Prevalence of pain in patients with cancer: a systematic review of the past 40 years

Relationship between age and symptoms of pain and fatigue in adults undergoing treatment for cancer

BACKGROUND

Pain and fatigue are 2 of the most common symptoms experienced by individuals undergoing treatment for cancer. It has been hypothesized that older adults experience lower levels of severity and interference from pain and fatigue when compared with younger adults.

OBJECTIVE

The purpose of this study was to identify how pain and fatigue, severity, and interference may vary between younger and older adults undergoing cancer treatment over time.

METHODS

This study is a secondary analysis of data of 2 different randomized controlled trials that examined the symptom experience in adults undergoing treatment for cancer. A linear mixed model analysis was used to determine the differences based on age across 6 contacts over 8 weeks.

RESULTS

Results indicate that pain severity is significantly (P < .01) related to age. Age was not found to be significantly related to the level of interference associated with pain or the severity or interference associated with fatigue.

CONCLUSION

Symptoms of pain and fatigue are prevalent across age groups and will vary across time. Older and younger adults do not necessarily experience symptoms differently. Interference associated with pain and fatigue impacts all age groups; interference may not be directly related to the level of severity.

IMPLICATIONS FOR PRACTICE

This study highlights the importance of assessing both severity and interference associated with symptoms in all adults undergoing treatment for cancer. Further research is needed to better understand the relationship between age and symptoms in individuals undergoing treatment for cancer.

Blockade of nerve sprouting and neuroma formation markedly attenuates the development of late stage cancer pain

For many patients, pain is the first sign of cancer and, while pain can be present at any time, the frequency and intensity of pain tend to increase with advancing stages of the disease. Thus, between 75 and 90% of patients with metastatic or advanced-stage cancer will experience significant cancer-induced pain. One major unanswered question is why cancer pain increases and frequently becomes more difficult to fully control with disease progression. To gain insight into this question we used a mouse model of bone cancer pain to demonstrate that as tumor growth progresses within bone, tropomyosin receptor kinase A (TrkA)-expressing sensory and sympathetic nerve fibers undergo profuse sprouting and form neuroma-like structures. To address what is driving the pathological nerve reorganization we administered an antibody to nerve growth factor (anti-NGF). Early sustained administration of anti-NGF, whose cognate receptor is TrkA, blocks the pathological sprouting of sensory and sympathetic nerve fibers, the formation of neuroma-like structures, and inhibits the development of cancer pain. These results suggest that cancer cells and their associated stromal cells release nerve growth factor (NGF), which induces a pathological remodeling of sensory and sympathetic nerve fibers. This pathological remodeling of the peripheral nervous system then participates in driving cancer pain. Similar to therapies that target the cancer itself, the data presented here suggest that, the earlier therapies blocking this pathological nerve remodeling are initiated, the more effective the control of cancer pain.

Variation in pain medication use in end-of-life care

BACKGROUND

Pain is a common and distressing symptom at the end of life that medications can help relieve. We sought to explore variation in approaches to pharmaceutical management of pain among hospice-eligible patients and to determine if variation was explained by patient or site of care characteristics. Variation in medication use may suggest areas for best practices or quality improvement in medication use in end-of-life care.

METHODS

We conducted a secondary analysis of randomized trial data, examining use of five medication classes: opiates, nonsteroidal anti-inflammatory drugs (NSAIDs), adjuvant pain medications (tricyclics and antiseizure), stimulants, and antianxiety medications in 16 study sites nationwide. Descriptive statistics were generated for patient-level data and by site. Unadjusted and adjusted odds ratios were calculated to compare patient and location of care characteristics with each medication class use by site.

RESULTS

We found variation in medication use was not predicted by most patient characteristics or location of care (home versus facility). Use of all types of pain medications decreased with age (odds ratio [OR] 0.75 [0.63-0.90]). Medication use varied between sites: a range of 14%-83% of patients were on different types of opiates, 0%-40% on NSAIDS, 20%-69% on benzodiazepines, 0%-25% on adjuvant medications, and 0%-23% were on acetaminophen at any time during the data collection period.

CONCLUSIONS

Pain and adjuvant medication use differs widely by site of care. Further research is needed to determine the extent to which provider and patient choice contribute to prescribing variation, and to explore associations between patient symptoms, medication variation, and patient care quality.

The pain, depression, and fatigue symptom cluster in advanced breast cancer: covariation with the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system

OBJECTIVE

Neuroendocrine-immune models have been proposed to account for the frequent co-occurrence of pain, depression, and fatigue (PDF) among cancer patients.

