Lynn R. Gauthier

Correlates of Postoperative Pain and Intravenous Patient‐Controlled Analgesia Use in Younger and Older Surgical Patients

OBJECTIVE Age-related patterns in postoperative pain are unclear with reports of no age differences and less pain with age. The objective of this study was to identify correlates of pain and intravenous patient-controlled analgesia (i.v. PCA) morphine use in younger and older patients. DESIGN 24 hours after surgery, patients completed measures of pain intensity and pain qualities. Surgical factors, i.v. PCA morphine intake, anticholinergic load, polypharmacy, physical status, previous chronic and postoperative pain, and PCA experience were measured. SETTING Two academic general hospitals. PATIENTS. Two hundred forty-six general surgery patients ranging in age from 18 to 82 years old. RESULTS In older patients, higher pain scores were associated with female gender and previous experience of postoperative PCA. In younger patients, higher pain scores were associated with female gender, previous surgery without PCA, and greater morphine intake. Lower pain was associated with being male, and no previous surgical experience in older patients, and lower morphine intake in younger patients. Morphine intake was higher in patients who were younger, had better physical status, higher anticholinergic load, and experience with PCA. Among younger patients, increased morphine use also was associated with surgical procedure and duration. Higher pain scores were more strongly associated with morphine use among younger than older patients. CONCLUSIONS The correlates of postoperative pain and morphine use may differ with age, and the same factor may have different effects across age groups. Research is needed into the mechanisms of these age-specific profiles.

Acceptance of pain: A study in patients with advanced cancer

ABSTRACT Pain, among the most common symptoms of cancer, impacts on multiple domains of wellbeing. Significant numbers of patients continue to experience pain despite pharmacological interventions. Although there is evidence to suggest that acceptance of pain is related to better wellbeing among patients with chronic nonmalignant pain, little is known about acceptance of cancer pain. The purpose of this cross‐sectional study was to determine the correlates of pain acceptance in 81 patients with advanced cancer and pain. Demographic, disease, and treatment‐related information was collected, and patients completed measures of pain, physical, psychological, and social/relational wellbeing and pain acceptance. Multivariate regression models, using backward elimination, determined the correlates of each subscale of the Chronic Pain Acceptance Questionnaire separately. Activity Engagement was negatively associated with depressive symptoms. Pain Willingness was negatively associated with pain catastrophizing. Parents living with children had lower Pain Willingness scores than non‐parents. These relationships were independent of pain severity and physical functioning. These preliminary results suggest that acceptance of cancer pain is related to better psychological wellbeing and that there may be a relational element, with parents at risk of experiencing difficulty in adapting to ongoing cancer pain. These data lay the groundwork for future research and interventions designed to enhance quality of life for patients with advanced cancer and pain.

The Communal Coping Model and Cancer Pain: The Roles of Catastrophizing and Attachment Style

UNLABELLED Pain is among the most common symptoms of cancer, with impacts on multiple domains of well-being. Biopsychosocial factors play an important role in adjustment to cancer pain. The Communal Coping Model (CCM), which may elucidate the social context of cancer pain, suggests that people catastrophize to convey distress and elicit support. Attachment style, ones ability to elicit and respond to available support, may be an important factor, but this has not been tested in people with cancer pain. This study examined pain catastrophizing, attachment style and relational context in relation to perceived solicitous, distracting, and punishing responses of significant others to pain in 191 patients with advanced cancer. Consistent with the CCM, higher pain catastrophizing was related to more frequent solicitous and distracting responses. Pain catastrophizing, attachment anxiety, and significant other type interacted in relation to punishing responses. Higher pain catastrophizing was related to less frequent punishing responses only in anxiously attached patients who identified their spouse/partner as their significant other. These results provide support for the CCM of cancer pain, and contribute to refinement of the model. Future research that includes patients and their caregivers is required to further explicate the social context of cancer pain. PERSPECTIVE This article investigates the Communal Coping Model in people with cancer pain. In partial support of the model, we found that pain catastrophizing was related to more frequent solicitous and distracting responses but less frequent punishing responses only in anxiously attached patients who identified their spouse/partner as their significant other.

Cancer pain and depression: A systematic review of age-related patterns

BACKGROUND Pain is a common and debilitating symptom experienced by cancer patients of all ages. Cancer pain is associated with elevated levels of depression; however, age-related patterns in this relationship remain unclear. This information is important to provide effective palliation of pain and depression to the growing numbers of older cancer patients. OBJECTIVE To provide a systematic review of the literature regarding age-related patterns in the intensity or prevalence of depression among cancer patients with pain. METHODS Medical and psychological literature databases were searched to identify eligible studies. The methodological quality and outcomes of the studies were compiled and systematically reviewed. RESULTS Five articles, describing four studies, met the inclusion and exclusion criteria. Due to high levels of cross-study methodological variability, a qualitative review was undertaken. Three of the four studies did not find evidence for age-related patterns in depression. The fourth study found that depression increased with age. CONCLUSION The weight of the evidence suggests that younger and older cancer patients with pain report comparable levels of depression. However, this conclusion remains preliminary due to the methodological limitations of the available studies. Research is needed to more adequately address this important issue.

