The kinetics of change in cytokine production by CD4 T cells during conventional allergen immunotherapy

BACKGROUND

The effect of conventional allergen immunotherapy on allergen-specific T lymphocyte cytokine production is incompletely understood, particularly during the initial phase of treatment.

OBJECTIVE

The purpose of this study was to prospectively follow the kinetics of change in CD4(+) T cell cytokine secretion during the course of conventional immunotherapy.

METHODS

Six allergic individuals were treated with extracts of Dermatophagoides farinae/Dermatophagoides pteronyssinus or with rye grass pollen (Lolium perenne) allergen, but not both, by using an internally controlled conventional immunotherapy protocol. CD4(+) T cells from peripheral blood were examined in vitro at varying intervals after the initiation of immunotherapy by stimulation with D farinae or L perenne group I antigen. The quantity of IL-4 and IFN-gamma produced and its relationship to clinical improvement was determined.

RESULTS

The ratio of allergen-specific IL-4/IFN-gamma production by CD4(+) T cells from 4 of 6 individuals receiving immunotherapy greatly increased during the period when the dose of allergen was increasing. However, after high-dose maintenance therapy was achieved, this ratio decreased in subjects responding clinically to, but not in those failing, immunotherapy. In addition, late-phase skin reactions and allergen-specific IgE levels in responding, but not in nonresponding, subjects diminished over the course of immunotherapy.

CONCLUSION

Conventional immunotherapy may initially exacerbate allergic disease by increasing allergen-specific IL-4 and allergen-specific IgE production. Later clinical improvement is associated with a reduction in allergen-specific IL-4 production and in allergen-specific serum IgE.

Physical and psychological needs of patients dying from colo-rectal cancer

Sixty-one patients suffering from terminal colo-rectal cancer were interviewed in depth by trained research nurses. The nurses used a semistructured interview, a concerns checklist and the Psychiatric Assessment Schedule to determine patients' key physical complaints, their main concerns and whether or not an affective disorder was present. The interviewers' estimates of these aspects were then compared with the assessments of 48 carers and 58 general practitioners (GPs). The congruence between patients' and carers' reports was reasonable for appetite loss (77%), nausea and vomiting (75%) and pain (72%), and the rate of false positive reporting was low. However, there was much less congruence for breathlessness (48%) and pyrexia (32%). There was even less congruence between the estimates of patients' physical symptoms and GPs' perceptions. The highest congruence was for pain (42%). The congruence was low for appetite loss (8%) and breathlessness (5%). The congruence between patients' and carers' perceptions of the patients' major concerns was low, being at best 33% for patients' concerns about their physical illness. The rate of false positive reporting by carers was high. The carers' major concerns included the patients' illness (47%), the future (33%) and the emotional demands being put on them (23%). Thirteen (22%) of the 59 patients completing a full interview were suffering from an affective disorder. This had been recognized by the GP in only five cases and six patients who had a normal mood were wrongly diagnosed as being depressed. Of the carers interviewed, 22 (46%) considered symptom control had been inadequate and 23 (48%) felt they had no relief from the burden of caring or had too little help. Sixteen (33%) had recently suffered from a major depressive illness, generalized anxiety disorder or adjustment disorder. It is concluded that it is unreliable to rely on carers' proxy reports of the symptoms experienced by terminally ill patients; more accurate personal assessments are needed where possible. It is likely that this will only be achieved by ensuring that those health professionals involved in palliative care have training in the relevant assessment skills.

Randomised controlled trial of effects of early discharge after surgery for breast cancer

OBJECTIVE

To determine the effect of early discharge from hospital after surgery for breast cancer on physical and psychological illness.

DESIGN

Randomised controlled trial comparing discharge two days after surgery (before removal of drain) with standard management (discharge after removal of drain).

SETTING

Regional breast unit.

SUBJECTS

100 women with early breast cancer undergoing mastectomy and axillary node clearance (20) or breast conservation surgery (80).