DESIGN

In a cross-sectional observational study of advanced cancer patients (N = 104), we tested the hypothesis that the PDF cluster covaries with proposed biological mediators: hormones of the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis.

MAIN OUTCOME MEASURES

PDF symptoms were measured using the Brief Pain Inventory, Fatigue Symptom Inventory, and the Center for Epidemiological Studies Depression scales. HPA activation was indicated by plasma levels of cortisol and adrenocorticotropic hormone, and SNS activation was indicated by plasma epinephrine and norepinephrine.

RESULTS

Preliminary analyses supported the use of covariance structure modeling to test whether shared variance among hormone levels predicted shared variance among PDF symptoms. Latent variable analysis indicated that neuroendocrine levels predicted PDF (standardized beta = .23, p = .039), while controlling for important disease and demographic variables.

CONCLUSION

Previous studies have linked individual symptoms to individual biomarkers. The observed significant paring of the 4 hormones to the PDF cluster provides the first evidence suggestive of stress hormones as a common mechanism for the co-occurrence of pain, depression, and fatigue symptoms.

Management of cancer-related pain

Patients and families struggling with cancer fear pain more than any other physical symptom. There are also significant barriers to optimal pain management in the emergency setting, including lack of knowledge, inexperienced clinicians, myths about addiction, and fears of complications after discharge. In this article, we review the assessment and management options for cancer-related pain based on the World Health Organization (WHO) 3-step approach.

A randomized controlled trial of a standardized educational intervention for patients with cancer pain

CONTEXT

Published literature has not defined the effectiveness of standardized educational tools that can be self-administered in the general oncology population with pain.

OBJECTIVES

We sought to determine if an educational intervention consisting of a video and/or booklet for adults with cancer pain could improve knowledge and attitudes about cancer pain management, pain levels, pain interference, anxiety, quality of life, and analgesic use.

METHODS

Eligible participants had advanced cancer, a pain score >/=2 of 10 in the last week, English proficiency, an estimated prognosis of more than one month, and were receiving outpatient cancer treatment at participating hospitals. Participants completed baseline assessments and then were randomly allocated to receive a booklet, a video, both, or neither, in addition to standard care. Outcome measures at two and four weeks included the Barriers Questionnaire (BQ), Brief Pain Inventory, Global Quality of Life Scale, and Hospital Anxiety and Depression Scale. Adequacy of analgesia and severity of pain were assessed with the Pain Management Index and a daily pain diary.

RESULTS

One hundred fifty-eight participants were recruited from 21 sites over 42 months. Baseline mean barriers scores were lower than reported in previous Australian studies at 1.33 (standard deviation: 0.92). Mean average pain and worst pain scores improved significantly in patients receiving both the video and booklet by 1.17 (standard error [SE]: 0.51, P=0.02) and 1.12 (SE: 0.57, P=0.05), respectively, on a 0-10 scale. The addiction subscale of the BQ score was improved by 0.44 (SE: 0.19) for participants receiving any part of the intervention (P=0.03).

CONCLUSION

Provision of a video and/or booklet for people with cancer pain was a feasible and effective adjunct to the management of cancer pain.

Efficacy of radiotherapy for painful bone metastases during the last 12 weeks of life: results from the Dutch Bone Metastasis Study

BACKGROUND

Radiotherapy is an effective treatment for painful bone metastases. Whether this applies also in patients with limited survival remains to be investigated. This study analyzed the effect of radiotherapy for painful bone metastases in patients with a survival < or =12 weeks.

METHODS

In the Dutch Bone Metastasis Study, 1157 patients with painful bone metastases were randomized to single fraction (1 x 8 grays [Gy]) or multiple fraction (6 x 4 Gy) radiotherapy. Patients who died within 12 weeks after randomization were included in this analysis. Patients were classified as responders or nonresponders, based on their pain response to radiotherapy. This response was calculated considering changes in pain intensity (measured with an 11-point numeric rating scale) and analgesic usage. Cox proportional hazards models were used to analyze pain response and survival.

RESULTS

Two hundred seventy-4 patients were included in this analysis. At randomization, the mean pain intensity score (+/-standard deviation) was 7 (+/-2). The proportion showing a pain response did not differ between the single fraction and multiple fraction groups. Toward death, pain intensity score decreased to 5 (+/-3) in responders (45%), whereas in nonresponders (55%) no change was observed. Despite the benefit in responders, in 60% of all patients pain intensity remained 5 after randomization.

CONCLUSIONS

Pain responded in about half of the patients who survived < or =12 weeks after randomization into the Dutch Bone Metastasis Study. When considering radiotherapy, single fraction should be preferred. Additional palliative measures remain essential for adequate pain control.

