Psychological Aspects of Breast Cancer

The influence of locus of control, coping strategies and time perspective on post-traumatic growth in survivors with primary breast cancer

BACKGROUND

Breast cancer, a potential traumatic stressor, may be accompanied by positive changes, such as post-traumatic growth (PTG), which may allow patients to overcome this stressful event more easily. Our aim was to identify factors associated with PTG in breast cancer survivors (BCSs).

METHODS

We conducted a cross-sectional study in Seintinelles volunteers who answered online questionnaires. PTG was measured using the Post-Traumatic Growth Inventory (PTGI). Data on sociodemographic, health-related factors and lifestyle habits, fear of cancer recurrence, health locus of control, coping strategies, and time perspective were collected.

RESULTS

The study included 821 BCSs aged 26 to 79 years, one to 16 years after cancer diagnosis. Mean of PTG scores were: relating to others 20.27 ± 6.61; new possibilities 14.00 ± 5.44; personal strength 12.24 ± 4.32; spiritual change 2.95 ± 2.54; appreciation of life 10.59 ± 3.00 and total PTG 60.05 ± 18.11. Several factors were associated with PTG: health-related factors (satisfaction with one's own health, longer time since diagnosis), lifestyle habits (increasing physical activity level and stopping or reducing alcohol consumption after diagnosis), elements of locus of control (powerful others), coping strategies (positive thinking, seeking social support) and time perspective (present hedonistic), which were significantly positively associated with PTG. Chance locus of control and coping avoidance were inversely related to several PTG domains, even several years after diagnosis.

CONCLUSIONS

PTG may be increased in BCSs by acting on its modifiable factors. This includes adopting healthy behaviours, such as increasing physical activity and stopping/reducing alcohol consumption, and developing locus of control elements, such as powerful others, and coping strategies, such as positive thinking and seeking social support, through targeted interventions. Further studies, especially longitudinal studies, are needed to confirm the observed associations between health behaviours, health locus of control, time perspective, and PTG scores. Other measures, such as post-traumatic stress, should be considered because of possible inferences with PTG.

An Investigation into Psychological Aspects of Patients Diagnosed with Breast Cancer: A Review Study of Postgraduate Theses Prepared in Turkey

A significant number of scientific data concerning breast cancer is generated in Turkey. The present research reviewed postgraduate theses examining the psychological evaluation of breast cancer patients conducted in Turkey. The objective of the review study was to ascertain the focal topics of the theses, identify commonly examined psychological variables, determine research gaps, compare the frequency of experimental and intervention studies with other kinds of research, and provide recommendations for literature. A retrospective descriptive study was designed by performing a search on the YÖK Thesis Center website with the keywords "breast cancer" and "psychology" (in Turkish and English) between 2000 and 2024. The criteria for inclusion in the review study required that the dissertation be a master's or doctoral thesis in psychology, involve breast cancer patients as participants, focus on patients who are not in remission, and be available as open access. Twenty-seven postgraduate theses were selected. Of the theses 88.9% were classified as master's theses, while 11.1% were categorized as doctoral theses. Although the variables included in the these studies were numerous, some were investigated more often. "Post-traumatic growth" was evaluated by 12 theses, "perceived social support" by 6, "depression-anxiety-stress" by 15, and "coping" by 8. more frequently observed factors include metacognition, ruminative thinking, schemas, body perception/image, and self-esteem. Most of the studies were relational and non-interventional. Only three studies used psychological intervention. It is suggested that thesis studies should include more participant characteristics, control for them in analyses, and be more experimental and effectiveness focused.

Effects of Mobile Application-Based Cognitive Behavioral Therapy on Psychological Outcomes in Women Treated for Breast Cancer: A Randomized Controlled Pilot Trial in Germany

OBJECTIVE

Breast cancer has a strong impact on the mental state of those affected. Cognitive behavioral therapy (CBT) is one effective approach to reduce disease burden. This randomized controlled pilot trial aimed to assess the effect of the digital CBT-based application Living Well on psychological outcomes in a German female breast cancer population.

METHODS

Female breast cancer patients (n = 70) with ongoing or finished oncological treatment that is who were receiving or had received any type of oncological treatment were included in the study and randomized to an intervention group (IG, n = 32) receiving Living Well in addition to care as usual, and a control group (CG, n = 38) receiving care as usual only. Participants completed standardized questionnaires at baseline and after 2, 4, 8, and 12 weeks to assess anxiety and depression (HADS) as primary outcomes, distress (DT), health-related quality of life (HRQoL, AQoL-8D), and illness perception (B-IPQ) as secondary outcomes.