MAIN OUTCOME MEASURES

Physical illness (infection, seroma formation, shoulder movement) and psychological illness (checklist of concerns, Rotterdam symptom questionnaire, hospital anxiety and depression scale) preoperatively and at one month and three months postoperatively.

RESULTS

Women discharged early had greater shoulder movement (odds ratio 0.28 (95% confidence interval 0.08 to 0.95); P = 0.042) and less wound pain (odds ratio 0.28 (0.10 to 0.79); P = 0.016) three months after surgery compared with women given standard management. One month after surgery scores were significantly lower on the Rotterdam symptom questionnaire in patients who were discharged early (ratio of geometric mean scores 0.73 (0.55 to 0.98) P = 0.035), but rates of psychological illness generally did not differ between groups.

CONCLUSIONS

Increased rates of physical or psychological illness did not result from early discharge after surgery for breast cancer. This policy can be recommended for patients with support at home.

The relationship between patients' concerns and psychological distress in a hospice setting

A total of 87 patients admitted to two hospices during a 9 month period were assessed by trained nurses to determine their current concerns. These assessment interviews were tape recorded. A trained researcher then administered a semi structured concerns interview using the Concerns Checklist, the Hospital Anxiety and Depression Scale and the Spielberger State Anxiety Inventory. Patients reported an average of 6.5 concerns. Concerns about loss of independence and the family were most common. Although a third of the patient sample died within a short time after the interview, concerns about cancer, the future and dying were infrequent. Using a threshold score on the Hospital Anxiety and Depression Scale of > 19 to allow for the effect of disease, 17% of the sample were judged to be probable cases of clinical anxiety and/or depression. There was a strong association between the number of concerns patients experienced and psychological distress (p < 0.001). Concerns about pain and treatment were particularly associated with anxiety whereas concerns about disability were linked with depressed mood. Concerns about cancer were linked with both anxious and depressive changes in mood (p < 0.001). The study highlights the diverse nature of hospice patients' concerns and shows a clear link between psychological distress and number of concerns expressed by patients.

Breaking bad news

The way in which news about a cancer diagnosis or recurrence is broken can have a profound effect on the patient's psychological wellbeing. When the information given is perceived by the patient as too much to too little and resultant concerns remain undisclosed and unresolved there is a high risk that the patient will develop clinical anxiety and/or depression. Guidelines are provided, therefore, to help them appropriately. Strategies are also suggested which will allow the patient's concerns to be elicited in an efficient but caring manner.

Cerebral metabolic changes (18F-FDG PET) during selective anterior temporal lobe amobarbital test

Cerebral glucose utilisation using 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) was measured in 4 patients with temporal lobe epilepsy during a selective anterior temporal lobe (TL) amobarbital test (ATLAT) and compared with their baseline values. 18F-FDG was injected intravenously immediately after administration of amobarbital into the anterior choroidal artery (acha) in the case of the superselective ATLAT and into the territories of acha, posterior communicating artery, and ophthalmic artery in the case of the ATLAT using the temporary balloon occlusion technique. A decrease in glucose uptake as a result of amobarbital application was observed in ipsilateral temporolateral (4 patients), ipsilateral temporomesial (2 patients) and bilateral frontolateral (1 patient) cortices. All patients showed decreased glucose uptake in contralateral temporolateral regions. Cerebellar diaschisis was observed in 2 patients. In conclusion, although aimed at selective inactivation of the mesiobasal TL structures, the ATLAT does not result in exclusive selective glucose hypometabolism of these structures. Relatively widespread ipsilateral and contralateral effects were observed suggesting local and remote metabolic deafferentation. No association was observed between the glucose uptake, clinical or memory performance.