Self-efficacy for coping with cancer in a multiethnic sample of breast cancer patients: associations with barriers to pain management and distress

OBJECTIVES

This study examined the interrelations of self-efficacy for coping with cancer, perceived barriers to pain management, distress, and pain outcomes in a multiethnic sample of breast cancer patients. The extent to which ethnicity (Black, Latina, or White), language (English or Spanish), and level of education and income predicted these variables was also assessed.

METHODS

Participants were breast cancer patients with persistent pain (N=87) who were recruited from oncology clinics in New York City. Patients completed an assessment battery that included measures of self-efficacy for coping with cancer, barriers to pain management, distress, and pain outcomes.

RESULTS

Greater self-efficacy for coping with cancer was associated with older age, less time since diagnosis, and less distress. In addition, less self-efficacy for seeking and understanding medical information, Spanish language preference, and greater distress predicted greater barriers to pain management. Average pain severity was higher among Spanish-speaking individuals and those with lower incomes.

DISCUSSION

Findings point to the potential importance of self-efficacy for seeking and understanding medical information and perceived barriers to pain management in understanding the psychologic well-being of breast cancer patients with pain, especially those who are Spanish-speaking.

Prevalence of pain in head and neck cancer out-patients

BACKGROUND

This study aimed to determine the prevalence of pain, and the adequacy of its treatment, amongst patients with head and neck cancer, and to determine whether specific groups could be identified as being at risk of pain.

METHODS

Consecutive patients attending head and neck oncology out-patient services were surveyed.

RESULTS

The prevalence of pain was 34 per cent, lower than that found in systematic reviews. No specific risk factors for pain were identified. Particular pain problems in this population comprised a high incidence of neuropathic pain, breakthrough pain and pain of non-malignant origin.

CONCLUSION

The prevalence of unrelieved pain was high in this study population, although no specific risk factors were found. A further study is planned to determine the effect of using a routine screening tool and an immediate pain treatment protocol in this group of patients.

Pharmacological treatment of chronic pain - the need for CHANGE

BACKGROUND

Although chronic pain affects around 20% of adults in Europe and the USA, there is substantial evidence that it is inadequately treated. In June 2009, an international group of pain specialists met in Brussels to identify the reasons for this and to achieve consensus on strategies for improving pain management.

SCOPE

Literature on chronic pain management was reviewed, and information presented to and discussed by a panel of experts.

FINDINGS

It was agreed that guidelines are not universally accepted by those involved in pain management, and pain treatment seems to be driven mainly by tradition and personal experience. Other factors include poor communication between patients and physicians, the side effects of analgesic drugs, and limited individualisation of therapy. Difficulty in maintaining the balance between adequate pain relief and acceptable tolerability, particularly with strong opioids, can lead to the establishment of a 'vicious circle' that alternates between lack of efficacy and unpleasant side effects, prompting discontinuation of treatment. The medical community's understanding of the physiological differences between nociceptive pain and neuropathic pain, which is often more severe and difficult to treat, could be improved. Increasing physicians' knowledge of the pharmacological options available to manage these different pain mechanisms offers the promise of better treatment decisions and more widespread adoption of a multi-mechanistic approach; this could involve loosely combining two substances from different drug classes, or administering an analgesic with two different mechanisms of action. In some circumstances, a single compound capable of addressing both nociceptive and neuropathic pain is desirable.

CONCLUSIONS

To improve patient outcomes, a thorough understanding of pain mechanisms, sensitisation and multi-mechanistic management is required. Universal, user-friendly educational tools are therefore required to familiarise physicians with these topics, and also to improve communication between physicians and their pain patients, so that realistic expectations of treatment can be established.

Cancer pain: part 2: physical, interventional and complimentary therapies; management in the community; acute, treatment-related and complex cancer pain: a perspective from the British Pain Society endorsed by the UK Association of Palliative Medicine and the Royal College of General Practitioners

OBJECTIVE

This discussion document about the management of cancer pain is written from the pain specialists' perspective in order to provoke thought and interest in a multimodal approach to the management of cancer pain, not just towards the end of life, but pain at diagnosis, as a consequence of cancer therapies, and in cancer survivors. It relates the science of pain to the clinical setting and explains the role of psychological, physical, interventional and complementary therapies in cancer pain.

METHODS

This document has been produced by a consensus group of relevant healthcare professionals in the United Kingdom and patients' representatives making reference to the current body of evidence relating to cancer pain. In the second of two parts, physical, invasive and complementary cancer pain therapies; treatment in the community; acute, treatment-related and complex cancer pain are considered.

