The biological correlates of psychological responses to breast cancer

Illness Denial in Medical Disorders: A Systematic Review

INTRODUCTION

Illness denial pertains to medical patients who do not acknowledge the presence or severity of their disease or the need of treatment.

OBJECTIVE

This systematic review was performed to clarify the clinical role and manifestations of illness denial, its impact on health attitudes and behavior, as well as on short- and long-term outcomes in patients with medical disorders.

METHODS

The systematic search according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines was conducted on PubMed, Scopus, and Web of Science.

RESULTS

The initial search yielded a total of 14,098 articles; 176 studies met the criteria for inclusion. Illness denial appeared to be a relatively common condition affecting a wide spectrum of health attitudes and behavior. In some cases, it may help a person cope with various stages of illness and treatment. In other situations, it may determine delay in seeking treatment, impaired adherence, and reduced self-management, leading to adverse outcomes. The Diagnostic Criteria for Psychosomatic Research (DCPR) were found to set a useful severity threshold for the condition. An important clinical distinction can also be made based on the DCPR for illness denial, which require the assessment of whether the patient has been provided with an adequate appraisal of the medical situation.

CONCLUSIONS

This systematic review indicates that patients with medical disorders experience and express illness denial in many forms and with varying degrees of severity. The findings suggest the need for a multidimensional assessment and provide challenging insights into the management of medical disorders.

Can we make a portrait of women with inoperable locally advanced breast cancer?

INTRODUCTION

Delay between clinical presentation and treatment of breast cancer (BC) can significantly impact mortality. We aimed at drawing a picture of women with locally advanced breast cancer (LABC) treated at our Breast Unit and at investigating factors associated with treatment delay.

MATERIAL AND METHODS

A retrospective descriptive analysis, using a specific 28-item semi-structured questionnaire, was conducted in 67 patients diagnosed with T4 BC.

RESULTS

Nearly a third of our patients had at least one known predisposing factor for LABC. 42% of patients did not perform routine medical breast checks, 49% reported indifference as the first feeling and 47% waited at least 3 months before seeking medical attention. The reasons for diagnostic delay were different in the various age groups. Doctor's delay in making the right diagnosis occurred in 60% of younger patients (≤40 years, n = 5), whereas among women aged 41-69years (n = 34) 50% suffered from psychiatric comorbidities. In patients ≥70 years (n = 28) social factors such as isolation, being widowed and living in a retirement home were present in most of the cases. Delay in seeking medical care was also associated with increasing age. Across all age groups, coping factors such as denial and indifference were also associated with an increase in the odds of delayed presentation, as opposed to fear.

CONCLUSIONS

Factors possibly explaining late medical consultation seem to differ according to age. Psychological factors are crucial in patients' delay whereas age and social factors are relevant in doctors' and system's delay.

Effect of psychosocial factors on cancer risk and survival

Psychosocial factors such as personality traits and depression may alter immune and endocrine function, with possible effects on cancer incidence and survival. Although these factors have been extensively studied as risk and prognostic factors for cancer, the associations remain unclear. The author used data from prospective cohort studies in population-based and clinical databases to investigate these relations. The findings do not support the hypotheses that personality traits and depression are direct risk factors for cancer and cancer survival.Some researchers have recently reported that cancer affects the psychological status of the partners and family members of cancer patients. The mechanisms underlying this hypothesis imply the existence of not only psychological distress from caregiving and grief but also a shared unhealthy lifestyle. Only a few studies have suggested that major psychosocial problems develop in partners of cancer patients. The present study used nationwide population-based data to investigate depression risk among male partners of women with breast cancer. The results support the hypothesis that such men are at increased risk of depression.In conclusion, the effects of personality traits and depression on cancer risk and survival appear to be extremely small. In addition, partners of cancer patients were at increased risk of depression. Screening partners and family members of cancer patients for depressive symptoms is therefore an important concern for research in psycho-oncology.

Pancreatic cancer and depression: myth and truth

BACKGROUND

Various studies reported remarkable high incidence rates of depression in cancer patients compared with the general population. Pancreatic cancer is still one of the malignancies with the worst prognosis and therefore it seems quite logical that it is one of the malignancies with the highest incidence rates of major depression.However, what about the scientific background of this relationship? Is depression in patients suffering from pancreatic cancer just due to the confrontation with a life threatening disease and its somatic symptoms or is depression in this particular group of patients a feature of pancreatic cancer per se?

