to fluctuate during the course of the day. The overall aim was to increase knowledge about the risk factors and outcome of delirium in old patients with femoral neck fracture and to develop and evaluate a multi-factorial intervention program for prevention and treatment of delirium in these patients. In a prospective study of 101 consecutive patients with a femoral neck fracture, 29.7% were delirious before surgery and another 18.8% developed delirium postoperatively. Of those who were delirious preoperatively all but one remained delirious postoperatively. The majority of those delirious before surgery were demented, treated with drugs with anticholinergic properties (mainly neuroleptics), had had previous episodes of delirium and had fallen indoors. Patients who developed postoperative delirium had perioperative falls in blood pressure and seemed to have more postoperative complications, such as infections. Patients with preoperative delirium had a poorer walking ability on discharge compared to patients with postoperative delirium only. In a five-year prospective follow up study 30 out of 78 (38.5%) non-demented patients with a femoral neck fracture developed dementia. Twenty out of 29 (69%) who were delirious postoperatively developed dementia compared to 10 out of 49 (20%) who were not delirious during hospitalization (p<0.001). Twenty-one (72.4%) of those with postoperative delirium died within 5 years compared to 17/49 (34.7%) of those who remained lucid postoperatively (p=0.001). A non-randomized multi-factorial intervention study with the aim of preventing and treating delirium among patients with femoral neck fracture (n=49) showed that the incidence of delirium was significantly lower than reported in previously published studies. The incidence of other postoperative complications was also lower and a larger proportion of the patients regained independent walking ability and could return to their previous living conditions on discharge. A similar multi-factorial intervention program evaluated as a randomized controlled trial including 199 femoral neck fracture patients showed that fewer intervention patients than controls suffered postoperative delirium (56/102, 55% vs. 73/97, 75%, p=0.003). For intervention patients the postoperative delirium was also of shorter duration (5.0±7.1 days vs. 10.2±13.3 days, p=0.009). Eighteen percent in the intervention ward and 52% of controls were delirious after the seventh postoperative day (p<0.001). Intervention patients suffered from significantly fewer in-hospital complications, such as decubital ulcers, urinary tract infections, nutritional complications, sleeping problems and falls, than controls. Total postoperative hospitalization was shorter in the intervention ward (28.0±17.9 days vs. 38.0±40.6 days, p=0.028). In conclusion, pre- and postoperative delirium is common and seems to be associated with various risk factors, which require different strategies for prevention and treatment. Delirium is also associated with the development of dementia and a higher mortality rate. Multifactorial intervention programs can successfully be implemented and result in the reduction of delirium, fewer complications and shorter hospitalization.

Increasing numbers of older patients with cognitive impairment and disturbed behaviour are likely to present to acute care hospitals in the future. Nurses are not well disposed towards care due to safety and morale issues caused by knowledge deficits, job stress, oppressed group behaviours and ageist attitudes. Patient outcomes are often poor with multiple adverse events, long lengths of stay and levels of mortality. Disturbed behaviour may be caused by delirium, depression or other mental disorders and dementia or all. The research question addressed was “Can the instigation of a person-centred approach to care of patients with cognitive impairment and disturbed behaviour result in decreased nursing stress, improved patient care practices, outcomes and relatives’ satisfaction?” A conceptual framework incorporating the constructs of Person-Centred Care, the Integrated Structural Model of Human Behaviour and Practice Development informed the action research methods utilised. The processes of facilitation were used to undertake four action research cycles incorporating plans, actions, observations and reflections in one 25-bed acute aged care ward in a large tertiary referral hospital The first cycle involved setting up the study, recruitment of nurses and patients, gathering of baseline data and application of nonparticipant observational studies of the quality of nurse-patient interactions which served to inform the plan for interventions. The following three cycles demonstrated efforts to undertake those interventions through strategies to increase nursing empowerment and knowledge in the context of constant staff turnover and diversions that compromised support and participation. During the study there were few apparent adverse patient outcomes with significant improvements in patient analgesic administration, relatives’ satisfaction with care, nursing care practices involving the completion of a Communication and Care Cues form and nurses’ interactions with the patients. New care planning tools were developed that will enable ongoing activities for practice improvement. Conversely, there was a significant increase in the nurses’ stress levels when caring for hypoactive delirious patients, a trend towards more emotional exhaustion, high nursing turnover and increased sick leave rates. Nursing care practices were unchanged and the new care planning tools were not well utilised. Reflection on the implications and limitations of action research methods supported by practice development strategies in the dynamic, often chaotic environment experienced during the study, suggested that if there is an absence of hierarchical managerial sponsorship for such activities, then sustainable change is difficult. Therefore, it was shown that a person-centred approach to care of patients with cognitive impairment and disturbed behaviour using action research methods in this environment, can result in some enhanced nurse-patient interactions, patient care practices, outcomes and relatives’ satisfaction. However, progress is likely to be slow and time consuming. Further improvements require attention to the well-being status of the nurses through actions that generate feelings of empowerment through individual recognition, knowledge enhancement, adequate access to patient information and sufficient time to undertake their duties as equal members of the multidisciplinary team.