CONCLUSIONS

It is recognized that the World Health Organization (WHO) analgesic ladder, whilst providing relief of cancer pain towards the end of life for many sufferers world-wide, may have limitations in the context of longer survival and increasing disease complexity. To complement this, it is suggested that a more comprehensive model of managing cancer pain is needed that is mechanism-based and multimodal, using combination therapies including interventions where appropriate, tailored to the needs of an individual, with the aim to optimize pain relief with minimization of adverse effects.

Under-treatment of cancer pain

PURPOSE OF REVIEW

Cancer pain remains inadequately treated, despite internationally accepted management guidelines and a myriad of treatment options. Risk factors for undertreatment are reviewed, along with possible explanations. Recent studies documenting the scope of the problem as well as investigating solutions are discussed with clinical-practice recommendations outlined.

RECENT FINDINGS

Women over 65 years of age representative of a cultural minority, with earlier stage disease, cared for at home, and with high-school education or less are at highest risk of having uncontrolled cancer pain. Optimal treatment is impeded by patients' maladaptive beliefs, nonadherence, underreporting or miscommunication with caregivers; from a healthcare provider perspective, it may be due to inadequate assessment, documentation, knowledge, and communication. Emerging data support the vital influence of lay caregivers on appropriate pain management. Although home-education programs may decrease pain and improve quality of life, there are also less intensive approaches deliverable by individuals to holistically address pain.

SUMMARY

Prospective study of barriers to both delivery and receipt of adequate pain management is needed, as the majority of published literature is based on survey studies. Treatment must be individualized based on clinical circumstances and patient wishes, with the goal of maximizing function and quality of life.

Trends in publications regarding evidence-practice gaps: a literature review

BACKGROUND

Well-designed trials of strategies to improve adherence to clinical practice guidelines are needed to close persistent evidence-practice gaps. We studied how the number of these trials is changing with time, and to what extent physicians are participating in such trials.

METHODS

This is a literature-based study of trends in evidence-practice gap publications over 10 years and participation of clinicians in intervention trials to narrow evidence-practice gaps. We chose nine evidence-based guidelines and identified relevant publications in the PubMed database from January 1998 to December 2007. We coded these publications by study type (intervention versus non-intervention studies). We further subdivided intervention studies into those for clinicians and those for patients. Data were analyzed to determine if observed trends were statistically significant.

RESULTS

We identified 1,151 publications that discussed evidence-practice gaps in nine topic areas. There were 169 intervention studies that were designed to improve adherence to well-established clinical guidelines, averaging 1.9 studies per year per topic area. Twenty-eight publications (34%; 95% CI: 24% - 45%) reported interventions intended for clinicians or health systems that met Effective Practice and Organization of Care (EPOC) criteria for adequate design. The median consent rate of physicians asked to participate in these well-designed studies was 60% (95% CI, 25% to 69%).

CONCLUSIONS

We evaluated research publications for nine evidence-practice gaps, and identified small numbers of well-designed intervention trials and low rates of physician participation in these trials.

Patterns of pain and interference in patients with painful bone metastases: a brief pain inventory validation study

Bone metastases are prevalent, painful, and carry a poorer prognosis for pain control compared with other cancer pain syndromes. Standard tools to measure pain have not been validated in this patient population, and particular subgroups with more challenging symptoms have yet to be identified and studied. The objectives of this study were 1) to validate the psychometric properties of the Brief Pain Inventory (BPI) and its Pain and Interference subscales in patients with clinically significant metastatic bone pain requiring palliative radiotherapy and 2) to examine differences in BPI subscales among predefined subgroups of bone metastases patients. A total of 258 patients evaluated and treated through a rapid access radiation therapy clinic between July 2002, and November 2006, were included in the analysis. High internal consistency of the BPI subscales of Pain, Activity interference, and Affect interference was demonstrated by Cronbach's alpha between 0.81 and 0.89. Removing sleep interference improved model fit in confirmatory factor analysis. The BPI revealed an alarming pattern in patients with lower body metastases, who reported substantial interference of activity even though pain levels were mild or moderate. Such patients may require prompt clinical attention to better meet their needs. Finally, the allocation of interference from sleep within the BPI framework, in our population of pain patients, requires further study.

Access to pain treatment as a human right

BACKGROUND

Almost five decades ago, governments around the world adopted the 1961 Single Convention on Narcotic Drugs which, in addition to addressing the control of illicit narcotics, obligated countries to work towards universal access to the narcotic drugs necessary to alleviate pain and suffering. Yet, despite the existence of inexpensive and effective pain relief medicines, tens of millions of people around the world continue to suffer from moderate to severe pain each year without treatment.