DISCUSSION

Several studies provide evidence of depression to precede the diagnosis of pancreatic cancer and some studies even blame it for its detrimental influence on survival. The immense impact of emotional distress on quality of life of cancer patients enhances the need for its early diagnosis and adequate treatment. Knowledge about underlying pathophysiological mechanisms is required to provide the optimal therapy.

SUMMARY

A review of the literature on this issue should reveal which are the facts and what is myth.

Negative psychological aspects and survival in lung cancer patients

We conducted a prospective cohort study in Japan to investigate associations between negative psychological aspects and cancer survival. Between July 1999 and July 2004, a total of 1178 lung cancer patients were enrolled. The questionnaire asked about socioeconomic variables, smoking status, clinical symptoms, and psychological aspects after diagnosis. Negative psychological aspects were assessed for the subscales of helplessness/hopelessness and depression. Clinical stage, performance status (PS), and histologic type were obtained from medical charts. The subjects were followed up until December 2004, and 686 had died. A Cox regression model was used to estimate the hazards ratio (HR) of all-cause mortality. After adjustment for socioeconomic variables and smoking status in addition to sex, age, and histologic type, both helplessness/hopelessness and depression subscales showed significant linear positive associations with the risk of mortality (p for trend<0.001 for both). However, after adjustment for clinical state variables in addition to sex, age, and histologic type, these significant linear positive associations were no longer observed (p for trend=0.41 and 0.26, respectively). Our data supported the hypothesis that the association between helplessness/hopelessness and depression and the risk of mortality among lung cancer patients was largely confounded by clinical state variables including clinical stage, PS, and clinical symptoms.

Personality traits and cancer survival: a Danish cohort study

We conducted a population-based prospective cohort study in Denmark to investigate associations between the personality traits and cancer survival. Between 1976 and 1977, 1020 residents of the Copenhagen County completed a questionnaire eliciting information on personality traits and various health habits. The personality traits extraversion and neuroticism were measured using the short form of the Eysenck Personality Inventory. Follow-up in the Danish Cancer Registry for 1976-2002 revealed 189 incidents of primary cancer and follow-up for death from the date of the cancer diagnosis until 2005 revealed 82 deaths from all-cause in this group. A Cox proportional-hazards model was used to estimate the hazard ratios (HRs) of death from all-cause according to extraversion and neuroticism adjusting for potential confounding factors. A significant association was found between neuroticism and risk of death (HR, 2.3 (95% CI=1.1-4.7); Linear trend P=0.04) but not between extraversion and risk of death (HR, 0.9 (0.4-1.7); Linear trend P=0.34). Similar results were found when using cancer-related death. Stratification by gender revealed a strong positive association between neuroticism and the risk of death among women (Linear trend P=0.03). This study showed that neuroticism is negatively [corrected] associated with cancer survival. Further research on neuroticism and cancer survival is needed.

Depression and survival in patients with non-small cell lung cancer after curative resection: a preliminary study

Psychological depression is thought to be a predictor of poor survival among cancer patients. The objective of the present study was to investigate the association between depression and survival in surgically treated Japanese patients with non-small cell lung cancer (NSCLC). From June 1996 through April 1999, a total of 229 patients with postoperative lung cancer were enrolled. Three months after the patients' surgery, the Structured Clinical Interview for DSM-III-R (SCID) and the Profile of Mood States (POMS) were used to assess the patient for depression, based on the interviewers' rating and a self-report, respectively. The follow-up period consisted of a total of 14 342 person-months (median=69 months). As of January 2004, 55 deaths had occurred within the follow-up period. A Cox regression was used to estimate the hazard ratio (HR) of mortality adjusting for age, sex, smoking status, occasion of diagnosis, pathological stage and preoperative percentage forced expiratory volume in 1 s. The depression-dejection subscale on the POMS was divided into three score levels. The multivariate HR of survival for individuals with depression, as diagnosed by the SCID, was 2.2 (95% confidence interval 0.8-6.0) (P-value=0.14), compared with individuals without depression. The multivariate HR of survival for subjects in the highest level of the POMS Depression-Dejection subscale was 1.4 (0.7-2.6), compared with in the lowest level (trend P-value=0.0502). This prospective cohort study in Japan does not support the hypothesis that depression is associated with survival among NSCLC patients after curative resection, but further analysis involving a long-term follow-up period is needed.