Thalamic glucose metabolism in temporal lobe epilepsy measured with 18F-FDG positron emission tomography (PET)

Thalamic glucose metabolism has been studied in 24 patients suffering from temporal lobe epilepsy (TLE) using interictal 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET). A total of 17 patients had a unilateral TL seizure onset, 11 of these patients had a mesial temporal lobe epilepsy syndrome (MTLE), with mesial gliosis and a mesial TL seizure origin. Three patients had a lateral TL seizure origin, and 3 patients had mesial TL tumors. Bilateral TLE was assumed in 7 patients. Only in the patient group with MTLE (n = 11), the ipsilateral thalamic glucose uptake showed a statistically significant lower value when compared to the thalamus of the contralateral side (Wilcoxon paired sign test, P = 0.012). There was a more pronounced hypometabolism in right TLE compared to left TLE. A 'hypersynchronous seizure onset pattern' in ictal EEG was only seen in 6 (26%) patients (1 patient with bilateral, 5 with unilateral TLE). No correlation existed between the thalamic, temporal glucose metabolism and the 'hypersynchronous seizure onset pattern'.

Disclosure of concerns by hospice patients and their identification by nurses

As part of an evaluation of the training of hospice nurses in communication skills, the selectivity of patients in disclosing their concerns and the ability of nurses to register all the concerns disclosed were studied. Forty-two nurses were recruited from two hospices in the north of England. They were asked to determine and write down patients' current concerns before and after training, and nine months later. Their interviews were tape recorded to permit rating of the concerns disclosed. After each interview a research nurse used a semistructured interview and the Concerns Checklist to elicit patients' concerns. The Spielberger State Anxiety Scale and Hospital Anxiety and Depression Scale were then administered to assess patients' mood. In total, 87 patients were thus assessed. Patients were highly selective in what they disclosed and showed a strong bias towards disclosing physical symptoms. Overall, 60% of concerns remained hidden and concerns about the future, appearance and loss of independence were withheld more than 80% of the time. Patients who were more anxious or depressed were less likely to disclose concerns. The nurses registered only 40% of the concerns disclosed to them at interview, and less than 20% of patients' concerns were identified appropriately. The nurses were selective in the categories of concerns that they registered. Pain, family worries, appetite and weight loss, nausea and vomiting were noted most frequently, while concerns about cancer, bowel function, treatment and emotional worries were not registered. The patients' main concern was identified and recorded in only 45% of cases. Overall, it was found that hospice patients selectively disclosed physical symptoms while nurses did not elicit or register patients' concerns accurately. Nurses therefore need to improve their ability to elicit and register all of their patients' concerns and to pay particular attention to those who are anxious and depressed.

Positron emission tomography and fluorodeoxyglucose studies of metabolic hyperfrontality and psychopathology in the psilocybin model of psychosis

The effects of the indolehallucinogen psilocybin, a mixed 5-HT2 and 5-HT1 agonist, on regional cerebral glucose metabolism were investigated in 10 healthy volunteers with PET and [F-18]-fluorodeoxyglucose (FDG) prior to and following a 15- or 20-mg dose of psilocybin. Psychotomimetic doses of psilocybin were found to produce a global increase in cerebral metabolic rate of glucose (CMRglu) with significant and most marked increases in the frontomedial and frontolateral cortex (24.3%), anterior cingulate (24.9%), and temporomedial cortex (25.3%). Somewhat smaller increases of CMRglu were found in the basal ganglia (18.5%), and the smallest increases were found in the sensorimotor (14.7%) and occipital cortex (14.4%). The increases of CMRglu in the prefrontal cortex, anterior cingulate, temporomedial cortex, and putamen correlated positively with psychotic symptom formation, in particular with hallucinatory ego disintegration. The present data suggest that excessive 5-HT2 receptor activation results in a hyperfrontal metablic pattern that parallels comparable metabolic findings associated with acute psychotic episodes in chronic schizophrenics and contrasts with the hypofrontality in chronic schizophrenic patients.