DISCUSSION

Significant barriers to effective pain treatment include: the failure of many governments to put in place functioning drug supply systems; the failure to enact policies on pain treatment and palliative care; poor training of healthcare workers; the existence of unnecessarily restrictive drug control regulations and practices; fear among healthcare workers of legal sanctions for legitimate medical practice; and the inflated cost of pain treatment. These barriers can be understood not only as a failure to provide essential medicines and relieve suffering but also as human rights abuses.

SUMMARY

According to international human rights law, countries have to provide pain treatment medications as part of their core obligations under the right to health; failure to take reasonable steps to ensure that people who suffer pain have access to adequate pain treatment may result in the violation of the obligation to protect against cruel, inhuman and degrading treatment.

Mind-body treatments for the pain-fatigue-sleep disturbance symptom cluster in persons with cancer

CONTEXT

Co-occurring pain, fatigue, and sleep disturbance comprise a common symptom cluster in patients with cancer. Treatment approaches that target the cluster of symptoms rather than just a single symptom need to be identified and tested.

OBJECTIVES

To synthesize evidence regarding mind-body interventions that have shown efficacy in treating two or more symptoms in the pain-fatigue-sleep disturbance cancer symptom cluster.

METHODS

A literature search was conducted using CINAHL, Medline, and PsychInfo databases through March 2009. Studies were categorized based on the type of mind-body intervention (relaxation, imagery/hypnosis, cognitive-behavioral therapy/coping skills training [CBT/CST], meditation, music, and virtual reality), and a preliminary review was conducted with respect to efficacy for pain, fatigue, and sleep disturbance. Mind-body interventions were selected for review if there was evidence of efficacy for at least two of the three symptoms. Forty-three studies addressing five types of mind-body interventions met criteria and are summarized in this review.

RESULTS

Imagery/hypnosis and CBT/CST interventions have produced improvement in all the three cancer-related symptoms individually: pain, fatigue, and sleep disturbance. Relaxation has resulted in improvements in pain and sleep disturbance. Meditation interventions have demonstrated beneficial effects on fatigue and sleep disturbance. Music interventions have demonstrated efficacy for pain and fatigue. No trials were found that tested the mind-body interventions specifically for the pain-fatigue-sleep disturbance symptom cluster.

CONCLUSION

Efficacy studies are needed to test the impact of relaxation, imagery/hypnosis, CBT/CST, meditation, and music interventions in persons with cancer experiencing concurrent pain, fatigue, and sleep disturbance. These mind-body interventions could help patients manage all the symptoms in the cluster with a single treatment strategy.

Prevalence and correlates of pain in the Canadian National Palliative Care Survey

BACKGROUND

Pain is a common problem for people with cancer who are nearing the ends of their lives.

OBJECTIVE

In the present multicentre Canadian study of palliative cancer care, the prevalence of pain, its perceived severity and its correlates across a range of physical, social, psychological, and existential symptoms and concerns were examined.

METHODS

Semistructured interviews were conducted with 381 patients. In addition to inquiring about pain, the interview also assessed 21 other symptoms and concerns, and collected information about demographic characteristics, functional status and medication use.

RESULTS

Pain of any intensity was reported by 268 (70.3%) participants, although for 139 (36.5%), the severity was rated as minimal or mild. For 129 (33.9%) individuals, pain was reported as moderate to extreme, and considered by the respondents to be an important ongoing problem. Patients who reported moderate to extreme pain were younger than other participants, but had lower functional status and a shorter median survival duration. They were more likely than other participants to be treated with opioid medications (P<0.001) and, less reliably, with benzodiazepines (P=0.079). Compared with participants with no, minimal or mild pain, those with moderate to extreme pain had a higher prevalence of distressing problems on 11 of 21 other symptoms and concerns. The strongest correlations were with general malaise (rho = 0.44), suffering (rho = 0.40), nausea (rho = 0.34), weakness (rho = 0.31), drowsiness (rho = 0.29) and anxiety (rho = 0.29).

CONCLUSIONS

Pain continues to be a difficult problem for many patients who are receiving palliative cancer care, particularly younger individuals who are nearing death.

Continuous Deep Sedation Until Death: Palliation or Physician-Assisted Death?