Clarification of the conceptualization and measurement of denial in psychosocial oncology research

Denial represents an important area of study in individuals with cancer. It may be related to recognizing symptoms, seeking medical help, psychological adjustment to diagnosis and illness, and perhaps progression of the disease. However, denial has been defined theoretically and measured in a variety of ways. These differences are due to a lack of consensus as to whether denial is unconscious versus conscious, a trait versus a state, an indication of psychological disturbance versus a normal response to a life-threatening disease, or a broad versus a narrow concept. In addition, there is a lack of congruence between theoretical definitions and the operational definitions used in empirical studies investigating denial in the context of cancer. This inconsistency may be responsible for the mixed findings concerning the importance and function of denial in individuals with cancer. In this article, the ways in which denial has been conceptualized and operationalized are examined, and an overview of the research examining denial in cancer patients is provided. We recommend that future studies provide explicit definitions of denial, use multiple measures assessing different modalities and outcomes, measure denial at several times over the course of illness, and take into account aspects of the individual's situation to ensure that denial is not identified erroneously.

Psychiatric morbidity following the diagnosis and treatment of early breast cancer

Psychiatric illness associated with breast cancer still goes unrecognised and untreated. A prospective study was carried out on a consecutive series of 33 patients with early breast cancer. Patients were interviewed following their diagnosis and 3 to 6 months post-mastectomy. Patients also completed the General Health Questionnaire 60 (GHQ 60) and the Leeds Scales for the Self-Assessment of Anxiety and Depression. Seven patients suffered from a depressive disorder at the post-operative interview. One patient suffered from an anxiety disorder. One of the depressed patients had received antidepressant medication from her general practitioner. The GHQ 60 was able to predict depressive illness in the post-operative period with a sensitivity of 71 per cent at the pre-operative diagnostic stage. This study is consistent in its findings of increased psychiatric morbidity in early breast cancer patients in the months after surgery. It also highlights the usefulness of a self assessment questionnaire in predicting it.

The connection between the psychological condition of breast cancer patients and survival. A follow-up after eight years

Forty breast cancer patients (Stage I, II) were interviewed in 1984. Eight years later, in 1992, 8 of the 40 women had died in the intervening period of time, another 7 women had developed bone metastases, and the remaining 25 women had no evidence of disease. The main findings of this study indicate that the psychological distress, anxiety, hostility, paranoid ideation and psychoticism, as well as the Global Severity Index (GSI), of the eight patients who died during the 8 years following diagnosis were more severe at the time of diagnosis than that of the patients who survived. Moreover, the findings indicate that severity of anxiety may predict length of survival.

Cluster analysis of the medical coping modes questionnaire: evidence for coping with cancer styles?

A number of researchers have attempted to understand how individuals cope with having cancer. Unfortunately, this voluminous literature has suffered from a number of problems common to other pre-paridigmic disciples. Studies are generally isolated and fail to build upon other research in the literature. In addition, no guiding theory or conceptualization exists that helps to explain and describe the richness and complexity of observed clinical phenomena. With the understanding that coping with cancer is multidimensional, some researchers have attempted to group coping responses into dominant styles. In an effort to better understand the results of this approach, we performed a cluster analysis on 117 responses to a three scale questionnaire, the Medical Coping Modes Questionnaire. Results indicated that subjects can be grouped into one of four coping categories: confrontive, avoidant, resigned, or with a nondominant style. Future research is needed to explore how these styles influence quality of life during and following treatment.

Psychological response to cancer and survival

The hypothesis is advanced that the psychological stance which patients adopt in response to cancer can, in some cases, influence the course of their disease. This hypothesis is examined in the light of the author's 15-year follow-up study of women with early breast cancer and of other pertinent studies. The available evidence supports the hypothesis in respect of certain early-stage non-metastatic cancers.