Metabolic hyperfrontality and psychopathology in the ketamine model of psychosis using positron emission tomography (PET) and [18F]fluorodeoxyglucose (FDG)

To date, the ketamine/PCP model of psychosis has been proposed to be one of the best pharmacological models to mimic schizophrenic psychosis in healthy volunteers, since ketamine can induce both positive and negative symptoms of schizophrenia. At subanesthetic doses, ketamine has been reported to primarily block N-methyl-D-aspartate (NMDA) receptor complex giving support to a glutamate deficiency hypothesis in schizophrenia. Positron emission tomography was used to study ketamine-induced psychotic symptom formation in relation to cerebral metabolic alterations in healthy volunteers. Our study shows that NMDA receptor blockade results in a hyperfrontal metabolic pattern. Increased metabolic activity in the frontomedial and anterior cingulate cortex correlated positively with psychotic symptom formation, in particular with ego pathology. Analysis of correlations between syndrome scores and metabolic rate of glucose (CMRglu) or metabolic gradients (ratios) revealed that each psychopathological syndrome was associated with a number of metabolic alterations in cortical and subcortical brain regions, suggesting that not a single brain region, but distributed neuronal networks are involved in acute psychotic symptom formation.

The development of a training model to improve health professionals' skills, self-efficacy and outcome expectancies when communicating with cancer patients

Health professionals such as doctors and nurses are in a key position to help reduce the high prevalence of affective disorders and psychological problems experienced by cancer patients. This role, however, is inhibited by ineffective communication practices which include the use of distancing strategies and avoidance by the health professional. A number of contributory factors such as skill deficits and anxiety about negative consequences for the patient and the health professional have been identified in previous research and brief problem-focused training workshops developed to address these factors with only limited success. Researchers in applied psychology have recommended that the development of training programmes and their evaluation are based upon approaches which take into account cognitive and affective factors as well as change in skills. The aim of this paper is to develop a conceptual model of communication behaviour in the cancer setting. The model aims to take account of the role that knowledge and skill deficits, self-efficacy and outcome expectancy beliefs and perceived support plays in the ability and willingness of health professionals to assess their patients' concerns. It has been applied to guide the development of a revised approach to brief, problem-focused workshops for health professionals. It also allows a systematic and multi-dimensional evaluation of training outcomes. Preliminary results indicate this is a promising area of communications research.

Improving physician-patient communication in cancer care: outcome of a workshop for oncologists

BACKGROUND

Physicians caring for cancer patients receive little formal training in difficult communications such as breaking bad news, discussing life support, and addressing patients' emotional concerns.

METHODS

The authors conducted a three-day workshop in communication skills for nine oncology attendings and three fellows. Topics for the workshop were selected by participants by a pre-workshop questionnaire. Small groups of four to five participants interviewed simulated patients who role-played scripts based on the selected topics. Sessions on self-awareness and one on planning for continuing the work of the group after the workshop were included.

RESULTS

Responses to pretest and posttest questionnaires showed that the workshop increased the participants' confidence in a number of communication areas and also in managing physician burnout. Process issues such as patient death and expectations for cure were also discussed.

CONCLUSION

Interactive workshops offer a promising way of teaching communication skills and aspects of the physician-patient relationship to oncologists. Conclusions regarding outcome, however, are preliminary and tentative, and long-term results are uncertain.

Helping health professionals involved in cancer care acquire key interviewing skills--the impact of workshops

To assess the impact of workshops on key interviewing skills, 169 health professionals involved in cancer care interviewed a simulated patient immediately before and after the workshops and 6 months later. Each interview was audiotaped, transcribed and rated by trained raters using a newly developed rating system which permits an utterance by utterance analysis. The workshops led to significant increases in the use of three behaviours which promote patient disclosure of key concerns. Namely, open directive questions, questions with a psychological focus and clarification of psychological aspects. However, there was no increase in the use of educated guesses and empathic statements which promote disclosure of key problems and feelings. There were significant reductions in behaviours which inhibit disclosure including the use of questions with a physical focus, utterances clarifying physical aspects and the giving of advice prematurely. These significant gains were still evident 6 months later, but there had been some decline over time. There were also significant improvements in the ability of health professionals to elicit patients key problems. Before the workshop, 75 (44%) participants were able to identify at least 60% of their patients' main problems (a criterion of clinical competence) compared with 119 (70%) at 6-month follow-up, an increase in numbers of 59%. Before training, health professionals used as many behaviours which inhibit disclosure as those that promote it. This was unaffected by their professional discipline, prior training or age. It highlights the need for health professionals involved in cancer care to have training in these communication skills. We believe that more intensive group work in smaller groups which focuses on the feelings and attitudes of participants as well as their interviewing behaviour would lead to an increase in the use of educated guesses and empathy and better exploration of patients' feelings.