Diss. (sammanfattning) Umeå : Univ. / Härtill 4 uppsatser.

Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 4 uppsatser.

Akut förvirring är en kognitiv förändring som uppkommer plötsligt. Drabbade patienter upplevs exempelvis agiterade, rastlösa och apatiska. Patienter beskriver upplevelsen av akut förvirring som en abstrakt verklighet, vilket komplicerar vårdprocessen. Syftet var att beskriva sjuksköterskors erfarenhet kring vårdandet av akut förvirrade patienter. Metoden som användes var en litteraturstudie med systematisk ansats där databearbetningen inspirerades av kvalitativ innehållsanalys. Litteraturstudien visar att sjuksköterskor som möter akut förvirrade patienter på vårdavdelningar kan uppleva ökad tidspress och stress. Den akut förvirrade påverkar även övriga medarbetare och patienter, kräver mer resurser i form av övervakning och sjuksköterskor med rätt kompetens. Sjuksköterskor fokuserar på att bevara säkerheten för de akut förvirrade patienterna, detta uppmärksammas mer än människan bakom den akuta förvirringen. Sjuksköterskors förhållningssätt till de akut förvirrade blir att försöka få kontroll över patienterna genom olika strategier. Okunskap om akut förvirring visas genom att sjuksköterskor inte använder sig av vetenskapligt baserad kunskap. Prioritering blir nödvändigt för att effektivisera arbetet och för att sjuksköterskor ska kunna vara tillgängliga åt alla patienter - effektivisering av tid faller på bekostnad av akut förvirrade patienter. God kommunikation och medvetenhet om den åldersdiskriminering som förekommer är av vikt för att patienters upplevelser ska bli optimala och leda till minskat lidande vid akut förvirring. / Acute confusion is a cognitive impairment that occurs suddenly. Affected patients are for example perceived as agitated, restless and apathetic. Patients describe the experience of acute confusion as an abstract reality, this complicates the care process. The aim of this study was to describe nurses’ experience in the care of acutely confused patients. The method was a literature study with a systematic approach where the data processing was inspired by qualitative content analysis. The literature study shows that nurses who meet acute confused patients in wards may experience a lack of time and increased stress. The patient with acute confusion also affects other health careers and patients, requiring more resources in terms of monitoring and nurses with the right skill sets. Nurses are more focused on preserving the safety of the acutely confused patients than the person behind the acute confusion. Nurses’ attitudes towards the acutely confused patients are based on gaining control of the patients through various strategies. Unawareness of acute confusion is displayed by nurses’ inconsistency of the use of evidence-based knowledge. Prioritizing work is necessary to make the work more effective, it also helps the nurse to be at hand for all patients, although, managing and using time more effectively falls at the expense of the acutely confused patients. Good communication and awareness of the ageism that occurs is of importance so that the patients’ experiences become optimal and for reduction of suffering when in or after an acute confusion state.

Bakgrund: Intensivvårdsdelirium är ett akut debuterande psykiskt tillstånd som kännetecknas av ändrad medvetandenivå, nedsatt orienteringsförmåga, försämrade minnesfunktioner och avvikande beteende och varar från några timmar till några dagar. Orsaken till IVA-delirium är ofta en komplex kombination av flera faktorer. Behandling av IVA-delirium består av farmakologiska och icke-farmakologiska åtgärder. IVA-delirium är sammankopplas med ökad mortalitet, förlängd tid på intensivvårdsavdelningen och försämrad livskvalitet hos patienter. Syfte är att beskriva intensivvårdssjuksköterskors upplevelser av att vårda och kommunicera med patienter med intensivvårdsdelirium. Metod: En deskriptiv litteraturstudie med systematisk litteratursökning. Resultat: Studiens resultat består av två kategorier Krävande men givande och Behandling av akut delirium med subkategorier och beskriver intensivvårdssjuksköterskors upplevelser av vården, bedömning, behandling av och kommunikation med deliriösa patienter. Slutsats: Akut delirium hos kritiskt sjuka patienter är ett tillstånd som är obehagligt för både patienter och personal. Effektiv kommunikation är ett värdefullt instrument i prevention och behandling av delirium men kräver kunskap och tålamod från sjuksköterskor. Det finns ett behov av vidare forskning om standardiserade bedömningsinstrument och deras användning på intensivvårdsavdelningar i Sverige.