Attitudes of cancer: psychometric properties of fighting spirit and denial

Higher rates of recurrence-free survival at 5- and 10-year follow-up have been reported for breast cancer patients who initially responded to cancer with attitudes of "fighting spirit" or denial. We report here a factor analytic attempt, utilizing questionnaire data, to objectify these attitudes. A reliable factor structure replicated in breast and mixed cancer samples, yielding three factors: (1) Fighting Spirit or belief in the ability to fight back, conquer, and recover from cancer; (2) Information-Seeking behavior; and (3) Denial. Adequate 1-month test-retest correlations were obtained for Fighting Spirit and Information Seeking factor scores. A pattern of differential correlations with other measures (affect, coping, and optimism) distinguished Fighting Spirit and Information Seeking. The Denial factor appeared to be less stable and did not correlate significantly with other measures.

Liaison psychiatry in a breast cancer unit

"The first 50 referrals to a newly established liaison psychiatry service for the breast cancer unit at Guy's Hospital, London, have been examined. The majority of referrals were for psychological reactions to malignant disease; most of these were mood disturbances. Patients with sustained psychological reactions to their malignant disease were more likely to have had treatment for previous psychiatric illness and to lack a confiding relationship compared with those whose psychological reactions were transient. Teaching doctors and nurses to deal effectively with the transient psychological reactions of patients to their malignant disease is an important task of liaison psychiatry."

Emotional expression in cancer onset and progression

Despite the intensive biomedical research in oncology since World War II, recent studies show a steady increase in age-adjusted mortality for all kinds of cancer. This findings gives impetus to the efforts of researchers who have adopted the biopsychosocial model. Systematic research using such a model has shown several psychosocial factors to be associated with cancer onset and progression, and Temoshok has recently suggested a theoretical model which unifies these findings. In this paper, I consider the evidence that one of these psychosocial factors, emotional expression, may be directly involved in cancer onset and progression. I review 18 relevant studies, discuss how one might operationalize the term 'emotional expression', and make 12 suggestions for future research.

Do psychological factors predict survival in breast cancer?

One hundred and twenty-two women with primary operable breast cancer were interviewed before and three months after mastectomy. The outcome of 121 of the women was assessed 6-8 years after operation. Women who were regarded as having enough symptoms to fulfil the criteria for a psychiatric illness (according to Research Diagnostic Criteria (RDC) and the General Health Questionnaire (GHQ) before operation were less likely to have a recurrence during the follow-up. Those who were assessed three months after operation as coping by using a strategy of denial had a better chance of remaining recurrence-free than those women employing other coping strategies; this finding must be viewed with reservation because of the inherent difficulties in measuring coping strategies. These psychological measures improved the prediction of recurrence-free survival beyond that achieved by other variables (e.g. histological node status, tumour size and treatment).

Psychological response to cancer diagnosis--I. Correlations with prognostic variables

A prospective, multidisciplinary study of 168 newly diagnosed patients with early breast cancer and Hodgkin's or non-Hodgkin's lymphoma was conducted. Psychological assessments were conducted at 3 and 12 months following diagnosis and correlated with clinical and pathological variables. There was no statistical association between psychological response to breast cancer and any other prognostic variable measured. In lymphoma patients of both groups there was evidence of greater psychiatric morbidity in those with more advanced disease and those who failed to respond to treatment. However there was also no statistical association between any cognitive response category and known prognostic variables. There was no evidence that the patient's gender or type of tumour affected their overall mental adjustment to cancer and the effect described in breast cancer may apply to all types of malignant disease.

The emotional impact of mastectomy

To learn about the effects of unilateral mastectomy, the emotional responses of four groups of women were compared 1-3 and 10-12 months after surgery: (1) mastectomy group (n = 125)--women who had a unilateral mastectomy for stage I or II breast cancer; (2) biopsy group (n = 65)--women who had a biopsy revealing benign breast disease; (3) cholecystectomy group (n = 75)--women who had a cholecystectomy; (4) healthy group (n = 84)--women who had not had a major surgical intervention. Measures of emotions were: (1) the SCL-90 Analogue; (2) the Global Assessment Scale (GAS); and (3) the Gottschalk-Gleser Content Analysis Scale. The mastectomy group had significantly higher mean Gottschalk-Gleser scores for total anxiety, death and mutilation anxiety, ambivalent hostility, total denial and anxiety denial, and hopefulness. Significant reductions were found in mean total anxiety, mutilation, and shame anxiety in the mastectomy group and in total, death, and mutilation anxiety in the cholecystectomy group between the two postsurgical assessments. The mastectomy group had a significantly higher mean anxiety and depression score than the healthy group on the SCL-90 at both time points. The mastectomy and cholecystectomy groups had lower emotional well-being scores on the GAS than the healthy group over both testing periods. The groups also differed in their amount of change on the GAS over time. All measures, especially the Gottschalk-Gleser scales, showed significantly more psychopathological emotional responses in the mastectomy group, somewhat less in the cholecystectomy group, and the least in the biopsy group.