RESULTS

After 12 weeks, significant (p < 0.05) higher improvements in the IG could be observed in anxiety levels, HRQoL, and illness perception, when compared to the CG. Age and time since diagnosis were found to be relevant covariates for anxiety levels. In distress levels, the IG showed a clinically relevant and nearly significant reduction compared to the CG (p = 0.057). No effects could be observed in depression levels.

CONCLUSIONS

The results demonstrate the potential of Living Well to improve psychological outcomes of female breast cancer patients and encourage further studies evaluating the effectiveness of the digital application.

TRIAL REGISTRATION

The trial has been registered in the German Clinical Trials Register (DRKS00029918).

Effects of a Single Session of Mindfulness and Compassion on Skin Temperature in Breast Cancer Survivors

Previous studies have suggested that mindfulness programs can be useful, in a significant sector of the population, to reduce stress when practiced for at least 8 weeks. The objective of the present investigation was to explore the effect of a single session of mindfulness practice in reducing stress in female cancer survivors. Two repeated measures studies were applied; in the first one, it was performed individually, while in the second one, it was performed in a group. Psychosocial measures were administered, and skin temperature was recorded as a marker of autonomic nervous activity. The results indicate that only when the mindfulness exercise was presented did the skin temperature increase (p < 0.05), with a large effect size (d > 0.8) during compassion, suggesting sympathetic decline. Furthermore, the psychosocial functioning of the group of female cancer survivors was like that of the non-clinical population. The data are discussed in the context of Polyvagal Theory, a theoretical model of biopsychosocial functioning, and evidence is provided on the effect of mindfulness and compassion on reducing stress and inducing positive affect in female cancer survivors.

Increased Stress Is Associated With Severe Pain and Decrements in Cognitive Function in Patients Receiving Chemotherapy

OBJECTIVES

Purposes were to identify subgroups of adult oncology patients (n = 1342) with distinct joint profiles of worst pain and cognitive function (CF) and evaluate for differences in demographic and clinical characteristics, as well as the severity of three distinct types of stress, resilience, and coping.

DATA SOURCES

Measures of pain and CF were evaluated six times over two cycles of chemotherapy. The other measures of demographic and clinical characteristics, stress, resilience, and coping were completed at enrollment (ie, prior to the second or third cycle of chemotherapy).

RESULTS

Using latent profile analysis, four distinct profiles were identified (ie, no pain + moderate CF [27.6%], moderate pain + high CF [22.4%] moderate pain and moderate CF [32.4%, both moderate], severe pain and low CF [17.5%, both severe]). Both moderate and both severe classes reported higher global, cancer-specific, and cumulative life stress, lower levels of resilience, and greater use of disengagement coping strategies. The Both severe class had higher occurrence rates for a number of adverse childhood experiences (ie, family violence in childhood, physical abuse at <16 years, forced sex at <16 years). Risk factors associated with membership in the two worst profiles included: being female, having a lower annual income, having a higher comorbidity burden, and having a poorer functional status.

CONCLUSION

Findings suggest that 72.4% of the patients reported pain scores in the moderate to severe range and 77.6% reported low to moderate levels of CF. Clinicians need to assess for both symptoms and various types of stress on a routine basis.

Variability of DNA Repair and Oxidative Stress Genes Associated with Worst Pain in Breast Cancer Survivors on Aromatase Inhibitors

Pain is a problem affecting women with breast cancer (HR+BrCa) receiving aromatase inhibitor (AI) therapy. We investigated the relationship between single-nucleotide polymorphisms (SNPs) in DNA repair and oxidative stress genes and perceived worst pain after 6 months of AI therapy. We explored 39 SNPs in genes involved in DNA repair (ERCC2, ERCC3, ERCC5, and PARP1) and oxidative stress (CAT, GPX1, SEPP1, SOD1, and SOD2) in women with HR+BrCa receiving adjuvant therapy (AI ± chemotherapy; n = 138). Pain was assessed via the Brief Pain Inventory. Hurdle regression was used to evaluate the relationship between each associated allele and (1) the probability of pain and (2) the severity of worst pain. ERCC2rs50872 and ERCC5rs11069498 were associated with the probability of pain and had a significant genetic risk score (GRS) model (p = 0.003). ERCC2rs50872, ERCC5rs11069498, ERCC5rs4771436, ERCC5rs4150360, PARP1rs3219058, and SEPP1rs230819 were associated with the severity of worst pain, with a significant GRS model (conditional mean estimate = 0.45; 95% CI = 0.29, 0.60; p < 0.001). These results suggest DNA repair and oxidative stress pathways may play a role in the probability of pain and the severity of worst pain. As healthcare delivery moves towards the model of precision healthcare, nurses may, in the future, be able to use these results to tailor patient care based on GRS.