Validation of the short-form McGill pain questionnaire-2 in younger and older people with cancer pain.

UNLABELLED Pain is among the most common symptoms of cancer. Because cancer can occur at any age, it is imperative that pain assessment tools are valid for use across the adult lifespan. The Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2) is a valid and reliable tool for the assessment of the multidimensional qualities of pain in people with chronic nonmalignant pain, but its psychometric properties in people with cancer pain and in older versus younger people require investigation. This study evaluated age differences in the validity, reliability, and use of the SF-MPQ-2 in 244 people with advanced cancer and pain. We confirmed the previously reported 4-factor solution in older (≥ 60 years) and younger (<60 years) patients. Internal consistency reliability and convergent validity were similar across age groups, although the SF-MPQ-2 sensory subscales were correlated with mental health quality of life in older, but not younger, patients. Older and younger patients selected the same words with the same intensity to describe their pain. The most commonly selected words in both age groups were aching, tiring-exhausting, sharp, and dull. These results demonstrate that the SF-MPQ-2 is appropriate for use across the adult lifespan in people with cancer pain. PERSPECTIVE This study demonstrated that the SF-MPQ-2 is valid for use in older and younger people with advanced cancer and pain. This measure could improve cancer pain assessment across the adult lifespan, which may lead to improved pain management.

Age-Related Patterns in Cancer Pain and Its Psychosocial Impact: Investigating the Role of Variability in Physical and Mental Health Quality of Life

Objective Age-related patterns in cancer pain remain equivocal. Most studies ignore heterogeneity across multiple domains of well-being, and the potential role of physical (PH) and mental health (MH) quality of life (QOL) in these age-related patterns is unknown. We investigated the relationships between age and cancer pain intensity, qualities, and interference, and physical and psychosocial adaptation and the interaction between age and PH and MH QOL on pain and adaptation to cancer pain. Design In this cross-sectional study, 244 patients with advanced cancer and pain completed measures of pain, QOL, physical function, and psychosocial well-being. Pearsons correlations and ANOVAs assessed relationships between age and demographic and clinical factors, pain, and physical and psychosocial measures. Regression models tested the role of age and its interaction with PH and MH QOL on pain and physical and psychosocial adaptation. Results Older age was associated with a lower likelihood of receiving an opioid prescription, greater likelihood of having comorbidities, and worse functional status. When we did not account for these factors, age was not associated with pain and most adaptation indices. When we did account for these factors and PH QOL, older age was associated with lower non-neuropathic and neuropathic pain and several indices of psychosocial adaptation. Most interestingly, older age was associated with lower non-neuropathic pain among those with high, but not low, MH QOL. Conclusions This study addresses knowledge gaps about factors underlying age-related patterns in cancer pain. Impaired MH QOL may be a proxy for age-related patterns in cancer pain. Summary This study investigated age-related patterns in the experience of cancer pain and the role of quality of life in resilience and vulnerability to pain and adaptation to pain. Older age is associated with lower non-neuropathic pain among those with high, but not low, mental health quality of life, suggesting that impaired mental health quality of life is an important indicator of vulnerability to multidimensional pain outcomes.

Trial designs for chemotherapy-induced peripheral neuropathy prevention: ACTTION recommendations

Chemotherapy-induced peripheral neuropathy (CIPN) is a common and potentially dose-limiting side effect of neurotoxic chemotherapies. No therapies are available to prevent CIPN. The small number of positive randomized clinical trials (RCTs) evaluating preventive therapies for CIPN provide little guidance to inform the design of future trials. Moreover, the lack of consensus regarding major design features in this area poses challenges to development of new therapies. An Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities and Networks (ACTTION)–Consortium on Clinical Endpoints and Procedures for Peripheral Neuropathy Trials (CONCEPPT) meeting attended by neurologists, oncologists, pharmacists, clinical trialists, statisticians, and regulatory experts was convened to discuss design considerations and provide recommendations for CIPN prevention trials. This article outlines considerations related to design of RCTs that evaluate preventive therapies for CIPN including (1) selection of eligibility criteria (e.g., cancer types, chemotherapy types, inclusion of preexisting neuropathy); (2) selection of outcome measures and endpoints, including those that incorporate alterations in chemotherapy dosing, which may affect the rate of CIPN development and its severity; (3) potential effects of the investigational therapy on the efficacy of chemotherapy; and (4) sample size estimation. Our hope is that attention to the design considerations and recommendations outlined in this article will improve the quality and assay sensitivity of CIPN prevention trials and thereby accelerate the identification of efficacious therapies.