Cancer from a biobehavioural and social epidemiological perspective

Malignant neoplasm should not be viewed as a 'psychogenic' nor as a 'primarily organic' disease but as an interaction of various forces, in which psychosocial factors may play an important role. To understand the increase in neoplastic disease, which has taken place in this century, requires a theoretical framework including social, psychosocial and behavioural dimensions, as well as the endocrine and immunologic mechanisms acting as pathogenic pathways. Recent theoretical developments in health psychology and allied disciplines on coping behaviour and social support should be integrated into biomedical models of the aetiology, pathogenesis and clinical course of malignant neoplasia. Environmental stressors, as well as mediating variables at the cognitive, affective, behavioural and physiological levels of adaptation, are suggested as major components of a model of multidimensional pathology. A growing body of research on the role of psychosocial factors in adjustment to cancer and its treatment has contributed new insights into possible variables and causal mechanisms which may be relevant in the aetiology of the disease. Closeness to parents in childhood and the ability to form close interpersonal relationships in later adult life very possibly influence the ability of the individual to cope effectively with environmental stressors prior to neoplastic disease and with the considerable stresses of being a cancer patient subsequent to diagnosis and treatment. Pathogenic pathways for future investigation include mental health variables, such as self-esteem and sense of control, at the psychological level and immunity surveillance at the biological. An integration and cross-fertilization of current work in the aetiology of and adjustment to cancer is suggested linking psychosomatic and somatopsychic models.

The psychological dimension in cancer treatment

A cardinal principle of medical ethics, primum non nocere, is examined in relation to current cancer treatments. In randomised, clinical trials of such treatments, the quality of life of patients has been largely ignored. The few systematic psychological studies reported so far indicate the likelihood of considerable psychosocial morbidity associated with radical surgery and prolonging combined chemotherapy. Detailed measures of psychosocial adjustment should be included in all future clinical trials of cancer therapy in order: (i) to identify those patients who require psychological help and (ii) to enable clinicians to base their decisions regarding cancer therapy not only on the probability of prolonging or, in some cases, saving life, but also on an accurate knowledge of the quality of that life.

Coping and cancer prognosis

Psychological responses to a diagnosis of breast cancer, assessed three months post operatively, are related to outcome 10 yr after operation. These results confirm the findings previously reported at 5 yr. The need for further study into the nature of the reported psychological response categories and the likely mediating mechanisms is emphasized.

Cancer and the mind. Maudsley Bequest Lecture delivered before the Royal College of Psychiatrists, February 1983

1848, as every student of history knows, was a revolutionary year in Europe. During that year, a minor, long forgotten revolution occurred in London medical circles when a physician, John Elliotson, published a paper entitled ‘Cure of a true cancer of the female breast with mesmerism’ (Elliotson, 1848). It is, as far as I can ascertain, the first recorded case of its kind. The author hypnotized his patient, a 42-year-old single woman, for “5 years and upwards … and for the greater part of the period three times a day”; during that time, Elliotson observed a ‘cancerous tumour’ in her right breast shrink away completely. No less than seven physicians and surgeons independently attested to the diagnosis of breast cancer, but no pathological examination was carried out. Elliotson was roundly abused, not for using hypnosis to treat cancer, but for using hypnosis at all—a practice condemned by certain physicians of fervid imagination as “indecent, disgraceful … liable to excite lascivious passions … an infernal system … the workings of Satan” (Elliotson, 1848).

Psychological concomitants of cancer: current state of research

An increasing interest in the psychological concomitants of neoplastic diseases has led to a burgeoning literature in recent years. The present review identifies five major areas of psychiatric research, documents the current state of knowledge, and indicates fruitful avenues for further study.