Published literature have not discerned end-of-life palliative versus life-shortening effects of pharmacologically maintaining continuous deep sedation until death (ie, dying in deep sleep) compared with common sedation practices relieving distress in the final conscious phase of dying. Continuous deep sedation predictably suppresses brainstem vital centers and shortens life. Continuous deep sedation remains controversial as palliation for existential suffering and in elective death requests by discontinuation of chronic ventilation or circulatory support with mechanical devices. Continuous deep sedation contravenes the double-effect principle because: (1) it induces permanent coma (intent of action) for the contingency relief of suffering and for social isolation (desired outcomes) and (2) because of its predictable and proportional life-shortening effect. Continuous deep sedation should be distinguished from common sedation practices for palliation and characterized instead as physician-assisted death.

Managing severe cancer pain: the role of transdermal buprenorphine: a systematic review

Pain is a frequent and important symptom in cancer patients. Among the available strong opioids, transdermal buprenorphine has been licensed in Europe since 2002, and results from a few clinical studies suggest that it may be a good alternative to the other oral or transdermal opioids. To assess the best available evidence on its efficacy and safety, we carried out a systematic literature review with the aim of pooling relevant studies. We identified 19 eligible papers describing 12 clinical studies (6 randomized controlled trials and 6 observational prospective studies), including a total of about 5000 cancer patients. Given the poor quality of reports and the heterogeneity of methods and outcomes, pooling was not feasible as the type of data was not appropriate for combining the results statistically. A meta-analysis based on individual data is ongoing in the context of the Cochrane Collaboration. In conclusion, although the narrative appraisal of each study suggests a positive risk benefit profile, well designed and statistically powered controlled clinical trials are needed to confirm this preliminary evidence.

Management of pain

Pain is a common symptom that patients describe and clinicians have to manage. Management plans are tailored to the complexity of the pain. This may require a multi-modal approach while involving the wider multidisciplinary team.

Quality of life and non-pain symptoms in patients with cancer

To measure the prevalence of non-pain physical symptoms and psychological symptoms in patients with cancer, to investigate the impact of physical and psychological symptoms on their quality of life (QoL), and to inquire whether treatment had been received for the complaints/symptoms, a representative sample of 1,429 cancer patients were recruited and classified according to tumor type and treatment status [i.e., (1a) curative treatment >6 months ago, (1b) curative treatment <or=6 months ago, (2) palliative antitumor treatment, and (3) treatment no longer feasible]. QoL and non-pain symptoms were measured by the European Organisation for Research and Treatment of Cancer (EORTC)-C30 version 3. We added two items: (1) Did you have a dry mouth? and (2) Did you feel listless? We also asked whether the patients had received treatment for their symptoms. Depression and anxiety were measured by the Dutch version of the Hospital Anxiety and Depression Scale. One-way analysis of variance (ANOVA) was used to detect differences in global QoL between patients with different types of cancer. When ANOVA was significant, post hoc tests (Tukey) were performed to identify significant differences among cancer types. Linear regression analyses (forced entrance procedure) were performed to investigate the influence of physical and psychological symptoms on global QoL. The prevalence of moderate-to-severe symptoms increased significantly with each disease group. Vomiting and irritability were the least prevalent symptoms, and fatigue and worries were the most prevalent symptoms in all groups. Patients in Group 1 (curative treatment) experienced symptoms that were independent of cancer type. Patients in Group 2 (palliative treatment) experienced symptoms that varied with cancer type. QoL decreased significantly each step from Group 1 through 3. Fatigue, appetite loss, constipation, dry mouth, depression, and anxiety had independent negative influences on QoL. Patients with gastrointestinal cancer, malignant lymphoma, and other hematological malignancies had significantly poorer QoL than patients with prostate cancer. In 45%-90% of patients, symptoms remained untreated. Non-pain physical symptoms and psychological symptoms are frequent in patients with cancer at all disease phases. Many symptoms remain untreated. Systematic recording of symptom intensity should be mandatory, irrespective of the phase of disease.

Co-occurrence and associations of pain and fatigue in a community sample of Dutch adults

Widespread pain and chronic fatigue are common in the general population. Previous research has demonstrated co-occurrence of syndromes that are associated with pain and fatigue (fibromyalgia and chronic fatigue syndrome), but there is limited existing data on the co-occurrence of these symptoms in general. This study investigates the co-occurrence of pain and fatigue, and characterises people with these symptoms individually, and in combination. A postal questionnaire was sent to a random sample of 4741 community dwelling Dutch adults registered with five general practices. There were 2447 participants (adjusted response=53.5%). Persistent fatigue was reported by 60% of the 451 subjects with chronic widespread pain. Chronic widespread pain was reported by 33% of the 809 responders with persistent fatigue. Anxiety and depression were more common in subjects who reported both symptoms than those who reported either one or neither. Participants who had chronic disease, high body mass index, low activity levels or did not perceive ability to influence health had higher adjusted odds of reporting both symptoms (but not one alone) than subjects not having these characteristics. Pain and fatigue occur more often than would be expected by chance and there are a number of reasons for this. Clinicians should be aware that co-occurrence of the symptoms is common, especially in people who have high BMI or chronic disease, and that people with both symptoms are often anxious or depressed. Further work should address longitudinal associations of pain and fatigue.