Do Correlates of Pain-Related Stoicism and Cautiousness Differ in Younger and Older People With Advanced Cancer?

Age differences are not evident in pain-related stoicism and cautiousness in people with cancer pain. Little is known about the factors associated with these pain-related attitudes or age-related patterns in these associations. The present cross-sectional study investigated the biopsychosocial correlates of the attitudes in younger and older patients with advanced cancer. Pain-related stoicism (fortitude, concealment, superiority) and cautiousness (self-doubt, reluctance) were assessed using the Pain Attitudes Questionnaire-Revised (PAQ-R). Participants, 155 younger (younger than 60 years old) and 114 older (60 years old or older) patients with advanced cancer completed the PAQ-R and measures of sociodemographic and medical characteristics, pain intensity, cognitive-affective pain-related responses, physical functioning, psychological distress and well-being, and psychosocial functioning. Backwards regression analyses identified correlates for each PAQ-R factor separately for younger and older patients. Activity engagement was a frequent correlate, but its relationship with concealment was the only association common to both age groups. Younger and older patients exhibited different avoidance-related constructs suggesting relational challenges in the former group (avoidant attachment) and intrapersonal fear in the latter (cognitive avoidance). Medical correlates also showed age differences: younger patients showed symptom-focused correlates, whereas older patients showed aging-related correlates. Findings support a biopsychosocial framework of cancer-pain adaptation incorporating a lifespan-developmental perspective. PERSPECTIVE To our knowledge, this article is the first to identify biopsychosocial correlates of stoic and cautious attitudes toward cancer pain in younger and older patients with advanced cancer. Findings highlight possible age-related motivations for greater pain-related stoicism or cautiousness and can potentially inform interventions addressing challenges in cancer-pain adaptation in advanced cancer.

Perspectives of Women Considering Bilateral Prophylactic Mastectomy and their Peers towards a Telephone-Based Peer Support Intervention

Prophylactic mastectomy is an effective strategy to reduce the risk of breast cancer for women carrying a BRCA1/2 germline mutation. This decision is complex and may raise various concerns. Women considering this surgery have reported their desire to discuss the implications of this procedure with women who have undergone prophylactic mastectomy. We conducted a qualitative study to describe the topics covered during a telephone-based peer support intervention between women considering prophylactic mastectomy (recipients) and women who had undergone this surgery (peers), and to explore their perspectives regarding the intervention. Thirteen dyads were formed and data from participant logbooks and evaluation questionnaires were analyzed using a thematic content analysis. Three main dimensions emerged: physical, psychological, and social. The most frequent topics discussed were: surgery (92%), recovery (77%), pain and physical comfort (69%), impacts on intimacy and sexuality (54%), cancer-related anxiety (54%), experience related to loss of breasts (46%). Peers and recipients report that sharing experiences and thoughts about prophylactic mastectomy and the sense of mutual support within the dyad contributed significantly to their satisfaction. Special attention should be paid to the similarities between personal and medical profiles in order to create harmonious matches.

Pain, aging and dementia: Towards a biopsychosocial model

&NA; Dementia is a progressive disease associated with irreversible impairment and loss of cognitive abilities. About half of older people with dementia experience pain. In this paper, we propose that pain in older people with dementia can be conceptualized as the final result of the interaction of three heterogeneous phenomena, pain, aging, and dementia, which are created and influenced by the interactions of predisposing, lifelong, and current biopsychosocial factors. We review pain assessment in people with dementia using both self‐report and observational/behavioral measures. We then review the biological/sensory, psychological (cognitive and affective) and social dimensions of pain in dementia. The available data suggest that dementia does not impact pain threshold or tolerance. To date, there is little research on the social dimension of pain in dementia. Changes in the affective domain in response to experimental pain have been contradictory with evidence supporting both increased and decreased unpleasantness and emotional responsiveness in people with dementia compared to healthy controls. Clinically, depression is a significant burden for older people with dementia and chronic pain. The relationship between pain and other neuropsychiatric symptoms is controversial, and there is insufficient evidence on which to base conclusions. Some of the most important dementia‐related changes may arise in the cognitive domain, including impairments of semantic and episodic memory for pain, executive function, and pain anticipation. Changes in brain activation and interconnectivity support many of these conclusions. Despite methodological limitations, we conclude there are compelling preliminary data to support a biopsychosocial framework of pain and dementia. Future research directions, especially the need for improved assessment tools, are highlighted. HighlightsAbout half of older people with dementia report pain.Pain and dementia have a reciprocal relationship with each impacting the other.A biopsychosocial model of pain in older people with dementia is proposed.