Maladaptive coping and affective disorders among cancer patients

Coping has attracted much attention in research as a possible mediator of the psychological impact of cancer. Yet, conceptual ambiguity and methodological limitations have resulted in weak and contradictory findings. A major shortcoming has been the use of designs which do not represent adequately the complexity or the diversity of demands which arise from the diagnosis and treatment of cancer. The neglect of appraisal in the assessment of the relationship between coping and mental health is of particular concern, given the role it has been found to play in the onset and maintenance of affective disorders. In a prospective study 673 newly diagnosed cancer patients were interviewed 4 to 8 weeks and 1 year later to assess the effects of their appraisals, coping responses and resolution of any concerns on subsequent mental health. Logistic regression analyses, adjusted for possible confounding variables, were used to investigate the relationships between coping variables and affective disorders. When examined separately the degree of threat appraised, the reporting of a helpless response and perceived success of primary responses in resolving concerns all predicted subsequent effective disorder. However, in a multivariate model only appraisal and success of the response in resolving the concern were significant. No response was found to prevent affective disorders, however certain types of responses were associated with the resolution of specific concerns. The results highlight the importance of assessing the whole coping process and the need to address the complex and multifaceted characteristics of cancer demands. On the basis of our findings we describe a maladaptive cycle of coping, which we believe contributes to the later onset of affective disorders in cancer patients.

Training hospice nurses to elicit patient concerns

Patient assessment underpins every aspect of nursing care. However, there is much evidence to suggest that many nurses lack the skills necessary to communicate effectively with their patients, and so assess their individual problems and concerns. Communication studies to date have been descriptive, or have concentrated on acquisition of skills without addressing the impact this has on patient care. This paper reviews a study of 44 hospice nurses who were taught assessment skills. It discusses the impact of training not only on their skill level, but also on their ability to elicit their patients' concerns. It concludes that simple skills training is insufficient to change clinical behavior, and discusses other factors which should be addressed in future training programmes.

Helping cancer patients disclose their concerns

Health professionals are reluctant to enquire actively about cancer patients' concerns and feelings. They fear that probing will damage patients psychologically and believe they have had insufficient training in the relevant interviewing skills. In considering how their interviewing skills might be improved, the key question is which interviewing behaviours promote patient disclosure and which inhibit it. To test our predictions about the utility of specific interviewing behaviours, we asked 206 health professionals, who were attending workshops on communication and counselling skills, to interview a simulated patient before and after the workshop to establish the patient's current problems. They were given 20 min to do this and the interviews were tape-recorded and transcribed to permit detailed assessment by trained raters using an utterance by utterance analysis. This permitted the form, function, content and emotional level of each utterance to be rated. Correlation coefficients were calculated between specific interviewing behaviours and patient disclosure of significant information. Significant information was defined as any information disclosed by patients about their perceptions of their illness or prognosis or any adverse physical, psychological or social sequelae of their cancer and treatment. Spearman correlation coefficients were calculated between specific interviewing behaviours and patient disclosure. The use of these behaviours by those 41 (20%) of interviewers who achieved most disclosure was compared with those 41 (20%) who obtained least disclosure. Patient disclosure of significant information was promoted by the use of open directive questions, focusing on and clarifying psychological aspects, empathic statements, summarising and making educated guesses. The use of leading questions, focusing on and clarifying physical aspects, moving into advice and reassurance mode inhibited patient disclosure. Inhibitory behaviours were used 2-3 times more frequently before training than facilitative ones. Training of health professionals involved in cancer care should, therefore, ensure they acquire these positive skills and relinquish the inhibitory behaviours.