Management of cancer-related pain

Patients and families struggling with cancer fear pain more than any other physical symptom. There are also significant barriers to optimal pain management in the emergency setting, including lack of knowledge, inexperienced clinicians, myths about addiction, and fears of complications after discharge. In this article, we review the assessment and management options for cancer-related pain based on the World Health Organization (WHO) 3-step approach.

Pattern and quality of care of cancer pain management. Results from the Cancer Pain Outcome Research Study Group

Most patients with advanced or metastatic cancer experience pain and despite several guidelines, undertreatment is well documented. A multicenter, open-label, prospective, non-randomised study was launched in Italy in 2006 to evaluate the epidemiology, patterns and quality of pain care of cancer patients. To assess the adequacy of analgesic care, we used a standardised measure, the pain management index (PMI), that compares the most potent analgesic prescribed for a patient with the reported level of the worst pain of that patient together with a selected list of clinical indicators. A total of 110 centres recruited 1801 valid cases. 61% of cases were received a WHO-level III opioid; 25.3% were classified as potentially undertreated, with wide variation (9.8–55.3%) according to the variables describing patients, centres and pattern of care. After adjustment with a multivariable logistic regression model, type of recruiting centre, receiving adjuvant therapy or not and type of patient recruited (new or already on follow-up) had a significant association with undertreatment. Non-compliance with the predefined set of clinical indicators was generally high, ranging from 41 to 76%. Despite intrinsic limitations of the PMI that may be considered as an indicator of the poor quality of cancer pain care, results suggest that the recourse to WHO third-level drugs still seems delayed in a substantial percentage of patients. This delay is probably related to several factors affecting practice in participating centres and suggests that the quality of cancer pain management in Italy deserves specific attention and interventions aimed at improving patients’ outcomes.

Cancer pain as the presenting problem in emergency departments: incidence and related factors

GOALS OF WORK

Since emergency departments (ED) are designed to manage people with urgent and life-threatening conditions, cancer patients presenting with pain may not receive the appropriate care in the ED. The purpose of this study was to identify the incidence and factors related to ED visits by cancer patients with pain complaints.

MATERIALS AND METHODS

Medical charts selected by stratified random sampling were retrospectively reviewed to obtain information about ED visits by cancer patients during a 1-year period. The sample included 1,179 ED visits by 1,026 cancer patients.

MAIN RESULTS

Pain was the most common reason for ED visits by cancer patients. The incidence of ED visits for pain as a presenting problem was 27.8%. The 72-h ED return-visit rate was 8.2% for cancer patients who visited the ED with pain complaints. Patients with gastrointestinal and genitourinary cancers were more likely to visit the ED for pain. Patients who had received radiation therapy were less likely to visit the ED for pain.

CONCLUSION

Effective cancer pain management programs need to be developed and tested to reduce ED visits by cancer patients with pain. More research is needed to explore why cancer patients with pain visit the ED.

Living with head and neck cancer and coping with dying when treatments fail

Palliative care in patients who have head and neck cancer is a complex topic that requires a multifaceted approach. The head and neck surgeon has an important duty to fulfill in managing and following the wishes of the incurable cancer patient and is obligated to direct them to the appropriate services in this challenging time.

Procedure-related pain among adult patients with hematologic malignancies

BACKGROUND

Cancer patients undergo numerous invasive diagnostic procedures. However, there are only sparse data on the characteristics and determinants for procedure-related pain among adult cancer patients.

METHODS

In this prospective study, we evaluated the characteristics and determinants of procedure-related pain in 235 consecutive hematologic patients (M/F:126/109; median age 62 years, range 20-89 years) undergoing a bone marrow aspiration/biopsy (BMA) under local anesthesia. Questionnaires were used to assess patients before-, 10 min and 1-7 days post BMA. Using logistic regression models, we calculated odds ratios (ORs) and 95% confidence intervals (CIs).