Systemic inflammation is thought to be an important driver in chronic neurodegeneration. During systemic infection, the inflammatory status of the periphery is communicated to the brain and conserved sickness behaviours initiated. However, in the context of dementia the same inflammatory stimulus might trigger delirium. Delirium is a severe, transient neuropsychiatric condition characterised by altered levels of arousal, inattention, cognitive deficits and psychoses. Delirium and systemic inflammation exacerbate the trajectory of pre-existing dementia, and are associated with increased risk of future dementia. Accumulating experimental studies suggest microglia are “primed” by chronic neurodegeneration, such that a subsequent inflammatory insult – central or systemic – induces an increased inflammatory response which manifests as exaggerated sickness behaviours. To date there have been no studies of microglial priming in the context of pure tau pathology, without amyloid pathology, and none investigating acute sickness behaviour in such a model. The overarching aim of this thesis is to address this gap in the literature and further our understanding of the interactions between systemic inflammation, neuroinflammation and neurodegeneration in the context of tauopathy. The P301S mouse over-expresses human mutant tau protein under the Thy1.2 promoter. It develops hyperphosphorylated and insoluble tau accumulations and progressive neuronal loss. Consequently, P301S mice develop progressive hind limb paralysis. This study identified the horizontal bar task, a test of motor control and coordination, conducted at weekly intervals from 8-22 weeks of age, as a non-invasive measure of disease progression. In addition, a detailed temporal profile of pathological hallmarks at 8, 9, 10, 11, 12, 16 and 20 weeks of age was determined. Key results presented here demonstrate progressive, superficial neuronal loss in the cortex of P301S mice, with associated astrogliosis and surprisingly this occurs in the absence of apparent cortical microgliosis. In stark contrast, there is progressive microgliosis in the spinal cord of P301S mice. On this background, lipopolysaccharide (LPS), a chemical moiety found on the outer surface of gram-negative bacteria, was used to mimic a systemic bacterial infection. P301S mice and C57BL/6 control mice were injected, at 10 or 16 weeks of age, intraperitoneally with 500 μg/kg LPS or saline and were monitored in the following hours and weeks. Acutely, P301S mice showed signs of an exaggerated, longer lasting sickness response. Importantly, exaggerated acute symptoms extended beyond those typically associated with sickness behaviour; LPS induced an exaggerated acute impairment of horizontal bar performance in P301S mice and not C57BL/6 mice – a function which is known to be impaired in P301S mice later in disease. Impairments were age-dependent in terms of timing of injection. These data suggest an interaction between acute infection and existing CNS vulnerability leading to acute neurological dysfunction that is not a feature observed in sickness in a normal animal. LPS-injected P301S mice also showed, again age-dependent, increased rate of decline in motor performance compared with controls. There was no evidence of microglial priming in P301S mice. LPS caused an acute increase in AT8-positive phospho-tau however this did not persist until end stage. At 22 weeks of age there was significant disease-associated cortical neuronal loss in the vehicle-injected P301S mice, and additional superficial cortical neuronal loss in LPS-injected P301S mice and control mice. There was significant IBA1-positive microgliosis in the spinal cord of P301S mice at end stage which was further increased in LPS-injected P301S mice. Taken together these data indicate a clear and clinically relevant interaction between systemic inflammation and tau-associated neuropathology with acute and long-term functional consequences. In the absence of evidence of microglial priming, future work will explore potential mechanisms.