RESULTS

165/235 (70%) patients reported pain during BMA; 92 (56%), 53 (32%) and 5 (3%) of these indicated moderate [visual analogue scale (VAS)>or=30 mm], severe (VAS>54 mm) and worst possible pain (VAS=100 mm), respectively. On multivariate analyses, pre-existing pain (OR=2.60 95% CI 1.26-5.36), anxiety about the diagnostic outcome of BMA (OR=3.17 95% CI 1.54-6.52), anxiety about needle-insertion (OR=2.49 95% CI 1.22-5.10) and low employment status (sick-leave/unemployed) (OR=3.14 95% CI 1.31-7.55) were independently associated with an increased risk of pain during BMA. At follow-up 10 min after BMA, 40/235 (17%) patients reported pain. At 1, 3, 6 and 7 days post BMA, pain was present in 137 (64%), 90 (42%), 43 (20%) and 25 (12%) patients, respectively.

CONCLUSIONS

We found that 3/4 of hematologic patients who underwent BMA reported procedural pain; one third of these patients indicated severe pain. Pre-existing pain, anxiety about the diagnostic outcome of BMA or needle-insertion, and low employment status were independent risk factors.

A systematic review on barriers hindering adequate cancer pain management and interventions to reduce them: a critical appraisal

The aim of this paper is to identify the major barriers hindering adequate pain management and critically review interventions aiming to overcome them. We searched relevant literature on PubMed published between January 1986 and April 2007. The most frequently mentioned barriers for both patients and professionals were knowledge deficits, inadequate pain assessment and misconceptions regarding pain. Four interventions were identified: patient education, professional education, pain assessment and pain consultation. These interventions were never combined in multidisciplinary study protocols. Most RCTs included small groups of patients and reported no power analysis. Studies on professional education and pain assessment did not evaluate patients' outcomes. In 5 of 11 RCTs on patient education, pain intensity decreased statistically significantly. In two RCTs on pain consultation, patients' pain decreased statistically significantly, although the adequacy of pain treatment did not change. In conclusion, international guidelines on multidisciplinary interventions in pain management are partly substantiated by clinical trials.

Impact of a new palliative care consultation team on opioid prescription in a University Hospital

BACKGROUND

There are no validated measuring tools to gauge the effectiveness of a Hospital Palliative Care Consultation Team (PCCT). One way would be to consider its effect on the consumption of opioids expressed in total amounts and different formulations administered. We perform this study to evaluate the impact of a hospital PCCT on the trends of opioid prescription in a University Hospital.

METHODS

A seven year retrospective study on opioid prescription was carried out in the Clínica Universidad de Navarra. The period includes three years before and three years after the PCCT was implemented. Prescription was analysed calculating yearly the Defined Daily Dose (DDD) adjusted to 1000 hospital stays (DDD/1000HS). Indicators considered were the proportion of patients treated using opioids compared to the total estimated in need of treatment (rate of effectiveness) and the proportion of patients potentially requiring opioids but not treated who were incorporated into the treatment group (rate of improvement).

RESULTS

From 2001 to 2007, total opioid prescription was low in non-oncology Departments (range: 69-110 DDD/1000HS) while parenteral morphine and fentanyl did not register any changes. In the same period of time, total opioid prescription increased in the Oncology Department from 240 to 558 DDD/1000HS. The rate of effectiveness in the three years prior to the implantation of the consultation team was 64% and in the three following years rose to 87%. The rate of improvement prior to the palliative care consultation team was 43% and in the three following years was 64%. A change in opioid prescription was registered after the implementation of the PCCT resulting in an increase in the prescription of parenteral morphine and methadone and a decrease in transdermal fentanyl.

CONCLUSION

Implementation of a PCCT in a University Hospital is associated with a higher and more adequate use of opioids.

Randomized clinical trial of an intensive nursing-based pain education program for cancer outpatients suffering from pain

Introduction

The prevalence of pain in patients with cancer is still too high. Factors relating to ineffective pain treatment fall into three categories: the health care system, professional care providers, and patients. In patients, various barriers lead to noncompliance. Previous educational interventions have increased their knowledge of pain and decreased short-term pain levels. In this randomized controlled trial, the authors investigated how an intensive home-based education program given by nurses affected short-term and long-term pain levels.

Materials and methods

One hundred and twenty cancer patients were randomized to receive either the pain education program (PEP) or usual care. Pain, knowledge, quality of life, anxiety, and depression were measured at baseline and after 4 and 8 weeks. In the intervention group, effects on symptom levels were communicated to the treating physician.

Results

The level of pain had decreased at 4 weeks, but not at 8 weeks. Significant decreases in pain only persisted in those patients with a high pain score at baseline. Knowledge of pain significantly increased in the intervention group. No correlation was found between increased pain knowledge and decreased pain levels.

Conclusions

The PEP given by nurses lowered pain intensity levels in cancer patients and increased their knowledge of pain. More attention should be paid to patient education and to communication between patients and health professionals regarding pain and pain management.