Delirium is a severe neuropsychiatric syndrome, characterised by the acute onset of inattention, altered level of arousal, and other mental status abnormalities. Delirium is extremely common in acute stroke, affecting at least 1 in 5 such patients admitted to hospital. It is a serious complication of stroke, being associated with higher mortality, longer length of hospital stay and higher dependency at discharge. The pathophysiology of delirium is not completely understood, and there are no specific treatments. This thesis investigated the role of cortisol in the development of delirium after stroke and also investigated the role of delirium and of cortisol in the development of cognitive impairment in the 12 months after stroke. The thesis specifically investigated whether levels of cortisol in saliva are elevated in delirium and also whether there is a loss of the normal diurnal rhythm in delirium, evidenced by elevated afternoon salivary cortisol levels and reduced morning level to afternoon level ratio. The thesis also investigated whether cortisol levels are persistently elevated in the year after stroke in those who developed delirium and whether cortisol levels are associated with cognitive decline. Finally it investigated whether acute and/or chronic changes seen on Computed Tomography (CT) brain scans taken around the time of stroke onset are associated with the development of delirium after stroke A longitudinal cohort study was conducted in 95 participants aged 60 years or over, who were admitted to hospital with a clinically confirmed stroke. Participants gave informed consent, or proxy consent was obtained if they lacked capacity to consent. At baseline participants underwent brief cognitive testing and were then assessed for the presence of delirium, using DSM IV criteria, at regular intervals during the first two weeks after stroke. At each assessment a saliva sample was collected in the morning and in the afternoon, to measure cortisol. Participants were then visited at 1 month, 4 months and 12 months after stroke onset, at which point they were assessed for the presence of delirium, further saliva samples were taken and a cognitive test battery was completed. 26 (27%) participants developed delirium during the course of the study period. The study found elevated salivary cortisol levels in those with delirium at up to 4 months after stroke, but at 12 months there was no difference between the delirium and no delirium group. A loss of the diurnal rhythm was seen in those who developed delirium at 5 days after stroke, but the diurnal variation had returned to a normal pattern at follow-up. However, in a multivariate analysis, controlling for age, sex, stroke severity (NIHSS), current illness burden (APACHE II), chronic illness burden (CCI) and prior cognitive impairment (IQCODE), neither median salivary cortisol levels in the first two weeks after stroke, nor the ratio of morning to afternoon cortisol levels were independent predictors of delirium diagnosis, although median 9am cortisol approached significance (OR=0.95, 95% confidence interval (CI) 0.89-1.01, p=0.08). In a random effects logistic regression analysis, the probability of developing delirium decreased over time from stroke onset and increased per unit increase in salivary cortisol (nmol/L), however this effect was not statistically significant (OR 1.02, CI 0.84-1.19 P=0.70 for morning cortisol and OR 1.05, CI 0.82-1.25 p=0.46 for afternoon cortisol). Global cognition, measured by the MoCA, was significantly poorer in the delirium group at each time point throughout the 12 months after stroke. However, there was a trend towards improvement in MoCA scores in the whole cohort throughout the 12 month follow-up, with the exception of those who developed the most severe delirium. The presence of delirium at any point during the 12 month follow-up did not affect the rate of change of the MoCA scores over the 12 months after stroke. The presence of brain atrophy identified on admission CT brain scans was independently associated with delirium (OR 3.7, CI 1.15-11.88, p=0.02), however the presence of a visible acute or chronic stroke lesion and the presence of white matter lesions were not. Finally, those who developed delirium had a worse functional outcome, longer length of hospital stay and were more likely to require institutional care or a package of care at home, compared with those who did not develop delirium. This thesis has contributed to our understanding of the mechanisms and phenomenology of delirium after stroke, and has also highlighted areas for further research which will be required to unpick the complex pathophysiology of delirium.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Esta dissertação tem como objetivo principal o estudo da narrativa A Confissão de Lúcio, de Mário de Sá-Carneiro, através do estranho e seu duplo, na perspectiva freudiana. Além disso, os conceitos de eu e outro, na visão de Jacques Lacan. É realizado o estudo de alguns poemas e correspondências, bem como de fragmentos de outros textos em prosa do escritor português. Temas como: o desejo de morte, a angústia, o delírio, o amor e o gozo também são abordados. Destaca-se a importância da cidade de Paris que comparece na obra de Sá-Carneiro, como símbolo da modernidade / This dissertation has as main objective the study of narrative A Confissão de Lucio from Mário de Sá-Carneiro, through the strange and his double on freudian perspective. Moreover, the concepts of self and other, in the view of Jacques Lacan. It carried out a study of some poems and letters, as well fragments of other texts in prose from the portuguese writer. Topics such as: the desire for death, anguish, delirium, love and pleasure are also discussed. The study highlights the importance of Paris which appears in Sá-Carneiros fiction as a symbol of modernity